3.2.1

.serena/.gitignore

@@ -0,0 +1 @@
+/cache

.serena/project.yml

@@ -0,0 +1,67 @@
+# language of the project (csharp, python, rust, java, typescript, go, cpp, or ruby)
+#  * For C, use cpp
+#  * For JavaScript, use typescript
+# Special requirements:
+#  * csharp: Requires the presence of a .sln file in the project folder.
+language: typescript
+
+# whether to use the project's gitignore file to ignore files
+# Added on 2025-04-07
+ignore_all_files_in_gitignore: true
+# list of additional paths to ignore
+# same syntax as gitignore, so you can use * and **
+# Was previously called `ignored_dirs`, please update your config if you are using that.
+# Added (renamed) on 2025-04-07
+ignored_paths: []
+
+# whether the project is in read-only mode
+# If set to true, all editing tools will be disabled and attempts to use them will result in an error
+# Added on 2025-04-18
+read_only: false
+
+# list of tool names to exclude. We recommend not excluding any tools, see the readme for more details.
+# Below is the complete list of tools for convenience.
+# To make sure you have the latest list of tools, and to view their descriptions, 
+# execute `uv run scripts/print_tool_overview.py`.
+#
+#  * `activate_project`: Activates a project by name.
+#  * `check_onboarding_performed`: Checks whether project onboarding was already performed.
+#  * `create_text_file`: Creates/overwrites a file in the project directory.
+#  * `delete_lines`: Deletes a range of lines within a file.
+#  * `delete_memory`: Deletes a memory from Serena's project-specific memory store.
+#  * `execute_shell_command`: Executes a shell command.
+#  * `find_referencing_code_snippets`: Finds code snippets in which the symbol at the given location is referenced.
+#  * `find_referencing_symbols`: Finds symbols that reference the symbol at the given location (optionally filtered by type).
+#  * `find_symbol`: Performs a global (or local) search for symbols with/containing a given name/substring (optionally filtered by type).
+#  * `get_current_config`: Prints the current configuration of the agent, including the active and available projects, tools, contexts, and modes.
+#  * `get_symbols_overview`: Gets an overview of the top-level symbols defined in a given file.
+#  * `initial_instructions`: Gets the initial instructions for the current project.
+#     Should only be used in settings where the system prompt cannot be set,
+#     e.g. in clients you have no control over, like Claude Desktop.
+#  * `insert_after_symbol`: Inserts content after the end of the definition of a given symbol.
+#  * `insert_at_line`: Inserts content at a given line in a file.
+#  * `insert_before_symbol`: Inserts content before the beginning of the definition of a given symbol.
+#  * `list_dir`: Lists files and directories in the given directory (optionally with recursion).
+#  * `list_memories`: Lists memories in Serena's project-specific memory store.
+#  * `onboarding`: Performs onboarding (identifying the project structure and essential tasks, e.g. for testing or building).
+#  * `prepare_for_new_conversation`: Provides instructions for preparing for a new conversation (in order to continue with the necessary context).
+#  * `read_file`: Reads a file within the project directory.
+#  * `read_memory`: Reads the memory with the given name from Serena's project-specific memory store.
+#  * `remove_project`: Removes a project from the Serena configuration.
+#  * `replace_lines`: Replaces a range of lines within a file with new content.
+#  * `replace_symbol_body`: Replaces the full definition of a symbol.
+#  * `restart_language_server`: Restarts the language server, may be necessary when edits not through Serena happen.
+#  * `search_for_pattern`: Performs a search for a pattern in the project.
+#  * `summarize_changes`: Provides instructions for summarizing the changes made to the codebase.
+#  * `switch_modes`: Activates modes by providing a list of their names
+#  * `think_about_collected_information`: Thinking tool for pondering the completeness of collected information.
+#  * `think_about_task_adherence`: Thinking tool for determining whether the agent is still on track with the current task.
+#  * `think_about_whether_you_are_done`: Thinking tool for determining whether the task is truly completed.
+#  * `write_memory`: Writes a named memory (for future reference) to Serena's project-specific memory store.
+excluded_tools: []
+
+# initial prompt for the project. It will always be given to the LLM upon activating the project
+# (contrary to the memories, which are loaded on demand).
+initial_prompt: ""
+
+project_name: "opendata"

changelog.md

@@ -1,5 +1,91 @@
 # Changelog
 
+## 2025-11-01 - 3.2.1 - fix(stocks/providers/provider.secedgar)
+Improve SEC EDGAR provider networking and error handling, update plugin path import, bump dev deps and add/refresh tests and lockfile
+
+- SEC EDGAR provider: switch from SmartRequest to native fetch for ticker list and company facts, add AbortController-based timeouts, handle gzip automatically, improve response validation and error messages, and keep CIK/ticker-list caching
+- Improve timeout and rate-limit handling in SecEdgarProvider (uses native fetch + explicit timeout clear), plus clearer logging on failures
+- Update ts/plugins import to use node:path for Node compatibility
+- Bump devDependencies: @git.zone/tsrun to ^1.6.2 and @git.zone/tstest to ^2.7.0; bump @push.rocks/smartrequest to ^4.3.4
+- Add and refresh comprehensive test files (node/bun/deno variants) for fundamentals, marketstack, secedgar and stockdata services
+- Add deno.lock (dependency lock) and a local .claude/settings.local.json for CI/permissions
+
+## 2025-11-01 - 3.2.0 - feat(StockDataService)
+Add unified StockDataService and BaseProviderService with new stockdata interfaces, provider integrations, tests and README updates
+
+- Introduce StockDataService: unified API to fetch prices and fundamentals with automatic enrichment and caching
+- Add IStockData and IStockDataServiceConfig interfaces to define combined price+fundamentals payloads and configuration
+- Implement BaseProviderService abstraction to share provider registration, health, stats and caching logic
+- Add classes.stockdataservice.ts implementing batch/single fetch, enrichment, caching, health checks and provider stats
+- Export new stockdata module and classes from ts/stocks/index.ts
+- Add comprehensive tests: test/test.stockdata.service.node.ts to cover setup, provider registration, fetching, caching, enrichment, health and error handling
+- Update README with Unified Stock Data API examples, usage, and documentation reflecting new unified service
+- Minor infra: add .claude/settings.local.json permissions for local tooling and web fetch domains
+
+## 2025-11-01 - 3.1.0 - feat(fundamentals)
+Add FundamentalsService and SEC EDGAR provider with caching, rate-limiting, tests, and docs updates
+
+- Introduce FundamentalsService to manage fundamentals providers, caching, retry logic and provider statistics
+- Add SecEdgarProvider to fetch SEC EDGAR company facts (CIK lookup, company facts parsing) with rate limiting and local caches
+- Expose fundamentals interfaces and services from ts/stocks (exports updated)
+- Add comprehensive tests for FundamentalsService and SecEdgarProvider (new test files)
+- Update README with new Fundamentals module documentation, usage examples, and configuration guidance
+- Implement caching and TTL handling for fundamentals data and provider-specific cache TTL support
+- Add .claude/settings.local.json (local permissions) and various test improvements
+
+## 2025-10-31 - 3.0.0 - BREAKING CHANGE(stocks)
+Unify stock provider API to discriminated IStockDataRequest and add company name/fullname enrichment
+
+- Replace legacy provider methods (fetchPrice/fetchPrices) with a single fetchData(request: IStockDataRequest) on IStockProvider — providers must be migrated to the new signature.
+- Migrate StockPriceService to the unified getData(request: IStockDataRequest) API. Convenience helpers getPrice/getPrices now wrap getData.
+- Add companyName and companyFullName fields to IStockPrice and populate them in provider mappings (Marketstack mapping updated; Yahoo provider updated to support the unified API).
+- MarketstackProvider: added buildCompanyFullName helper and improved mapping to include company identification fields and full name formatting.
+- YahooFinanceProvider: updated to implement fetchData and to route current/batch requests through the new unified request types; historical/intraday throw explicit errors.
+- Updated tests to exercise the new unified API, company-name enrichment, caching behavior, and provider direct methods.
+- Note: This is a breaking change for external providers and integrations that implemented the old fetchPrice/fetchPrices API. Bump major version.
+
+## 2025-10-31 - 2.1.0 - feat(stocks)
+Add unified stock data API (getData) with historical/OHLCV support, smart caching and provider enhancements
+
+- Introduce discriminated union request types (IStockDataRequest) and a unified getData() method (replaces legacy getPrice/getPrices for new use cases)
+- Add OHLCV fields (open, high, low, volume, adjusted) and metadata (dataType, fetchedAt) to IStockPrice
+- Implement data-type aware smart caching with TTLs (historical = never expire, EOD = 24h, live = 30s, intraday matches interval)
+- Extend StockPriceService: new getData(), data-specific cache keys, cache maxEntries increased (default 10000), and TTL-aware add/get cache logic
+- Enhance Marketstack provider: unified fetchData(), historical date-range retrieval with pagination, exchange filtering, batch current fetch, OHLCV mapping, and intraday placeholder
+- Update Yahoo provider to include dataType and fetchedAt (live data) and maintain legacy fetchPrice/fetchPrices compatibility
+- Add/adjust tests to cover unified API, historical retrieval, OHLCV presence and smart caching behavior; test setup updated to require explicit OpenData directory paths
+- Update README to document v2.1 changes, migration examples, and new stock provider capabilities
+
+## 2025-10-31 - 2.0.0 - BREAKING CHANGE(OpenData)
+Require explicit directory paths for OpenData (nogit/download/germanBusinessData); remove automatic .nogit creation; update HandelsRegister, JsonlDataProcessor, tests and README.
+
+- Breaking: OpenData constructor now requires a config object with nogitDir, downloadDir and germanBusinessDataDir. The constructor will throw if these paths are not provided.
+- Removed automatic creation/export of .nogit/download/germanBusinessData from ts/paths. OpenData.start now ensures the required directories exist.
+- HandelsRegister API changed: constructor now accepts downloadDir and manages its own unique download folder; screenshot and download paths now use the configured downloadDir.
+- JsonlDataProcessor now accepts a germanBusinessDataDir parameter and uses it when ensuring/storing data instead of relying on global paths.
+- Updated tests to provide explicit path configuration (tests now set testNogitDir, testDownloadDir, testGermanBusinessDataDir and write outputs accordingly) and to use updated constructors and qenv usage.
+- Documentation updated (README) to document the breaking change and show examples for required directory configuration when instantiating OpenData.
+- Added .claude/settings.local.json for local permissions/config used in development/CI environments.
+
+## 2025-10-11 - 1.7.0 - feat(stocks)
+Add Marketstack provider (EOD) with tests, exports and documentation updates
+
+- Add MarketstackProvider implementation (ts/stocks/providers/provider.marketstack.ts) providing EOD single and batch fetching, availability checks and mapping to IStockPrice.
+- Export MarketstackProvider from ts/stocks/index.ts so it is available via the public API.
+- Add comprehensive Marketstack tests (test/test.marketstack.node.ts) covering registration, health checks, single/batch fetches, caching, ticker/market validation, provider stats and sample output.
+- Update README with Marketstack usage examples, configuration, API key instructions and provider/health documentation.
+- Bump dev dependency @git.zone/tstest to ^2.4.2 in package.json.
+- Add project helper/config files (.claude/settings.local.json, .serena/project.yml and .serena/.gitignore) to support CI/tooling.
+
+## 2025-09-24 - 1.6.1 - fix(stocks)
+Fix Yahoo provider request handling and bump dependency versions
+
+- Refactored Yahoo Finance provider to use SmartRequest.create() builder and await response.json() for HTTP responses (replaces direct getJson usage).
+- Improved batch and single-price fetching to use the SmartRequest API, keeping User-Agent header and timeouts.
+- Added a compile-time type-check alias to ensure IStockPrice matches tsclass.finance.IStockPrice.
+- Bumped development and runtime dependency versions (notable bumps include @git.zone/tsbuild, @git.zone/tstest, @push.rocks/qenv, @push.rocks/smartarchive, @push.rocks/smartdata, @push.rocks/smartfile, @push.rocks/smartlog, @push.rocks/smartpath, @push.rocks/smartrequest, @tsclass/tsclass).
+- Added .claude/settings.local.json to grant local CI permissions for a few Bash commands.
+
 ## 2025-07-12 - 1.6.0 - feat(readme)
 Revamp documentation and package description for enhanced clarity
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@fin.cx/opendata",
-  "version": "1.6.0",
+  "version": "3.2.1",
   "private": false,
   "description": "A comprehensive TypeScript library for accessing business data and real-time financial information. Features include German company data management with MongoDB integration, JSONL bulk processing, automated Handelsregister interactions, and real-time stock market data from multiple providers.",
   "main": "dist_ts/index.js",
@@ -14,29 +14,29 @@
     "buildDocs": "(tsdoc)"
   },
   "devDependencies": {
-    "@git.zone/tsbuild": "^2.6.4",
+    "@git.zone/tsbuild": "^2.6.8",
     "@git.zone/tsbundle": "^2.5.1",
-    "@git.zone/tsrun": "^1.3.3",
-    "@git.zone/tstest": "^2.3.1",
+    "@git.zone/tsrun": "^1.6.2",
+    "@git.zone/tstest": "^2.7.0",
     "@types/node": "^22.14.0"
   },
   "dependencies": {
     "@push.rocks/lik": "^6.2.2",
-    "@push.rocks/qenv": "^6.1.0",
-    "@push.rocks/smartarchive": "^4.0.39",
+    "@push.rocks/qenv": "^6.1.3",
+    "@push.rocks/smartarchive": "^4.2.2",
     "@push.rocks/smartarray": "^1.1.0",
     "@push.rocks/smartbrowser": "^2.0.8",
-    "@push.rocks/smartdata": "^5.15.1",
+    "@push.rocks/smartdata": "^5.16.4",
     "@push.rocks/smartdelay": "^3.0.5",
-    "@push.rocks/smartfile": "^11.2.5",
-    "@push.rocks/smartlog": "^3.1.8",
-    "@push.rocks/smartpath": "^5.0.18",
+    "@push.rocks/smartfile": "^11.2.7",
+    "@push.rocks/smartlog": "^3.1.10",
+    "@push.rocks/smartpath": "^6.0.0",
     "@push.rocks/smartpromise": "^4.2.3",
-    "@push.rocks/smartrequest": "^2.1.0",
+    "@push.rocks/smartrequest": "^4.3.4",
     "@push.rocks/smartstream": "^3.2.5",
     "@push.rocks/smartunique": "^3.0.9",
     "@push.rocks/smartxml": "^1.1.1",
-    "@tsclass/tsclass": "^9.2.0"
+    "@tsclass/tsclass": "^9.3.0"
   },
   "repository": {
     "type": "git",

readme.md

@@ -1,119 +1,378 @@
 # @fin.cx/opendata
-🚀 **Real-time financial data and German business intelligence in one powerful TypeScript library**
 
-Access live stock prices, cryptocurrencies, forex, commodities AND comprehensive German company data - all through a single, unified API.
+🚀 **Complete financial intelligence toolkit for TypeScript**
+
+Access real-time stock prices, fundamental financial data, and comprehensive German company information - all through a single, unified API.
 
 ## Installation
 
 ```bash
 npm install @fin.cx/opendata
 # or
-yarn add @fin.cx/opendata
+pnpm add @fin.cx/opendata
 ```
 
 ## Quick Start
 
-### 📈 Real-Time Stock Data
+### ✨ Unified Stock Data API (Recommended)
 
-Get live market data in seconds:
+Get complete stock data with automatic enrichment - the elegant way:
 
 ```typescript
-import { StockPriceService, YahooFinanceProvider } from '@fin.cx/opendata';
+import { StockDataService, YahooFinanceProvider, SecEdgarProvider } from '@fin.cx/opendata';
 
-// Initialize the service
-const stockService = new StockPriceService();
-stockService.register(new YahooFinanceProvider());
+// Initialize unified service
+const stockData = new StockDataService();
 
-// Get single stock price
-const apple = await stockService.getPrice({ ticker: 'AAPL' });
-console.log(`Apple: $${apple.price} (${apple.changePercent.toFixed(2)}%)`);
+// Register providers
+stockData.registerPriceProvider(new YahooFinanceProvider());
+stockData.registerFundamentalsProvider(new SecEdgarProvider({
+  userAgent: 'YourCompany youremail@example.com'
+}));
 
-// Get multiple prices at once
-const prices = await stockService.getPrices({ 
-  tickers: ['AAPL', 'MSFT', 'GOOGL', 'BTC-USD', 'ETH-USD'] 
+// ✨ Get complete stock data with ONE method call
+const apple = await stockData.getStockData('AAPL');
+
+console.log({
+  company: apple.fundamentals.companyName,      // "Apple Inc."
+  price: apple.price.price,                     // $270.37
+  marketCap: apple.fundamentals.marketCap,      // $4.13T (auto-calculated!)
+  peRatio: apple.fundamentals.priceToEarnings,  // 28.42 (auto-calculated!)
+  pbRatio: apple.fundamentals.priceToBook,      // 45.12 (auto-calculated!)
+  eps: apple.fundamentals.earningsPerShareDiluted,  // $6.13
+  revenue: apple.fundamentals.revenue            // $385.6B
 });
 
-// Market indices, crypto, forex, commodities - all supported!
-const marketData = await stockService.getPrices({
-  tickers: ['^GSPC', '^DJI', 'BTC-USD', 'EURUSD=X', 'GC=F']
+// Batch fetch with automatic enrichment
+const stocks = await stockData.getBatchStockData(['AAPL', 'MSFT', 'GOOGL']);
+
+stocks.forEach(stock => {
+  console.log(`${stock.ticker}: $${stock.price.price.toFixed(2)}, ` +
+              `P/E ${stock.fundamentals?.priceToEarnings?.toFixed(2)}`);
 });
+// Output:
+// AAPL: $270.37, P/E 28.42
+// MSFT: $425.50, P/E 34.21
+// GOOGL: $142.15, P/E 25.63
 ```
 
-### 🏢 German Business Data
+**Why use the unified API?**
+- ✅ **Single service** for both prices and fundamentals
+- ✅ **Automatic enrichment** - Market cap, P/E, P/B calculated automatically
+- ✅ **One method call** - No manual `enrichWithPrice()` calls
+- ✅ **Simplified code** - Less boilerplate, more readable
+- ✅ **Type-safe** - Full TypeScript support
 
-Access comprehensive data on German companies:
+### 📈 Price-Only Data (Alternative)
+
+If you only need prices without fundamentals:
+
+```typescript
+import { StockDataService, YahooFinanceProvider } from '@fin.cx/opendata';
+
+const stockData = new StockDataService();
+stockData.registerPriceProvider(new YahooFinanceProvider());
+
+// Get just the price
+const price = await stockData.getPrice('AAPL');
+console.log(`${price.ticker}: $${price.price}`);
+
+// Or use StockPriceService directly for more control
+import { StockPriceService } from '@fin.cx/opendata';
+
+const stockService = new StockPriceService({ ttl: 60000 });
+stockService.register(new YahooFinanceProvider());
+
+const apple = await stockService.getData({ type: 'current', ticker: 'AAPL' });
+console.log(`${apple.companyFullName}: $${apple.price}`);
+```
+
+### 💰 Fundamentals-Only Data (Alternative)
+
+If you only need fundamentals without prices:
+
+```typescript
+import { StockDataService, SecEdgarProvider } from '@fin.cx/opendata';
+
+const stockData = new StockDataService();
+stockData.registerFundamentalsProvider(new SecEdgarProvider({
+  userAgent: 'YourCompany youremail@example.com'
+}));
+
+// Get just fundamentals
+const fundamentals = await stockData.getFundamentals('AAPL');
+
+console.log({
+  company: fundamentals.companyName,
+  eps: fundamentals.earningsPerShareDiluted,
+  revenue: fundamentals.revenue,
+  sharesOutstanding: fundamentals.sharesOutstanding
+});
+
+// Or use FundamentalsService directly
+import { FundamentalsService } from '@fin.cx/opendata';
+
+const fundamentalsService = new FundamentalsService();
+fundamentalsService.register(new SecEdgarProvider({
+  userAgent: 'YourCompany youremail@example.com'
+}));
+
+const data = await fundamentalsService.getFundamentals('AAPL');
+```
+
+### 🏢 German Business Intelligence
+
+Access comprehensive German company data:
 
 ```typescript
 import { OpenData } from '@fin.cx/opendata';
+import * as path from 'path';
 
-const openData = new OpenData();
+// Configure directory paths
+const openData = new OpenData({
+  nogitDir: path.join(process.cwd(), '.nogit'),
+  downloadDir: path.join(process.cwd(), '.nogit', 'downloads'),
+  germanBusinessDataDir: path.join(process.cwd(), '.nogit', 'germanbusinessdata')
+});
 await openData.start();
 
-// Create a business record
-const company = new openData.CBusinessRecord();
-company.data = {
-  name: "TechStart GmbH",
-  city: "Berlin",
-  registrationId: "HRB 123456",
-  // ... more fields
-};
-await company.save();
+// Search for companies
+const results = await openData.handelsregister.searchCompany("Siemens AG");
 
-// Search companies by city
-const berlinCompanies = await openData.db
-  .collection('businessrecords')
-  .find({ city: "Berlin" })
-  .toArray();
-
-// Import bulk data from official sources
-await openData.buildInitialDb();
+// Get detailed information with documents
+const details = await openData.handelsregister.getSpecificCompany({
+  court: "Munich",
+  type: "HRB",
+  number: "6684"
+});
 ```
 
 ## Features
 
-### 🎯 Stock Market Module
+### 📊 Stock Market Module
 
-- **Real-time prices** for stocks, ETFs, indices, crypto, forex, and commodities
-- **Batch operations** - fetch 100+ symbols in one request
-- **Smart caching** - configurable TTL, automatic invalidation
-- **Provider system** - easily extensible for new data sources
-- **Automatic retries** and fallback mechanisms
-- **Type-safe** - full TypeScript support with detailed interfaces
+- **Real-Time Prices** - Live and EOD stock prices from Yahoo Finance and Marketstack
+- **Company Names** - Automatic company name extraction (e.g., "Apple Inc (NASDAQ:AAPL)")
+- **Historical Data** - Up to 15 years of daily EOD prices with pagination
+- **OHLCV Data** - Open, High, Low, Close, Volume for technical analysis
+- **Exchange Filtering** - Query specific exchanges via MIC codes (XNAS, XLON, XNYS)
+- **Smart Caching** - Data-type aware TTL (historical cached forever, EOD 24h, live 30s)
+- **Batch Operations** - Fetch 100+ symbols in one request
+- **Type-Safe API** - Full TypeScript support with discriminated unions
+- **Multi-Provider** - Automatic fallback between providers
+
+### 💰 Fundamental Data Module
+
+- **SEC EDGAR Integration** - FREE fundamental data directly from SEC filings
+- **Comprehensive Metrics** - EPS, Revenue, Assets, Liabilities, Cash Flow, and more
+- **All US Public Companies** - Complete coverage of SEC-registered companies
+- **Historical Filings** - Data back to ~2009
+- **CIK Lookup** - Automatic ticker-to-CIK mapping with smart caching
+- **Calculated Ratios** - Market Cap, P/E, P/B ratios when combined with prices
+- **No API Key Required** - Direct access to SEC's public API
+- **Rate Limit Management** - Built-in 10 req/sec rate limiting
 
 ### 🇩🇪 German Business Intelligence
 
-- **MongoDB integration** for scalable data storage
-- **Bulk JSONL import** from official German data sources
-- **Handelsregister automation** - automated document retrieval
-- **CRUD operations** with validation
-- **Streaming processing** for multi-GB datasets
+- **MongoDB Integration** - Scalable data storage for millions of records
+- **Bulk JSONL Import** - Process multi-GB datasets efficiently
+- **Handelsregister Automation** - Automated document retrieval
+- **CRUD Operations** - Full database management with validation
+- **Streaming Processing** - Handle large datasets without memory issues
 
 ## Advanced Examples
 
+### Combined Market Analysis (Unified API)
+
+Analyze multiple companies with automatic enrichment:
+
+```typescript
+import { StockDataService, YahooFinanceProvider, SecEdgarProvider } from '@fin.cx/opendata';
+
+// Setup unified service
+const stockData = new StockDataService();
+stockData.registerPriceProvider(new YahooFinanceProvider());
+stockData.registerFundamentalsProvider(new SecEdgarProvider({
+  userAgent: 'YourCompany youremail@example.com'
+}));
+
+// Analyze multiple companies with ONE call
+const tickers = ['AAPL', 'MSFT', 'GOOGL', 'AMZN'];
+const stocks = await stockData.getBatchStockData(tickers);
+
+// All metrics are automatically calculated!
+stocks.forEach(stock => {
+  if (stock.fundamentals) {
+    console.log(`\n${stock.fundamentals.companyName} (${stock.ticker})`);
+    console.log(`  Price: $${stock.price.price.toFixed(2)}`);
+    console.log(`  Market Cap: $${(stock.fundamentals.marketCap! / 1e9).toFixed(2)}B`);
+    console.log(`  P/E Ratio: ${stock.fundamentals.priceToEarnings!.toFixed(2)}`);
+    console.log(`  Revenue: $${(stock.fundamentals.revenue! / 1e9).toFixed(2)}B`);
+    console.log(`  EPS: $${stock.fundamentals.earningsPerShareDiluted!.toFixed(2)}`);
+  }
+});
+
+// Or analyze one-by-one with automatic enrichment
+for (const ticker of tickers) {
+  const stock = await stockData.getStockData(ticker);
+
+  // Everything is already enriched - no manual calculations needed!
+  console.log(`${ticker}: P/E ${stock.fundamentals?.priceToEarnings?.toFixed(2)}`);
+}
+```
+
+### Fundamental Data Screening
+
+Screen stocks by financial metrics:
+
+```typescript
+// Fetch data for multiple tickers
+const tickers = ['AAPL', 'MSFT', 'GOOGL', 'AMZN', 'META', 'NVDA', 'TSLA'];
+const stocks = await stockData.getBatchStockData(tickers);
+
+// Filter by criteria (all metrics auto-calculated!)
+const valueStocks = stocks.filter(stock => {
+  const f = stock.fundamentals;
+  return f &&
+    f.priceToEarnings! < 30 &&          // P/E under 30
+    f.priceToBook! < 10 &&              // P/B under 10
+    f.revenue! > 100_000_000_000;       // Revenue > $100B
+});
+
+console.log('\n💎 Value Stocks:');
+valueStocks.forEach(stock => {
+  console.log(`${stock.ticker}: P/E ${stock.fundamentals!.priceToEarnings!.toFixed(2)}, ` +
+              `P/B ${stock.fundamentals!.priceToBook!.toFixed(2)}`);
+});
+```
+
+### Historical Data Analysis
+
+Fetch and analyze historical price trends:
+
+```typescript
+// Get 1 year of historical data
+const history = await stockService.getData({
+  type: 'historical',
+  ticker: 'AAPL',
+  from: new Date('2024-01-01'),
+  to: new Date('2024-12-31'),
+  sort: 'DESC' // Newest first
+});
+
+// Calculate statistics
+const prices = history.map(p => p.price);
+const high52Week = Math.max(...prices);
+const low52Week = Math.min(...prices);
+const avgPrice = prices.reduce((a, b) => a + b) / prices.length;
+
+console.log(`52-Week Analysis for AAPL:`);
+console.log(`  High:    $${high52Week.toFixed(2)}`);
+console.log(`  Low:     $${low52Week.toFixed(2)}`);
+console.log(`  Average: $${avgPrice.toFixed(2)}`);
+console.log(`  Days:    ${history.length}`);
+
+// Calculate Simple Moving Average
+const calculateSMA = (data: IStockPrice[], period: number) => {
+  const sma: number[] = [];
+  for (let i = period - 1; i < data.length; i++) {
+    const sum = data.slice(i - period + 1, i + 1)
+      .reduce((acc, p) => acc + p.price, 0);
+    sma.push(sum / period);
+  }
+  return sma;
+};
+
+const sma20 = calculateSMA(history, 20);
+const sma50 = calculateSMA(history, 50);
+
+console.log(`\nMoving Averages:`);
+console.log(`  20-day SMA: $${sma20[0].toFixed(2)}`);
+console.log(`  50-day SMA: $${sma50[0].toFixed(2)}`);
+```
+
+### OHLCV Technical Analysis
+
+Use OHLCV data for technical indicators:
+
+```typescript
+const history = await stockService.getData({
+  type: 'historical',
+  ticker: 'TSLA',
+  from: new Date('2024-11-01'),
+  to: new Date('2024-11-30')
+});
+
+// Calculate daily trading range
+for (const day of history) {
+  const range = day.high! - day.low!;
+  const rangePercent = (range / day.low!) * 100;
+
+  console.log(`${day.timestamp.toISOString().split('T')[0]}:`);
+  console.log(`  Open:   $${day.open}`);
+  console.log(`  High:   $${day.high}`);
+  console.log(`  Low:    $${day.low}`);
+  console.log(`  Close:  $${day.price}`);
+  console.log(`  Volume: ${day.volume?.toLocaleString()}`);
+  console.log(`  Range:  $${range.toFixed(2)} (${rangePercent.toFixed(2)}%)`);
+}
+```
+
+### Fundamental Data Screening
+
+Screen stocks based on fundamental metrics:
+
+```typescript
+const tickers = ['AAPL', 'MSFT', 'GOOGL', 'AMZN', 'TSLA', 'META', 'NVDA'];
+
+// Fetch fundamentals for all tickers
+const allFundamentals = await fundamentalsService.getBatchFundamentals(tickers);
+
+// Get current prices
+const prices = await stockService.getData({
+  type: 'batch',
+  tickers: tickers
+});
+
+// Create price map
+const priceMap = new Map(prices.map(p => [p.ticker, p.price]));
+
+// Enrich with prices
+const enriched = await fundamentalsService.enrichBatchWithPrices(
+  allFundamentals,
+  priceMap
+);
+
+// Screen for value stocks (P/E < 25, P/B < 5)
+const valueStocks = enriched.filter(f =>
+  f.priceToEarnings && f.priceToEarnings < 25 &&
+  f.priceToBook && f.priceToBook < 5
+);
+
+console.log('Value Stocks:');
+valueStocks.forEach(stock => {
+  console.log(`\n${stock.companyName} (${stock.ticker})`);
+  console.log(`  P/E Ratio: ${stock.priceToEarnings!.toFixed(2)}`);
+  console.log(`  P/B Ratio: ${stock.priceToBook!.toFixed(2)}`);
+  console.log(`  Market Cap: $${(stock.marketCap! / 1e9).toFixed(2)}B`);
+});
+```
+
 ### Market Dashboard
 
-Create a real-time market overview:
+Create a comprehensive market overview:
 
 ```typescript
 const indicators = [
-  // Indices
-  { ticker: '^GSPC', name: 'S&P 500' },
-  { ticker: '^IXIC', name: 'NASDAQ' },
-  
-  // Tech Giants
   { ticker: 'AAPL', name: 'Apple' },
   { ticker: 'MSFT', name: 'Microsoft' },
-  
-  // Crypto
-  { ticker: 'BTC-USD', name: 'Bitcoin' },
-  { ticker: 'ETH-USD', name: 'Ethereum' },
-  
-  // Commodities
-  { ticker: 'GC=F', name: 'Gold' },
-  { ticker: 'CL=F', name: 'Oil' }
+  { ticker: 'GOOGL', name: 'Alphabet' },
+  { ticker: 'AMZN', name: 'Amazon' },
+  { ticker: 'TSLA', name: 'Tesla' }
 ];
 
-const prices = await stockService.getPrices({ 
+const prices = await stockService.getData({
+  type: 'batch',
   tickers: indicators.map(i => i.ticker)
 });
 
@@ -124,64 +383,37 @@ prices.forEach(price => {
   const color = price.change >= 0 ? '\x1b[32m' : '\x1b[31m';
 
   console.log(
-    `${indicator.name.padEnd(15)} ${price.price.toFixed(2).padStart(10)} ` +
+    `${price.companyName!.padEnd(25)} $${price.price.toFixed(2).padStart(8)} ` +
     `${color}${arrow} ${price.changePercent.toFixed(2)}%\x1b[0m`
   );
 });
 ```
 
-### Handelsregister Integration
+### Exchange-Specific Trading
 
-Automate German company data retrieval:
+Compare prices across different exchanges:
 
 ```typescript
-// Search for a company
-const results = await openData.handelsregister.searchCompany("Siemens AG");
+// Vodafone trades on both London and NYSE
+const exchanges = [
+  { mic: 'XLON', name: 'London Stock Exchange' },
+  { mic: 'XNYS', name: 'New York Stock Exchange' }
+];
 
-// Get detailed information and documents
-const details = await openData.handelsregister.getSpecificCompany({
-  court: "Munich",
-  type: "HRB",
-  number: "6684"
+for (const exchange of exchanges) {
+  try {
+    const price = await stockService.getData({
+      type: 'current',
+      ticker: 'VOD',
+      exchange: exchange.mic
     });
 
-// Downloaded files include:
-// - XML data (SI files)
-// - PDF documents (AD files)
-for (const file of details.files) {
-  await file.writeToDir('./downloads');
-}
-```
-
-### Combined Data Analysis
-
-Merge financial and business data:
-
-```typescript
-// Find all public German companies (AG)
-const publicCompanies = await openData.db
-  .collection('businessrecords')
-  .find({ legalForm: 'AG' })
-  .toArray();
-
-// Enrich with stock data
-for (const company of publicCompanies) {
-  try {
-    // Map company to ticker (custom logic needed)
-    const ticker = mapCompanyToTicker(company.data.name);
-    
-    if (ticker) {
-      const stock = await stockService.getPrice({ ticker });
-      
-      // Add financial metrics
-      company.data.stockPrice = stock.price;
-      company.data.marketCap = stock.price * getSharesOutstanding(ticker);
-      company.data.priceChange = stock.changePercent;
-      
-      await company.save();
-    }
+    console.log(`${exchange.name}:`);
+    console.log(`  Price: ${price.price} ${price.currency}`);
+    console.log(`  Volume: ${price.volume?.toLocaleString()}`);
+    console.log(`  Exchange: ${price.exchangeName}`);
   } catch (error) {
-    // Handle missing tickers gracefully
+    console.log(`${exchange.name}: Not available`);
   }
 }
 ```
@@ -192,25 +424,75 @@ for (const company of publicCompanies) {
 
 ```typescript
 const stockService = new StockPriceService({
-  ttl: 60000,         // Cache for 1 minute
-  maxEntries: 1000    // Max cached symbols
+  ttl: 60000,         // Default cache TTL in ms
+  maxEntries: 10000   // Max cached entries
 });
 
-// Provider configuration
-stockService.register(new YahooFinanceProvider(), {
+// Marketstack - EOD data (requires API key)
+stockService.register(new MarketstackProvider('YOUR_API_KEY'), {
   enabled: true,
   priority: 100,
   timeout: 10000,
   retryAttempts: 3,
   retryDelay: 1000
 });
+
+// Yahoo Finance - Real-time data (no API key)
+stockService.register(new YahooFinanceProvider(), {
+  enabled: true,
+  priority: 50
+});
 ```
 
-### MongoDB Setup
+### Fundamentals Service Options
 
-Set environment variables:
+```typescript
+const fundamentalsService = new FundamentalsService({
+  ttl: 90 * 24 * 60 * 60 * 1000,  // 90 days (quarterly refresh)
+  maxEntries: 10000
+});
+
+// SEC EDGAR provider (FREE - no API key!)
+fundamentalsService.register(new SecEdgarProvider({
+  userAgent: 'YourCompany youremail@example.com',
+  cikCacheTTL: 30 * 24 * 60 * 60 * 1000,      // 30 days
+  fundamentalsCacheTTL: 90 * 24 * 60 * 60 * 1000,  // 90 days
+  timeout: 30000
+}));
+```
+
+### Directory Configuration (German Business Data)
+
+All directory paths are mandatory when using German business data features:
+
+```typescript
+import { OpenData } from '@fin.cx/opendata';
+import * as path from 'path';
+
+// Development
+const openData = new OpenData({
+  nogitDir: path.join(process.cwd(), '.nogit'),
+  downloadDir: path.join(process.cwd(), '.nogit', 'downloads'),
+  germanBusinessDataDir: path.join(process.cwd(), '.nogit', 'germanbusinessdata')
+});
+
+// Production
+const openDataProd = new OpenData({
+  nogitDir: '/var/lib/myapp/data',
+  downloadDir: '/var/lib/myapp/data/downloads',
+  germanBusinessDataDir: '/var/lib/myapp/data/germanbusinessdata'
+});
+```
+
+### Environment Variables
+
+Set environment variables for API keys and database:
 
 ```env
+# Marketstack API (for EOD stock data)
+MARKETSTACK_COM_TOKEN=your_api_key_here
+
+# MongoDB (for German business data)
 MONGODB_URL=mongodb://localhost:27017
 MONGODB_NAME=opendata
 MONGODB_USER=myuser
@@ -219,7 +501,7 @@ MONGODB_PASS=mypass
 
 ## API Reference
 
-### Stock Types
+### Stock Price Interfaces
 
 ```typescript
 interface IStockPrice {
@@ -234,65 +516,210 @@ interface IStockPrice {
   marketState: 'PRE' | 'REGULAR' | 'POST' | 'CLOSED';
   exchange?: string;
   exchangeName?: string;
+
+  // OHLCV data
+  volume?: number;
+  open?: number;
+  high?: number;
+  low?: number;
+  adjusted?: boolean;
+  dataType: 'eod' | 'intraday' | 'live';
+  fetchedAt: Date;
+
+  // Company identification
+  companyName?: string;       // "Apple Inc"
+  companyFullName?: string;   // "Apple Inc (NASDAQ:AAPL)"
+}
+```
+
+### Fundamental Data Interfaces
+
+```typescript
+interface IStockFundamentals {
+  ticker: string;
+  cik: string;
+  companyName: string;
+  provider: string;
+  timestamp: Date;
+  fetchedAt: Date;
+
+  // Per-share metrics
+  earningsPerShareBasic?: number;
+  earningsPerShareDiluted?: number;
+  sharesOutstanding?: number;
+
+  // Income statement (annual USD)
+  revenue?: number;
+  netIncome?: number;
+  operatingIncome?: number;
+  grossProfit?: number;
+
+  // Balance sheet (annual USD)
+  assets?: number;
+  liabilities?: number;
+  stockholdersEquity?: number;
+  cash?: number;
+  propertyPlantEquipment?: number;
+
+  // Calculated metrics (requires price)
+  marketCap?: number;        // price × sharesOutstanding
+  priceToEarnings?: number;  // price / EPS
+  priceToBook?: number;      // marketCap / stockholdersEquity
+
+  // Metadata
+  fiscalYear?: string;
+  fiscalQuarter?: string;
+  filingDate?: Date;
+  form?: '10-K' | '10-Q' | string;
 }
 ```
 
 ### Key Methods
 
 **StockPriceService**
-- `getPrice(request)` - Single stock price
-- `getPrices(request)` - Batch prices
-- `register(provider)` - Add data provider
+- `getData(request)` - Unified method for all stock data (current, historical, batch)
+- `getPrice(request)` - Convenience method for single current price
+- `getPrices(request)` - Convenience method for batch current prices
+- `register(provider, config)` - Add data provider with priority and retry config
+- `checkProvidersHealth()` - Test all providers and return health status
+- `getProviderStats()` - Get success/error statistics for each provider
 - `clearCache()` - Clear price cache
+- `setCacheTTL(ttl)` - Update cache TTL dynamically
+
+**FundamentalsService**
+- `getFundamentals(ticker)` - Get fundamental data for single ticker
+- `getBatchFundamentals(tickers)` - Get fundamentals for multiple tickers
+- `enrichWithPrice(fundamentals, price)` - Calculate market cap, P/E, P/B ratios
+- `enrichBatchWithPrices(fundamentals, priceMap)` - Batch enrich with prices
+- `register(provider, config)` - Add fundamentals provider
+- `checkProvidersHealth()` - Test all providers
+- `getProviderStats()` - Get success/error statistics
+- `clearCache()` - Clear fundamentals cache
+
+**SecEdgarProvider**
+- ✅ FREE - No API key required
+- ✅ All US public companies
+- ✅ Comprehensive US GAAP financial metrics
+- ✅ Historical data back to ~2009
+- ✅ Direct access to SEC filings (10-K, 10-Q)
+- ✅ Smart caching (CIK: 30 days, Fundamentals: 90 days)
+- ✅ Rate limiting (10 requests/second)
+- ℹ️ Requires User-Agent header in format: "Company Name Email"
+
+**MarketstackProvider**
+- ✅ End-of-Day (EOD) stock prices
+- ✅ 500,000+ tickers across 72+ exchanges worldwide
+- ✅ Historical data with pagination
+- ✅ Batch fetching support
+- ✅ OHLCV data (Open, High, Low, Close, Volume)
+- ✅ Company names included automatically
+- ⚠️ Requires API key (free tier: 100 requests/month)
+
+**YahooFinanceProvider**
+- ✅ Real-time stock prices
+- ✅ No API key required
+- ✅ Global coverage
+- ✅ Company names included
+- ⚠️ Rate limits may apply
 
 **OpenData**
 - `start()` - Initialize MongoDB connection
 - `buildInitialDb()` - Import bulk data
 - `CBusinessRecord` - Business record class
-- `handelsregister` - Registry automation
+- `handelsregister` - German registry automation
 
-## Performance
+## Provider Architecture
 
-- **Batch fetching**: Get 100+ prices in <500ms
-- **Caching**: Instant repeated queries
-- **Concurrent processing**: Handle 1000+ records/second
-- **Streaming**: Process GB-sized datasets without memory issues
-
-## Extensibility
-
-The provider architecture makes it easy to add new data sources:
+Add custom data providers easily:
 
 ```typescript
 class MyCustomProvider implements IStockProvider {
   name = 'My Provider';
+  priority = 50;
+  requiresAuth = true;
+  rateLimit = { requestsPerMinute: 60 };
 
-  async fetchPrice(request: IStockQuoteRequest): Promise<IStockPrice> {
-    // Your implementation
+  async fetchData(request: IStockDataRequest): Promise<IStockPrice | IStockPrice[]> {
+    // Implement unified data fetching
+    switch (request.type) {
+      case 'current':
+        return this.fetchCurrentPrice(request);
+      case 'batch':
+        return this.fetchBatchPrices(request);
+      case 'historical':
+        return this.fetchHistoricalPrices(request);
+      default:
+        throw new Error(`Unsupported request type`);
+    }
   }
 
-  // ... other required methods
+  async isAvailable(): Promise<boolean> {
+    // Health check
+    return true;
+  }
+
+  supportsMarket(market: string): boolean {
+    return ['US', 'UK', 'DE'].includes(market);
+  }
+
+  supportsTicker(ticker: string): boolean {
+    return /^[A-Z]{1,5}$/.test(ticker);
+  }
 }
 
 stockService.register(new MyCustomProvider());
 ```
 
+## Performance
+
+- **Batch Fetching**: Get 100+ prices in one API request
+- **Smart Caching**: Data-type aware TTL (historical cached forever, EOD 24h, live 30s)
+- **Rate Limit Management**: Automatic retry logic for API limits
+- **Concurrent Processing**: Handle 1000+ records/second
+- **Streaming**: Process GB-sized datasets without memory issues
+- **Provider Fallback**: Automatic failover between data sources
+
 ## Testing
 
 Run the comprehensive test suite:
 
 ```bash
-npm test
+pnpm test
 ```
 
-View live market data:
+Test specific modules:
 
 ```bash
-npm test -- --grep "market indicators"
+# Stock price providers
+pnpm tstest test/test.marketstack.node.ts --verbose
+pnpm tstest test/test.stocks.ts --verbose
+
+# Fundamental data
+pnpm tstest test/test.secedgar.provider.node.ts --verbose
+pnpm tstest test/test.fundamentals.service.node.ts --verbose
+
+# German business data
+pnpm tstest test/test.handelsregister.ts --verbose
 ```
 
-## Contributing
+## Getting API Keys
 
-We welcome contributions! Please see our contributing guidelines for details.
+### Marketstack (EOD Stock Data)
+
+1. Visit [marketstack.com](https://marketstack.com)
+2. Sign up for a free account (100 requests/month)
+3. Get your API key from the dashboard
+4. Set environment variable: `MARKETSTACK_COM_TOKEN=your_key_here`
+
+### SEC EDGAR (Fundamental Data)
+
+**No API key required!** SEC EDGAR is completely free and public. Just provide your company name and email in the User-Agent:
+
+```typescript
+new SecEdgarProvider({
+  userAgent: 'YourCompany youremail@example.com'
+});
+```
 
 ## License and Legal Information
 

test/test.fundamentals.service.node+bun+deno.ts

@@ -0,0 +1,287 @@
+import { expect, tap } from '@git.zone/tstest/tapbundle';
+import * as opendata from '../ts/index.js';
+
+const TEST_USER_AGENT = 'fin.cx test@fin.cx';
+
+tap.test('FundamentalsService - Provider Registration', async () => {
+  const service = new opendata.FundamentalsService();
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  await tap.test('should register provider', async () => {
+    service.register(provider);
+
+    const registered = service.getProvider('SEC EDGAR');
+    expect(registered).toBeDefined();
+    expect(registered?.name).toEqual('SEC EDGAR');
+  });
+
+  await tap.test('should get all providers', async () => {
+    const providers = service.getAllProviders();
+    expect(providers.length).toBeGreaterThan(0);
+    expect(providers[0].name).toEqual('SEC EDGAR');
+  });
+
+  await tap.test('should get enabled providers', async () => {
+    const providers = service.getEnabledProviders();
+    expect(providers.length).toBeGreaterThan(0);
+  });
+
+  await tap.test('should unregister provider', async () => {
+    service.unregister('SEC EDGAR');
+
+    const registered = service.getProvider('SEC EDGAR');
+    expect(registered).toBeUndefined();
+
+    // Re-register for other tests
+    service.register(provider);
+  });
+});
+
+tap.test('FundamentalsService - Fetch Fundamentals', async () => {
+  const service = new opendata.FundamentalsService();
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  service.register(provider);
+
+  await tap.test('should fetch fundamentals for single ticker', async () => {
+    const fundamentals = await service.getFundamentals('AAPL');
+
+    expect(fundamentals).toBeDefined();
+    expect(fundamentals.ticker).toEqual('AAPL');
+    expect(fundamentals.companyName).toEqual('Apple Inc.');
+    expect(fundamentals.provider).toEqual('SEC EDGAR');
+    expect(fundamentals.earningsPerShareDiluted).toBeGreaterThan(0);
+    expect(fundamentals.sharesOutstanding).toBeGreaterThan(0);
+
+    console.log('\n📊 Fetched via Service:');
+    console.log(`  ${fundamentals.ticker}: ${fundamentals.companyName}`);
+    console.log(`  EPS: $${fundamentals.earningsPerShareDiluted?.toFixed(2)}`);
+    console.log(`  Shares: ${(fundamentals.sharesOutstanding! / 1_000_000_000).toFixed(2)}B`);
+  });
+
+  await tap.test('should fetch fundamentals for multiple tickers', async () => {
+    const fundamentalsList = await service.getBatchFundamentals(['AAPL', 'MSFT']);
+
+    expect(fundamentalsList).toBeInstanceOf(Array);
+    expect(fundamentalsList.length).toEqual(2);
+
+    const apple = fundamentalsList.find(f => f.ticker === 'AAPL');
+    const msft = fundamentalsList.find(f => f.ticker === 'MSFT');
+
+    expect(apple).toBeDefined();
+    expect(msft).toBeDefined();
+    expect(apple!.companyName).toEqual('Apple Inc.');
+    expect(msft!.companyName).toContain('Microsoft');
+
+    console.log('\n📊 Batch Fetch via Service:');
+    fundamentalsList.forEach(f => {
+      console.log(`  ${f.ticker}: ${f.companyName} - EPS: $${f.earningsPerShareDiluted?.toFixed(2)}`);
+    });
+  });
+});
+
+tap.test('FundamentalsService - Caching', async () => {
+  const service = new opendata.FundamentalsService({
+    ttl: 60000, // 60 seconds for testing
+    maxEntries: 100
+  });
+
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  service.register(provider);
+
+  await tap.test('should cache fundamentals data', async () => {
+    // Clear cache first
+    service.clearCache();
+
+    let stats = service.getCacheStats();
+    expect(stats.size).toEqual(0);
+
+    // First fetch (should hit API)
+    const start1 = Date.now();
+    await service.getFundamentals('AAPL');
+    const duration1 = Date.now() - start1;
+
+    stats = service.getCacheStats();
+    expect(stats.size).toEqual(1);
+
+    // Second fetch (should hit cache - much faster)
+    const start2 = Date.now();
+    await service.getFundamentals('AAPL');
+    const duration2 = Date.now() - start2;
+
+    expect(duration2).toBeLessThan(duration1);
+
+    console.log('\n⚡ Cache Performance:');
+    console.log(`  First fetch: ${duration1}ms`);
+    console.log(`  Cached fetch: ${duration2}ms`);
+    console.log(`  Speedup: ${Math.round(duration1 / duration2)}x`);
+  });
+
+  await tap.test('should respect cache TTL', async () => {
+    // Set very short TTL
+    service.setCacheTTL(100); // 100ms
+
+    // Fetch and cache
+    await service.getFundamentals('MSFT');
+
+    // Wait for TTL to expire
+    await new Promise(resolve => setTimeout(resolve, 150));
+
+    // This should fetch again (cache expired)
+    const stats = service.getCacheStats();
+    console.log(`\n⏱️  Cache TTL: ${stats.ttl}ms`);
+  });
+
+  await tap.test('should clear cache', async () => {
+    service.clearCache();
+
+    const stats = service.getCacheStats();
+    expect(stats.size).toEqual(0);
+  });
+});
+
+tap.test('FundamentalsService - Price Enrichment', async () => {
+  const service = new opendata.FundamentalsService();
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  service.register(provider);
+
+  await tap.test('should enrich fundamentals with price to calculate market cap', async () => {
+    const fundamentals = await service.getFundamentals('AAPL');
+
+    // Simulate current price
+    const currentPrice = 270.37;
+
+    const enriched = await service.enrichWithPrice(fundamentals, currentPrice);
+
+    expect(enriched.marketCap).toBeDefined();
+    expect(enriched.priceToEarnings).toBeDefined();
+    expect(enriched.priceToBook).toBeDefined();
+
+    expect(enriched.marketCap).toBeGreaterThan(0);
+    expect(enriched.priceToEarnings).toBeGreaterThan(0);
+
+    console.log('\n💰 Enriched with Price ($270.37):');
+    console.log(`  Market Cap: $${(enriched.marketCap! / 1_000_000_000_000).toFixed(2)}T`);
+    console.log(`  P/E Ratio: ${enriched.priceToEarnings!.toFixed(2)}`);
+    console.log(`  P/B Ratio: ${enriched.priceToBook?.toFixed(2) || 'N/A'}`);
+
+    // Verify calculations
+    const expectedMarketCap = fundamentals.sharesOutstanding! * currentPrice;
+    expect(Math.abs(enriched.marketCap! - expectedMarketCap)).toBeLessThan(1); // Allow for rounding
+
+    const expectedPE = currentPrice / fundamentals.earningsPerShareDiluted!;
+    expect(Math.abs(enriched.priceToEarnings! - expectedPE)).toBeLessThan(0.01);
+  });
+
+  await tap.test('should enrich batch fundamentals with prices', async () => {
+    const fundamentalsList = await service.getBatchFundamentals(['AAPL', 'MSFT']);
+
+    const priceMap = new Map<string, number>([
+      ['AAPL', 270.37],
+      ['MSFT', 425.50]
+    ]);
+
+    const enriched = await service.enrichBatchWithPrices(fundamentalsList, priceMap);
+
+    expect(enriched.length).toEqual(2);
+
+    const apple = enriched.find(f => f.ticker === 'AAPL')!;
+    const msft = enriched.find(f => f.ticker === 'MSFT')!;
+
+    expect(apple.marketCap).toBeGreaterThan(0);
+    expect(msft.marketCap).toBeGreaterThan(0);
+
+    console.log('\n💰 Batch Enrichment:');
+    console.log(`  AAPL: Market Cap $${(apple.marketCap! / 1_000_000_000_000).toFixed(2)}T, P/E ${apple.priceToEarnings!.toFixed(2)}`);
+    console.log(`  MSFT: Market Cap $${(msft.marketCap! / 1_000_000_000_000).toFixed(2)}T, P/E ${msft.priceToEarnings!.toFixed(2)}`);
+  });
+});
+
+tap.test('FundamentalsService - Provider Health', async () => {
+  const service = new opendata.FundamentalsService();
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  service.register(provider);
+
+  await tap.test('should check provider health', async () => {
+    const health = await service.checkProvidersHealth();
+
+    expect(health.size).toEqual(1);
+    expect(health.get('SEC EDGAR')).toBe(true);
+
+    console.log('\n💚 Provider Health:');
+    health.forEach((isHealthy, name) => {
+      console.log(`  ${name}: ${isHealthy ? '✅ Healthy' : '❌ Unhealthy'}`);
+    });
+  });
+});
+
+tap.test('FundamentalsService - Provider Statistics', async () => {
+  const service = new opendata.FundamentalsService();
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  service.register(provider);
+
+  await tap.test('should track provider statistics', async () => {
+    // Make some requests
+    await service.getFundamentals('AAPL');
+    await service.getFundamentals('MSFT');
+
+    const stats = service.getProviderStats();
+
+    expect(stats.size).toEqual(1);
+
+    const secStats = stats.get('SEC EDGAR');
+    expect(secStats).toBeDefined();
+    expect(secStats!.successCount).toBeGreaterThan(0);
+
+    console.log('\n📈 Provider Stats:');
+    console.log(`  Success Count: ${secStats!.successCount}`);
+    console.log(`  Error Count: ${secStats!.errorCount}`);
+  });
+});
+
+tap.test('FundamentalsService - Error Handling', async () => {
+  const service = new opendata.FundamentalsService();
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  service.register(provider);
+
+  await tap.test('should throw error for invalid ticker', async () => {
+    try {
+      await service.getFundamentals('INVALIDTICKER123456');
+      throw new Error('Should have thrown error');
+    } catch (error) {
+      expect(error.message).toContain('CIK not found');
+    }
+  });
+
+  await tap.test('should throw error when no providers available', async () => {
+    const emptyService = new opendata.FundamentalsService();
+
+    try {
+      await emptyService.getFundamentals('AAPL');
+      throw new Error('Should have thrown error');
+    } catch (error) {
+      expect(error.message).toContain('No fundamentals providers available');
+    }
+  });
+});
+
+export default tap.start();

test/test.handelsregister.ts

@@ -1,12 +1,24 @@
 import { expect, tap } from '@git.zone/tstest/tapbundle';
 import * as opendata from '../ts/index.js'
+import * as paths from '../ts/paths.js';
+import * as plugins from '../ts/plugins.js';
 
 import { BusinessRecord } from '../ts/classes.businessrecord.js';
 
+// Test configuration - explicit paths required
+const testNogitDir = plugins.path.join(paths.packageDir, '.nogit');
+const testDownloadDir = plugins.path.join(testNogitDir, 'downloads');
+const testGermanBusinessDataDir = plugins.path.join(testNogitDir, 'germanbusinessdata');
+const testOutputDir = plugins.path.join(testNogitDir, 'testoutput');
+
 let testOpenDataInstance: opendata.OpenData;
 
 tap.test('first test', async () => {
-  testOpenDataInstance = new opendata.OpenData();
+  testOpenDataInstance = new opendata.OpenData({
+    nogitDir: testNogitDir,
+    downloadDir: testDownloadDir,
+    germanBusinessDataDir: testGermanBusinessDataDir
+  });
   expect(testOpenDataInstance).toBeInstanceOf(opendata.OpenData);
 });
 
@@ -28,7 +40,7 @@ tap.test('should get the data for a specific company', async () => {
   console.log(result);
 
   await Promise.all(result.files.map(async (file) => {
-    await file.writeToDir('./.nogit/testoutput');
+    await file.writeToDir(testOutputDir);
   }));
 
 

test/test.marketstack.node+bun+deno.ts

@@ -0,0 +1,572 @@
+import { expect, tap } from '@git.zone/tstest/tapbundle';
+import * as opendata from '../ts/index.js';
+import * as paths from '../ts/paths.js';
+import * as plugins from '../ts/plugins.js';
+
+// Test configuration - explicit paths required
+const testNogitDir = plugins.path.join(paths.packageDir, '.nogit');
+
+// Test data
+const testTickers = ['AAPL', 'MSFT', 'GOOGL'];
+const invalidTicker = 'INVALID_TICKER_XYZ';
+
+let stockService: opendata.StockPriceService;
+let marketstackProvider: opendata.MarketstackProvider;
+let testQenv: plugins.qenv.Qenv;
+
+tap.test('should create StockPriceService instance', async () => {
+  stockService = new opendata.StockPriceService({
+    ttl: 30000, // 30 seconds cache
+    maxEntries: 100
+  });
+  expect(stockService).toBeInstanceOf(opendata.StockPriceService);
+});
+
+tap.test('should create MarketstackProvider instance', async () => {
+  try {
+    // Create qenv and get API key
+    testQenv = new plugins.qenv.Qenv(paths.packageDir, testNogitDir);
+    const apiKey = await testQenv.getEnvVarOnDemand('MARKETSTACK_COM_TOKEN');
+
+    marketstackProvider = new opendata.MarketstackProvider(apiKey, {
+      enabled: true,
+      timeout: 10000,
+      retryAttempts: 2,
+      retryDelay: 500
+    });
+    expect(marketstackProvider).toBeInstanceOf(opendata.MarketstackProvider);
+    expect(marketstackProvider.name).toEqual('Marketstack');
+    expect(marketstackProvider.requiresAuth).toEqual(true);
+    expect(marketstackProvider.priority).toEqual(80);
+  } catch (error) {
+    if (error.message.includes('MARKETSTACK_COM_TOKEN')) {
+      console.log('⚠️  MARKETSTACK_COM_TOKEN not set - skipping Marketstack tests');
+      tap.test('Marketstack token not available', async () => {
+        expect(true).toEqual(true); // Skip gracefully
+      });
+      return;
+    }
+    throw error;
+  }
+});
+
+tap.test('should register Marketstack provider with the service', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  stockService.register(marketstackProvider);
+  const providers = stockService.getAllProviders();
+  expect(providers).toContainEqual(marketstackProvider);
+  expect(stockService.getProvider('Marketstack')).toEqual(marketstackProvider);
+});
+
+tap.test('should check provider health', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  const health = await stockService.checkProvidersHealth();
+  expect(health.get('Marketstack')).toEqual(true);
+});
+
+tap.test('should fetch single stock price', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  const price = await stockService.getPrice({ ticker: 'AAPL' });
+
+  expect(price).toHaveProperty('ticker');
+  expect(price).toHaveProperty('price');
+  expect(price).toHaveProperty('currency');
+  expect(price).toHaveProperty('change');
+  expect(price).toHaveProperty('changePercent');
+  expect(price).toHaveProperty('previousClose');
+  expect(price).toHaveProperty('timestamp');
+  expect(price).toHaveProperty('provider');
+  expect(price).toHaveProperty('marketState');
+
+  expect(price.ticker).toEqual('AAPL');
+  expect(price.price).toBeGreaterThan(0);
+  expect(price.provider).toEqual('Marketstack');
+  expect(price.timestamp).toBeInstanceOf(Date);
+  expect(price.marketState).toEqual('CLOSED'); // EOD data
+
+  console.log(`✓ Fetched AAPL: $${price.price} (${price.changePercent >= 0 ? '+' : ''}${price.changePercent.toFixed(2)}%)`);
+});
+
+tap.test('should fetch multiple stock prices', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  const prices = await stockService.getPrices({
+    tickers: testTickers
+  });
+
+  expect(prices).toBeArray();
+  expect(prices.length).toBeGreaterThan(0);
+  expect(prices.length).toBeLessThanOrEqual(testTickers.length);
+
+  for (const price of prices) {
+    expect(testTickers).toContain(price.ticker);
+    expect(price.price).toBeGreaterThan(0);
+    expect(price.provider).toEqual('Marketstack');
+    expect(price.marketState).toEqual('CLOSED');
+    console.log(`  ${price.ticker}: $${price.price}`);
+  }
+});
+
+tap.test('should serve cached prices on subsequent requests', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  // First request - should hit the API
+  const firstRequest = await stockService.getPrice({ ticker: 'AAPL' });
+
+  // Second request - should be served from cache
+  const secondRequest = await stockService.getPrice({ ticker: 'AAPL' });
+
+  expect(secondRequest.ticker).toEqual(firstRequest.ticker);
+  expect(secondRequest.price).toEqual(firstRequest.price);
+  expect(secondRequest.timestamp).toEqual(firstRequest.timestamp);
+
+  console.log('✓ Cache working correctly');
+});
+
+tap.test('should handle invalid ticker gracefully', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  try {
+    await stockService.getPrice({ ticker: invalidTicker });
+    throw new Error('Should have thrown an error for invalid ticker');
+  } catch (error) {
+    expect(error.message).toInclude('Failed to fetch');
+    console.log('✓ Invalid ticker handled correctly');
+  }
+});
+
+tap.test('should support market checking', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  expect(marketstackProvider.supportsMarket('US')).toEqual(true);
+  expect(marketstackProvider.supportsMarket('UK')).toEqual(true);
+  expect(marketstackProvider.supportsMarket('DE')).toEqual(true);
+  expect(marketstackProvider.supportsMarket('JP')).toEqual(true);
+  expect(marketstackProvider.supportsMarket('INVALID')).toEqual(false);
+
+  console.log('✓ Market support check working');
+});
+
+tap.test('should validate ticker format', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  expect(marketstackProvider.supportsTicker('AAPL')).toEqual(true);
+  expect(marketstackProvider.supportsTicker('MSFT')).toEqual(true);
+  expect(marketstackProvider.supportsTicker('BRK.B')).toEqual(true);
+  expect(marketstackProvider.supportsTicker('123456789012')).toEqual(false);
+  expect(marketstackProvider.supportsTicker('invalid@ticker')).toEqual(false);
+
+  console.log('✓ Ticker validation working');
+});
+
+tap.test('should get provider statistics', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  const stats = stockService.getProviderStats();
+  const marketstackStats = stats.get('Marketstack');
+
+  expect(marketstackStats).not.toEqual(undefined);
+  expect(marketstackStats.successCount).toBeGreaterThan(0);
+  expect(marketstackStats.errorCount).toBeGreaterThanOrEqual(0);
+
+  console.log(`✓ Provider stats: ${marketstackStats.successCount} successes, ${marketstackStats.errorCount} errors`);
+});
+
+tap.test('should test direct provider methods', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  console.log('\n🔍 Testing direct provider methods:');
+
+  // Test isAvailable
+  const available = await marketstackProvider.isAvailable();
+  expect(available).toEqual(true);
+  console.log('  ✓ isAvailable() returned true');
+
+  // Test fetchData for single ticker
+  const price = await marketstackProvider.fetchData({ type: 'current', ticker: 'MSFT' }) as opendata.IStockPrice;
+  expect(price.ticker).toEqual('MSFT');
+  expect(price.provider).toEqual('Marketstack');
+  expect(price.price).toBeGreaterThan(0);
+  console.log(`  ✓ fetchData (current) for MSFT: $${price.price}`);
+
+  // Test fetchData for batch
+  const prices = await marketstackProvider.fetchData({
+    type: 'batch',
+    tickers: ['AAPL', 'GOOGL']
+  }) as opendata.IStockPrice[];
+  expect(prices.length).toBeGreaterThan(0);
+  console.log(`  ✓ fetchData (batch) returned ${prices.length} prices`);
+
+  for (const p of prices) {
+    console.log(`    ${p.ticker}: $${p.price}`);
+  }
+});
+
+tap.test('should fetch sample EOD data', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  console.log('\n📊 Sample EOD Stock Data from Marketstack:');
+  console.log('═'.repeat(65));
+
+  const sampleTickers = [
+    { ticker: 'AAPL', name: 'Apple Inc.' },
+    { ticker: 'MSFT', name: 'Microsoft Corp.' },
+    { ticker: 'GOOGL', name: 'Alphabet Inc.' },
+    { ticker: 'AMZN', name: 'Amazon.com Inc.' },
+    { ticker: 'TSLA', name: 'Tesla Inc.' }
+  ];
+
+  try {
+    const prices = await marketstackProvider.fetchData({
+      type: 'batch',
+      tickers: sampleTickers.map(t => t.ticker)
+    }) as opendata.IStockPrice[];
+
+    const priceMap = new Map(prices.map(p => [p.ticker, p]));
+
+    for (const stock of sampleTickers) {
+      const price = priceMap.get(stock.ticker);
+      if (price) {
+        const changeSymbol = price.change >= 0 ? '↑' : '↓';
+        const changeColor = price.change >= 0 ? '\x1b[32m' : '\x1b[31m';
+        const resetColor = '\x1b[0m';
+
+        console.log(
+          `${stock.name.padEnd(20)} ${price.price.toLocaleString('en-US', {
+            minimumFractionDigits: 2,
+            maximumFractionDigits: 2
+          }).padStart(10)} ${changeColor}${changeSymbol} ${price.change >= 0 ? '+' : ''}${price.change.toFixed(2)} (${price.changePercent >= 0 ? '+' : ''}${price.changePercent.toFixed(2)}%)${resetColor}`
+        );
+      }
+    }
+
+    console.log('═'.repeat(65));
+    console.log(`Provider: Marketstack (EOD Data)`);
+    console.log(`Last updated: ${new Date().toLocaleString()}\n`);
+  } catch (error) {
+    console.log('Error fetching sample data:', error.message);
+  }
+
+  expect(true).toEqual(true);
+});
+
+tap.test('should clear cache', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  // Ensure we have something in cache
+  await stockService.getPrice({ ticker: 'AAPL' });
+
+  // Clear cache
+  stockService.clearCache();
+  console.log('✓ Cache cleared');
+
+  // Next request should hit the API again
+  const price = await stockService.getPrice({ ticker: 'AAPL' });
+  expect(price).not.toEqual(undefined);
+});
+
+// Phase 1 Feature Tests
+
+tap.test('should fetch data using new unified API (current price)', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  console.log('\n🎯 Testing Phase 1: Unified getData API');
+
+  const price = await stockService.getData({
+    type: 'current',
+    ticker: 'MSFT'
+  });
+
+  expect(price).not.toEqual(undefined);
+  expect((price as opendata.IStockPrice).ticker).toEqual('MSFT');
+  expect((price as opendata.IStockPrice).dataType).toEqual('eod');
+  expect((price as opendata.IStockPrice).fetchedAt).toBeInstanceOf(Date);
+
+  console.log(`✓ Fetched current price: $${(price as opendata.IStockPrice).price}`);
+});
+
+tap.test('should fetch historical data with date range', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  console.log('\n📅 Testing Phase 1: Historical Data Retrieval');
+
+  const fromDate = new Date('2024-12-01');
+  const toDate = new Date('2024-12-31');
+
+  const prices = await stockService.getData({
+    type: 'historical',
+    ticker: 'AAPL',
+    from: fromDate,
+    to: toDate,
+    sort: 'DESC'
+  });
+
+  expect(prices).toBeArray();
+  expect((prices as opendata.IStockPrice[]).length).toBeGreaterThan(0);
+
+  console.log(`✓ Fetched ${(prices as opendata.IStockPrice[]).length} historical prices`);
+
+  // Verify all data types are 'eod'
+  for (const price of (prices as opendata.IStockPrice[])) {
+    expect(price.dataType).toEqual('eod');
+    expect(price.ticker).toEqual('AAPL');
+  }
+
+  console.log('✓ All prices have correct dataType');
+});
+
+tap.test('should include OHLCV data in responses', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  console.log('\n📊 Testing Phase 1: OHLCV Data');
+
+  const price = await stockService.getData({
+    type: 'current',
+    ticker: 'GOOGL'
+  });
+
+  const stockPrice = price as opendata.IStockPrice;
+
+  // Verify OHLCV fields are present
+  expect(stockPrice.open).not.toEqual(undefined);
+  expect(stockPrice.high).not.toEqual(undefined);
+  expect(stockPrice.low).not.toEqual(undefined);
+  expect(stockPrice.price).not.toEqual(undefined); // close
+  expect(stockPrice.volume).not.toEqual(undefined);
+
+  console.log(`✓ OHLCV Data:`);
+  console.log(`  Open:   $${stockPrice.open}`);
+  console.log(`  High:   $${stockPrice.high}`);
+  console.log(`  Low:    $${stockPrice.low}`);
+  console.log(`  Close:  $${stockPrice.price}`);
+  console.log(`  Volume: ${stockPrice.volume?.toLocaleString()}`);
+});
+
+tap.test('should support exchange filtering', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  console.log('\n🌍 Testing Phase 1: Exchange Filtering');
+
+  // Note: This test may fail if the exchange doesn't have data for the ticker
+  // In production, you'd test with tickers known to exist on specific exchanges
+  try {
+    const price = await stockService.getData({
+      type: 'current',
+      ticker: 'AAPL',
+      exchange: 'XNAS' // NASDAQ
+    });
+
+    expect(price).not.toEqual(undefined);
+    console.log(`✓ Successfully filtered by exchange: ${(price as opendata.IStockPrice).exchange}`);
+  } catch (error) {
+    console.log('⚠️  Exchange filtering test inconclusive (may need tier upgrade)');
+    expect(true).toEqual(true); // Don't fail test
+  }
+});
+
+tap.test('should verify smart caching with historical data', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  console.log('\n💾 Testing Phase 1: Smart Caching');
+
+  const fromDate = new Date('2024-11-01');
+  const toDate = new Date('2024-11-30');
+
+  // First request - should hit API
+  const start1 = Date.now();
+  const prices1 = await stockService.getData({
+    type: 'historical',
+    ticker: 'TSLA',
+    from: fromDate,
+    to: toDate
+  });
+  const duration1 = Date.now() - start1;
+
+  // Second request - should be cached (historical data cached forever)
+  const start2 = Date.now();
+  const prices2 = await stockService.getData({
+    type: 'historical',
+    ticker: 'TSLA',
+    from: fromDate,
+    to: toDate
+  });
+  const duration2 = Date.now() - start2;
+
+  expect((prices1 as opendata.IStockPrice[]).length).toEqual((prices2 as opendata.IStockPrice[]).length);
+  expect(duration2).toBeLessThan(duration1); // Cached should be much faster
+
+  console.log(`✓ First request:  ${duration1}ms (API call)`);
+  console.log(`✓ Second request: ${duration2}ms (cached)`);
+  console.log(`✓ Speed improvement: ${Math.round((duration1 / duration2) * 10) / 10}x faster`);
+});
+
+// Company Name Feature Tests
+
+tap.test('should include company name in single price request', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  console.log('\n🏢 Testing Company Name Feature: Single Request');
+
+  const price = await stockService.getPrice({ ticker: 'AAPL' });
+
+  expect(price.companyName).not.toEqual(undefined);
+  expect(typeof price.companyName).toEqual('string');
+  expect(price.companyName).toInclude('Apple');
+
+  console.log(`✓ Company name retrieved: "${price.companyName}"`);
+  console.log(`  Ticker: ${price.ticker}`);
+  console.log(`  Price: $${price.price}`);
+  console.log(`  Company: ${price.companyName}`);
+});
+
+tap.test('should include company names in batch price request', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  console.log('\n🏢 Testing Company Name Feature: Batch Request');
+
+  const prices = await stockService.getPrices({
+    tickers: ['AAPL', 'MSFT', 'GOOGL']
+  });
+
+  expect(prices).toBeArray();
+  expect(prices.length).toBeGreaterThan(0);
+
+  console.log(`✓ Fetched ${prices.length} prices with company names:`);
+
+  for (const price of prices) {
+    expect(price.companyName).not.toEqual(undefined);
+    expect(typeof price.companyName).toEqual('string');
+    console.log(`  ${price.ticker.padEnd(6)} - ${price.companyName}`);
+  }
+});
+
+tap.test('should include company name in historical data', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  console.log('\n🏢 Testing Company Name Feature: Historical Data');
+
+  const prices = await stockService.getData({
+    type: 'historical',
+    ticker: 'TSLA',
+    from: new Date('2025-10-01'),
+    to: new Date('2025-10-05')
+  });
+
+  expect(prices).toBeArray();
+  const historicalPrices = prices as opendata.IStockPrice[];
+  expect(historicalPrices.length).toBeGreaterThan(0);
+
+  // All historical records should have the same company name
+  for (const price of historicalPrices) {
+    expect(price.companyName).not.toEqual(undefined);
+    expect(typeof price.companyName).toEqual('string');
+  }
+
+  const firstPrice = historicalPrices[0];
+  console.log(`✓ Historical records include company name: "${firstPrice.companyName}"`);
+  console.log(`  Ticker: ${firstPrice.ticker}`);
+  console.log(`  Records: ${historicalPrices.length}`);
+  console.log(`  Date range: ${historicalPrices[historicalPrices.length - 1].timestamp.toISOString().split('T')[0]} to ${firstPrice.timestamp.toISOString().split('T')[0]}`);
+});
+
+tap.test('should verify company name is included with zero extra API calls', async () => {
+  if (!marketstackProvider) {
+    console.log('⚠️  Skipping - Marketstack provider not initialized');
+    return;
+  }
+
+  console.log('\n⚡ Testing Company Name Efficiency: Zero Extra API Calls');
+
+  // Clear cache to ensure we're making fresh API calls
+  stockService.clearCache();
+
+  // Single request timing
+  const start1 = Date.now();
+  const singlePrice = await stockService.getPrice({ ticker: 'AMZN' });
+  const duration1 = Date.now() - start1;
+
+  expect(singlePrice.companyName).not.toEqual(undefined);
+
+  // Batch request timing
+  stockService.clearCache();
+  const start2 = Date.now();
+  const batchPrices = await stockService.getPrices({ tickers: ['NVDA', 'AMD', 'INTC'] });
+  const duration2 = Date.now() - start2;
+
+  for (const price of batchPrices) {
+    expect(price.companyName).not.toEqual(undefined);
+  }
+
+  console.log(`✓ Single request (with company name): ${duration1}ms`);
+  console.log(`✓ Batch request (with company names): ${duration2}ms`);
+  console.log(`✓ Company names included in standard EOD response - zero extra calls!`);
+  console.log(`  Single: ${singlePrice.ticker} - "${singlePrice.companyName}"`);
+  for (const price of batchPrices) {
+    console.log(`  Batch:  ${price.ticker} - "${price.companyName}"`);
+  }
+});
+
+export default tap.start();

test/test.secedgar.provider.node+bun+deno.ts

@@ -0,0 +1,261 @@
+import { expect, tap } from '@git.zone/tstest/tapbundle';
+import * as opendata from '../ts/index.js';
+
+// Test configuration
+const TEST_USER_AGENT = 'fin.cx test@fin.cx';
+const TEST_TICKER = 'AAPL'; // Apple Inc - well-known test case
+const RATE_LIMIT_DELAY = 150; // 150ms between requests (< 10 req/sec)
+
+tap.test('SEC EDGAR Provider - Constructor', async () => {
+  await tap.test('should create provider with valid User-Agent', async () => {
+    const provider = new opendata.SecEdgarProvider({
+      userAgent: TEST_USER_AGENT
+    });
+
+    expect(provider.name).toEqual('SEC EDGAR');
+    expect(provider.priority).toEqual(100);
+    expect(provider.requiresAuth).toBe(false);
+    expect(provider.rateLimit?.requestsPerMinute).toEqual(600);
+  });
+
+  await tap.test('should throw error if User-Agent is missing', async () => {
+    expect(() => {
+      new opendata.SecEdgarProvider({
+        userAgent: ''
+      });
+    }).toThrow('User-Agent is required');
+  });
+
+  await tap.test('should throw error if User-Agent format is invalid', async () => {
+    expect(() => {
+      new opendata.SecEdgarProvider({
+        userAgent: 'InvalidFormat'
+      });
+    }).toThrow('Invalid User-Agent format');
+  });
+
+  await tap.test('should accept valid User-Agent with space and email', async () => {
+    const provider = new opendata.SecEdgarProvider({
+      userAgent: 'MyCompany contact@example.com'
+    });
+
+    expect(provider).toBeInstanceOf(opendata.SecEdgarProvider);
+  });
+});
+
+tap.test('SEC EDGAR Provider - Availability', async () => {
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  await tap.test('should report as available', async () => {
+    const isAvailable = await provider.isAvailable();
+    expect(isAvailable).toBe(true);
+  });
+});
+
+tap.test('SEC EDGAR Provider - Fetch Fundamentals', async () => {
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT,
+    timeout: 30000
+  });
+
+  await tap.test('should fetch fundamentals for Apple (AAPL)', async () => {
+    const fundamentals = await provider.fetchData({
+      type: 'fundamentals-current',
+      ticker: TEST_TICKER
+    });
+
+    // Verify structure
+    expect(fundamentals).toBeDefined();
+    expect(fundamentals).not.toBeInstanceOf(Array);
+
+    const data = fundamentals as opendata.IStockFundamentals;
+
+    // Basic fields
+    expect(data.ticker).toEqual('AAPL');
+    expect(data.cik).toBeDefined();
+    expect(data.companyName).toEqual('Apple Inc.');
+    expect(data.provider).toEqual('SEC EDGAR');
+    expect(data.timestamp).toBeInstanceOf(Date);
+    expect(data.fetchedAt).toBeInstanceOf(Date);
+
+    // Financial metrics (Apple should have all of these)
+    expect(data.earningsPerShareDiluted).toBeDefined();
+    expect(data.earningsPerShareDiluted).toBeGreaterThan(0);
+
+    expect(data.sharesOutstanding).toBeDefined();
+    expect(data.sharesOutstanding).toBeGreaterThan(0);
+
+    expect(data.revenue).toBeDefined();
+    expect(data.revenue).toBeGreaterThan(0);
+
+    expect(data.netIncome).toBeDefined();
+    expect(data.assets).toBeDefined();
+    expect(data.assets).toBeGreaterThan(0);
+
+    expect(data.liabilities).toBeDefined();
+    expect(data.stockholdersEquity).toBeDefined();
+
+    // Metadata
+    expect(data.fiscalYear).toBeDefined();
+
+    console.log('\n📊 Sample Apple Fundamentals:');
+    console.log(`  Company: ${data.companyName} (CIK: ${data.cik})`);
+    console.log(`  EPS (Diluted): $${data.earningsPerShareDiluted?.toFixed(2)}`);
+    console.log(`  Shares Outstanding: ${(data.sharesOutstanding! / 1_000_000_000).toFixed(2)}B`);
+    console.log(`  Revenue: $${(data.revenue! / 1_000_000_000).toFixed(2)}B`);
+    console.log(`  Net Income: $${(data.netIncome! / 1_000_000_000).toFixed(2)}B`);
+    console.log(`  Assets: $${(data.assets! / 1_000_000_000).toFixed(2)}B`);
+    console.log(`  Fiscal Year: ${data.fiscalYear}`);
+  });
+
+  await tap.test('should throw error for invalid ticker', async () => {
+    try {
+      await provider.fetchData({
+        type: 'fundamentals-current',
+        ticker: 'INVALIDTICKER123456'
+      });
+      throw new Error('Should have thrown error');
+    } catch (error) {
+      expect(error.message).toContain('CIK not found');
+    }
+  });
+});
+
+tap.test('SEC EDGAR Provider - Batch Fetch', async () => {
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT,
+    timeout: 30000
+  });
+
+  await tap.test('should fetch fundamentals for multiple tickers', async () => {
+    const result = await provider.fetchData({
+      type: 'fundamentals-batch',
+      tickers: ['AAPL', 'MSFT']
+    });
+
+    expect(result).toBeInstanceOf(Array);
+
+    const fundamentalsList = result as opendata.IStockFundamentals[];
+    expect(fundamentalsList.length).toEqual(2);
+
+    // Check Apple
+    const apple = fundamentalsList.find(f => f.ticker === 'AAPL');
+    expect(apple).toBeDefined();
+    expect(apple!.companyName).toEqual('Apple Inc.');
+    expect(apple!.earningsPerShareDiluted).toBeGreaterThan(0);
+
+    // Check Microsoft
+    const microsoft = fundamentalsList.find(f => f.ticker === 'MSFT');
+    expect(microsoft).toBeDefined();
+    expect(microsoft!.companyName).toContain('Microsoft');
+    expect(microsoft!.earningsPerShareDiluted).toBeGreaterThan(0);
+
+    console.log('\n📊 Batch Fetch Results:');
+    fundamentalsList.forEach(f => {
+      console.log(`  ${f.ticker}: ${f.companyName} - EPS: $${f.earningsPerShareDiluted?.toFixed(2)}`);
+    });
+  });
+});
+
+tap.test('SEC EDGAR Provider - CIK Caching', async () => {
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  await tap.test('should cache CIK lookups', async () => {
+    // Clear cache first
+    provider.clearCache();
+
+    let stats = provider.getCacheStats();
+    expect(stats.cikCacheSize).toEqual(0);
+
+    // First fetch (should populate cache)
+    await provider.fetchData({
+      type: 'fundamentals-current',
+      ticker: 'AAPL'
+    });
+
+    stats = provider.getCacheStats();
+    expect(stats.cikCacheSize).toBeGreaterThan(0);
+
+    console.log(`\n💾 CIK Cache: ${stats.cikCacheSize} entries`);
+  });
+
+  await tap.test('should clear cache', async () => {
+    provider.clearCache();
+
+    const stats = provider.getCacheStats();
+    expect(stats.cikCacheSize).toEqual(0);
+    expect(stats.hasTickerList).toBe(false);
+  });
+});
+
+tap.test('SEC EDGAR Provider - Rate Limiting', async () => {
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  await tap.test('should handle multiple rapid requests without exceeding rate limit', async () => {
+    // Make 5 requests in succession
+    // Rate limiter should ensure we don't exceed 10 req/sec
+    const tickers = ['AAPL', 'MSFT', 'GOOGL', 'AMZN', 'META'];
+    const startTime = Date.now();
+
+    const promises = tickers.map(ticker =>
+      provider.fetchData({
+        type: 'fundamentals-current',
+        ticker
+      })
+    );
+
+    const results = await Promise.all(promises);
+    const duration = Date.now() - startTime;
+
+    expect(results.length).toEqual(5);
+    console.log(`\n⏱️  5 requests completed in ${duration}ms (avg: ${Math.round(duration / 5)}ms/request)`);
+
+    // Verify all results are valid
+    results.forEach((result, index) => {
+      expect(result).toBeDefined();
+      const data = result as opendata.IStockFundamentals;
+      expect(data.ticker).toEqual(tickers[index]);
+      expect(data.earningsPerShareDiluted).toBeGreaterThan(0);
+    });
+  });
+});
+
+tap.test('SEC EDGAR Provider - Market Cap Calculation', async () => {
+  const provider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  await tap.test('should provide data needed for market cap calculation', async () => {
+    const fundamentals = await provider.fetchData({
+      type: 'fundamentals-current',
+      ticker: 'AAPL'
+    }) as opendata.IStockFundamentals;
+
+    expect(fundamentals.sharesOutstanding).toBeDefined();
+    expect(fundamentals.earningsPerShareDiluted).toBeDefined();
+
+    // Simulate current price (in real usage, this comes from price provider)
+    const simulatedPrice = 270.37;
+
+    // Calculate market cap
+    const marketCap = fundamentals.sharesOutstanding! * simulatedPrice;
+    const pe = simulatedPrice / fundamentals.earningsPerShareDiluted!;
+
+    console.log('\n💰 Calculated Metrics (with simulated price $270.37):');
+    console.log(`  Shares Outstanding: ${(fundamentals.sharesOutstanding! / 1_000_000_000).toFixed(2)}B`);
+    console.log(`  Market Cap: $${(marketCap / 1_000_000_000_000).toFixed(2)}T`);
+    console.log(`  EPS: $${fundamentals.earningsPerShareDiluted!.toFixed(2)}`);
+    console.log(`  P/E Ratio: ${pe.toFixed(2)}`);
+
+    expect(marketCap).toBeGreaterThan(0);
+    expect(pe).toBeGreaterThan(0);
+  });
+});
+
+export default tap.start();

test/test.stockdata.service.node+bun+deno.ts

@@ -0,0 +1,418 @@
+import { expect, tap } from '@git.zone/tstest/tapbundle';
+import * as opendata from '../ts/index.js';
+
+const TEST_USER_AGENT = 'fin.cx test@fin.cx';
+
+tap.test('StockDataService - Basic Setup', async () => {
+  await tap.test('should create StockDataService instance', async () => {
+    const service = new opendata.StockDataService({
+      cache: {
+        priceTTL: 60000, // 1 minute for testing
+        fundamentalsTTL: 120000, // 2 minutes for testing
+        maxEntries: 100
+      }
+    });
+
+    expect(service).toBeInstanceOf(opendata.StockDataService);
+
+    const stats = service.getCacheStats();
+    expect(stats.priceCache.ttl).toEqual(60000);
+    expect(stats.fundamentalsCache.ttl).toEqual(120000);
+    expect(stats.maxEntries).toEqual(100);
+  });
+});
+
+tap.test('StockDataService - Provider Registration', async () => {
+  const service = new opendata.StockDataService();
+
+  await tap.test('should register price provider', async () => {
+    const yahooProvider = new opendata.YahooFinanceProvider();
+    service.registerPriceProvider(yahooProvider);
+
+    const providers = service.getPriceProviders();
+    expect(providers.length).toEqual(1);
+    expect(providers[0].name).toEqual('Yahoo Finance');
+  });
+
+  await tap.test('should register fundamentals provider', async () => {
+    const secProvider = new opendata.SecEdgarProvider({
+      userAgent: TEST_USER_AGENT
+    });
+    service.registerFundamentalsProvider(secProvider);
+
+    const providers = service.getFundamentalsProviders();
+    expect(providers.length).toEqual(1);
+    expect(providers[0].name).toEqual('SEC EDGAR');
+  });
+
+  await tap.test('should unregister providers', async () => {
+    service.unregisterPriceProvider('Yahoo Finance');
+    service.unregisterFundamentalsProvider('SEC EDGAR');
+
+    expect(service.getPriceProviders().length).toEqual(0);
+    expect(service.getFundamentalsProviders().length).toEqual(0);
+  });
+});
+
+tap.test('StockDataService - Price Fetching', async () => {
+  const service = new opendata.StockDataService();
+  const yahooProvider = new opendata.YahooFinanceProvider();
+  service.registerPriceProvider(yahooProvider);
+
+  await tap.test('should fetch single price', async () => {
+    const price = await service.getPrice('AAPL');
+
+    expect(price).toBeDefined();
+    expect(price.ticker).toEqual('AAPL');
+    expect(price.price).toBeGreaterThan(0);
+    expect(price.provider).toEqual('Yahoo Finance');
+    expect(price.timestamp).toBeInstanceOf(Date);
+
+    console.log(`\n💵 Single Price: ${price.ticker} = $${price.price.toFixed(2)}`);
+  });
+
+  await tap.test('should fetch batch prices', async () => {
+    const prices = await service.getPrices(['AAPL', 'MSFT', 'GOOGL']);
+
+    expect(prices).toBeInstanceOf(Array);
+    expect(prices.length).toBeGreaterThan(0);
+    expect(prices.length).toBeLessThanOrEqual(3);
+
+    console.log('\n💵 Batch Prices:');
+    prices.forEach(p => {
+      console.log(`  ${p.ticker}: $${p.price.toFixed(2)}`);
+    });
+  });
+
+  await tap.test('should cache prices', async () => {
+    // Clear cache
+    service.clearCache();
+
+    const stats1 = service.getCacheStats();
+    expect(stats1.priceCache.size).toEqual(0);
+
+    // Fetch price (should hit API)
+    const start1 = Date.now();
+    await service.getPrice('AAPL');
+    const duration1 = Date.now() - start1;
+
+    const stats2 = service.getCacheStats();
+    expect(stats2.priceCache.size).toEqual(1);
+
+    // Fetch again (should hit cache - much faster)
+    const start2 = Date.now();
+    await service.getPrice('AAPL');
+    const duration2 = Date.now() - start2;
+
+    expect(duration2).toBeLessThan(duration1);
+
+    console.log('\n⚡ Cache Performance:');
+    console.log(`  First fetch: ${duration1}ms`);
+    console.log(`  Cached fetch: ${duration2}ms`);
+    console.log(`  Speedup: ${Math.round(duration1 / duration2)}x`);
+  });
+});
+
+tap.test('StockDataService - Fundamentals Fetching', async () => {
+  const service = new opendata.StockDataService();
+  const secProvider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+  service.registerFundamentalsProvider(secProvider);
+
+  await tap.test('should fetch single fundamentals', async () => {
+    const fundamentals = await service.getFundamentals('AAPL');
+
+    expect(fundamentals).toBeDefined();
+    expect(fundamentals.ticker).toEqual('AAPL');
+    expect(fundamentals.companyName).toEqual('Apple Inc.');
+    expect(fundamentals.provider).toEqual('SEC EDGAR');
+    expect(fundamentals.earningsPerShareDiluted).toBeGreaterThan(0);
+    expect(fundamentals.sharesOutstanding).toBeGreaterThan(0);
+
+    console.log('\n📊 Single Fundamentals:');
+    console.log(`  ${fundamentals.ticker}: ${fundamentals.companyName}`);
+    console.log(`  EPS: $${fundamentals.earningsPerShareDiluted?.toFixed(2)}`);
+    console.log(`  Shares: ${(fundamentals.sharesOutstanding! / 1_000_000_000).toFixed(2)}B`);
+  });
+
+  await tap.test('should fetch batch fundamentals', async () => {
+    const fundamentals = await service.getBatchFundamentals(['AAPL', 'MSFT']);
+
+    expect(fundamentals).toBeInstanceOf(Array);
+    expect(fundamentals.length).toEqual(2);
+
+    console.log('\n📊 Batch Fundamentals:');
+    fundamentals.forEach(f => {
+      console.log(`  ${f.ticker}: ${f.companyName} - EPS: $${f.earningsPerShareDiluted?.toFixed(2)}`);
+    });
+  });
+
+  await tap.test('should cache fundamentals', async () => {
+    // Clear cache
+    service.clearCache();
+
+    const stats1 = service.getCacheStats();
+    expect(stats1.fundamentalsCache.size).toEqual(0);
+
+    // Fetch fundamentals (should hit API)
+    await service.getFundamentals('AAPL');
+
+    const stats2 = service.getCacheStats();
+    expect(stats2.fundamentalsCache.size).toEqual(1);
+  });
+});
+
+tap.test('StockDataService - Complete Stock Data', async () => {
+  const service = new opendata.StockDataService();
+
+  // Register both providers
+  const yahooProvider = new opendata.YahooFinanceProvider();
+  const secProvider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  service.registerPriceProvider(yahooProvider);
+  service.registerFundamentalsProvider(secProvider);
+
+  await tap.test('should fetch complete stock data with string', async () => {
+    const data = await service.getStockData('AAPL');
+
+    expect(data).toBeDefined();
+    expect(data.ticker).toEqual('AAPL');
+    expect(data.price).toBeDefined();
+    expect(data.price.ticker).toEqual('AAPL');
+    expect(data.fundamentals).toBeDefined();
+    expect(data.fundamentals?.ticker).toEqual('AAPL');
+    expect(data.fetchedAt).toBeInstanceOf(Date);
+
+    // Check automatic enrichment
+    expect(data.fundamentals?.marketCap).toBeDefined();
+    expect(data.fundamentals?.priceToEarnings).toBeDefined();
+    expect(data.fundamentals?.marketCap).toBeGreaterThan(0);
+    expect(data.fundamentals?.priceToEarnings).toBeGreaterThan(0);
+
+    console.log('\n✨ Complete Stock Data (Auto-Enriched):');
+    console.log(`  ${data.ticker}: ${data.fundamentals?.companyName}`);
+    console.log(`  Price: $${data.price.price.toFixed(2)}`);
+    console.log(`  Market Cap: $${(data.fundamentals!.marketCap! / 1_000_000_000_000).toFixed(2)}T`);
+    console.log(`  P/E Ratio: ${data.fundamentals!.priceToEarnings!.toFixed(2)}`);
+  });
+
+  await tap.test('should fetch complete stock data with request object', async () => {
+    const data = await service.getStockData({
+      ticker: 'MSFT',
+      includeFundamentals: true,
+      enrichFundamentals: true
+    });
+
+    expect(data).toBeDefined();
+    expect(data.ticker).toEqual('MSFT');
+    expect(data.price).toBeDefined();
+    expect(data.fundamentals).toBeDefined();
+    expect(data.fundamentals?.marketCap).toBeDefined();
+    expect(data.fundamentals?.priceToEarnings).toBeDefined();
+  });
+
+  await tap.test('should fetch complete stock data without fundamentals', async () => {
+    const data = await service.getStockData({
+      ticker: 'GOOGL',
+      includeFundamentals: false
+    });
+
+    expect(data).toBeDefined();
+    expect(data.ticker).toEqual('GOOGL');
+    expect(data.price).toBeDefined();
+    expect(data.fundamentals).toBeUndefined();
+  });
+
+  await tap.test('should handle fundamentals fetch failure gracefully', async () => {
+    // Try a ticker that might not have fundamentals
+    const data = await service.getStockData({
+      ticker: 'BTC-USD', // Crypto - no SEC filings
+      includeFundamentals: true
+    });
+
+    expect(data).toBeDefined();
+    expect(data.price).toBeDefined();
+    // Fundamentals might be undefined due to error
+    console.log(`\n⚠️  ${data.ticker} - Price available, Fundamentals: ${data.fundamentals ? 'Yes' : 'No'}`);
+  });
+});
+
+tap.test('StockDataService - Batch Complete Stock Data', async () => {
+  const service = new opendata.StockDataService();
+
+  const yahooProvider = new opendata.YahooFinanceProvider();
+  const secProvider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  service.registerPriceProvider(yahooProvider);
+  service.registerFundamentalsProvider(secProvider);
+
+  await tap.test('should fetch batch complete data with array', async () => {
+    const data = await service.getBatchStockData(['AAPL', 'MSFT']);
+
+    expect(data).toBeInstanceOf(Array);
+    expect(data.length).toEqual(2);
+
+    data.forEach(stock => {
+      expect(stock.ticker).toBeDefined();
+      expect(stock.price).toBeDefined();
+      expect(stock.fundamentals).toBeDefined();
+      expect(stock.fundamentals?.marketCap).toBeGreaterThan(0);
+      expect(stock.fundamentals?.priceToEarnings).toBeGreaterThan(0);
+    });
+
+    console.log('\n✨ Batch Complete Data:');
+    data.forEach(stock => {
+      console.log(`  ${stock.ticker}: Price $${stock.price.price.toFixed(2)}, P/E ${stock.fundamentals!.priceToEarnings!.toFixed(2)}`);
+    });
+  });
+
+  await tap.test('should fetch batch complete data with request object', async () => {
+    const data = await service.getBatchStockData({
+      tickers: ['AAPL', 'GOOGL'],
+      includeFundamentals: true,
+      enrichFundamentals: true
+    });
+
+    expect(data).toBeInstanceOf(Array);
+    expect(data.length).toEqual(2);
+
+    data.forEach(stock => {
+      expect(stock.fundamentals?.marketCap).toBeGreaterThan(0);
+    });
+  });
+
+  await tap.test('should fetch batch without enrichment', async () => {
+    const data = await service.getBatchStockData({
+      tickers: ['AAPL', 'MSFT'],
+      includeFundamentals: true,
+      enrichFundamentals: false
+    });
+
+    expect(data).toBeInstanceOf(Array);
+
+    // Check that fundamentals exist but enrichment might not be complete
+    data.forEach(stock => {
+      if (stock.fundamentals) {
+        expect(stock.fundamentals.ticker).toBeDefined();
+        expect(stock.fundamentals.companyName).toBeDefined();
+      }
+    });
+  });
+});
+
+tap.test('StockDataService - Health & Statistics', async () => {
+  const service = new opendata.StockDataService();
+
+  const yahooProvider = new opendata.YahooFinanceProvider();
+  const secProvider = new opendata.SecEdgarProvider({
+    userAgent: TEST_USER_AGENT
+  });
+
+  service.registerPriceProvider(yahooProvider);
+  service.registerFundamentalsProvider(secProvider);
+
+  await tap.test('should check providers health', async () => {
+    const health = await service.checkProvidersHealth();
+
+    expect(health.size).toEqual(2);
+    expect(health.get('Yahoo Finance (price)')).toBe(true);
+    expect(health.get('SEC EDGAR (fundamentals)')).toBe(true);
+
+    console.log('\n💚 Provider Health:');
+    health.forEach((isHealthy, name) => {
+      console.log(`  ${name}: ${isHealthy ? '✅ Healthy' : '❌ Unhealthy'}`);
+    });
+  });
+
+  await tap.test('should track provider statistics', async () => {
+    // Make some requests to generate stats
+    await service.getPrice('AAPL');
+    await service.getFundamentals('AAPL');
+
+    const stats = service.getProviderStats();
+
+    expect(stats.size).toEqual(2);
+
+    const yahooStats = stats.get('Yahoo Finance');
+    expect(yahooStats).toBeDefined();
+    expect(yahooStats!.type).toEqual('price');
+    expect(yahooStats!.successCount).toBeGreaterThan(0);
+
+    const secStats = stats.get('SEC EDGAR');
+    expect(secStats).toBeDefined();
+    expect(secStats!.type).toEqual('fundamentals');
+    expect(secStats!.successCount).toBeGreaterThan(0);
+
+    console.log('\n📈 Provider Statistics:');
+    stats.forEach((stat, name) => {
+      console.log(`  ${name} (${stat.type}): Success=${stat.successCount}, Errors=${stat.errorCount}`);
+    });
+  });
+
+  await tap.test('should clear all caches', async () => {
+    service.clearCache();
+
+    const stats = service.getCacheStats();
+    expect(stats.priceCache.size).toEqual(0);
+    expect(stats.fundamentalsCache.size).toEqual(0);
+  });
+});
+
+tap.test('StockDataService - Error Handling', async () => {
+  await tap.test('should throw error when no price provider available', async () => {
+    const service = new opendata.StockDataService();
+
+    try {
+      await service.getPrice('AAPL');
+      throw new Error('Should have thrown error');
+    } catch (error) {
+      expect(error.message).toContain('No price providers available');
+    }
+  });
+
+  await tap.test('should throw error when no fundamentals provider available', async () => {
+    const service = new opendata.StockDataService();
+
+    try {
+      await service.getFundamentals('AAPL');
+      throw new Error('Should have thrown error');
+    } catch (error) {
+      expect(error.message).toContain('No fundamentals providers available');
+    }
+  });
+
+  await tap.test('should handle invalid ticker for price', async () => {
+    const service = new opendata.StockDataService();
+    const yahooProvider = new opendata.YahooFinanceProvider();
+    service.registerPriceProvider(yahooProvider);
+
+    try {
+      await service.getPrice('INVALIDTICKER123456');
+      throw new Error('Should have thrown error');
+    } catch (error) {
+      expect(error.message).toContain('Failed to fetch price');
+    }
+  });
+
+  await tap.test('should handle invalid ticker for fundamentals', async () => {
+    const service = new opendata.StockDataService();
+    const secProvider = new opendata.SecEdgarProvider({
+      userAgent: TEST_USER_AGENT
+    });
+    service.registerFundamentalsProvider(secProvider);
+
+    try {
+      await service.getFundamentals('INVALIDTICKER123456');
+      throw new Error('Should have thrown error');
+    } catch (error) {
+      expect(error.message).toContain('CIK not found');
+    }
+  });
+});
+
+export default tap.start();

test/test.ts

@@ -1,12 +1,23 @@
 import { expect, tap } from '@git.zone/tstest/tapbundle';
 import * as opendata from '../ts/index.js'
+import * as paths from '../ts/paths.js';
+import * as plugins from '../ts/plugins.js';
 
 import { BusinessRecord } from '../ts/classes.businessrecord.js';
 
+// Test configuration - explicit paths required
+const testNogitDir = plugins.path.join(paths.packageDir, '.nogit');
+const testDownloadDir = plugins.path.join(testNogitDir, 'downloads');
+const testGermanBusinessDataDir = plugins.path.join(testNogitDir, 'germanbusinessdata');
+
 let testOpenDataInstance: opendata.OpenData;
 
 tap.test('first test', async () => {
-  testOpenDataInstance = new opendata.OpenData();
+  testOpenDataInstance = new opendata.OpenData({
+    nogitDir: testNogitDir,
+    downloadDir: testDownloadDir,
+    germanBusinessDataDir: testGermanBusinessDataDir
+  });
   expect(testOpenDataInstance).toBeInstanceOf(opendata.OpenData);
 });
 

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@fin.cx/opendata',
-  version: '1.6.0',
+  version: '3.2.1',
   description: 'A comprehensive TypeScript library for accessing business data and real-time financial information. Features include German company data management with MongoDB integration, JSONL bulk processing, automated Handelsregister interactions, and real-time stock market data from multiple providers.'
 }

ts/classes.handelsregister.ts

@@ -1,7 +1,6 @@
 import type { BusinessRecord } from './classes.businessrecord.js';
 import type { OpenData } from './classes.main.opendata.js';
 import * as plugins from './plugins.js';
-import * as paths from './paths.js';
 
 /**
  * the HandlesRegister exposed as a class
@@ -9,13 +8,16 @@ import * as paths from './paths.js';
 export class HandelsRegister {
   private openDataRef: OpenData;
   private asyncExecutionStack = new plugins.lik.AsyncExecutionStack();
-  private uniqueDowloadFolder = plugins.path.join(paths.downloadDir, plugins.smartunique.uniSimple()); 
+  private downloadDir: string;
+  private uniqueDowloadFolder: string;
 
   // Puppeteer wrapper instance
   public smartbrowserInstance = new plugins.smartbrowser.SmartBrowser();
 
-  constructor(openDataRef: OpenData) {
+  constructor(openDataRef: OpenData, downloadDirArg: string) {
     this.openDataRef = openDataRef;
+    this.downloadDir = downloadDirArg;
+    this.uniqueDowloadFolder = plugins.path.join(this.downloadDir, plugins.smartunique.uniSimple());
   }
 
   public async start() {
@@ -76,7 +78,7 @@ export class HandelsRegister {
         timeout: 30000,
       })
       .catch(async (err) => {
-        await pageArg.screenshot({ path: paths.downloadDir + '/error.png' });
+        await pageArg.screenshot({ path: this.downloadDir + '/error.png' });
         throw err;
       });
 

ts/classes.jsonldata.ts

@@ -1,5 +1,4 @@
 import * as plugins from './plugins.js';
-import * as paths from './paths.js';
 import type { OpenData } from './classes.main.opendata.js';
 
 export type SeedEntryType = {
@@ -41,8 +40,11 @@ export type SeedEntryType = {
 };
 
 export class JsonlDataProcessor<T> {
+  private germanBusinessDataDir: string;
   public forEachFunction: (entryArg: T) => Promise<void>;
-  constructor(forEachFunctionArg: typeof this.forEachFunction) {
+
+  constructor(germanBusinessDataDirArg: string, forEachFunctionArg: typeof this.forEachFunction) {
+    this.germanBusinessDataDir = germanBusinessDataDirArg;
     this.forEachFunction = forEachFunctionArg;
   }
 
@@ -51,9 +53,9 @@ export class JsonlDataProcessor<T> {
     dataUrlArg = 'https://daten.offeneregister.de/de_companies_ocdata.jsonl.bz2'
   ) {
     const done = plugins.smartpromise.defer();
-    const dataExists = await plugins.smartfile.fs.isDirectory(paths.germanBusinessDataDir);
+    const dataExists = await plugins.smartfile.fs.isDirectory(this.germanBusinessDataDir);
     if (!dataExists) {
-      await plugins.smartfile.fs.ensureDir(paths.germanBusinessDataDir);
+      await plugins.smartfile.fs.ensureDir(this.germanBusinessDataDir);
     } else {
     }
 

ts/classes.main.opendata.ts

@@ -4,16 +4,39 @@ import { JsonlDataProcessor, type SeedEntryType } from './classes.jsonldata.js';
 import * as paths from './paths.js';
 import * as plugins from './plugins.js';
 
+export interface IOpenDataConfig {
+  downloadDir: string;
+  germanBusinessDataDir: string;
+  nogitDir: string;
+}
+
 export class OpenData {
   public db: plugins.smartdata.SmartdataDb;
-  private serviceQenv = new plugins.qenv.Qenv(paths.packageDir, paths.nogitDir);
+  private serviceQenv: plugins.qenv.Qenv;
+  private config: IOpenDataConfig;
 
   public jsonLDataProcessor: JsonlDataProcessor<SeedEntryType>;
   public handelsregister: HandelsRegister;
 
   public CBusinessRecord = plugins.smartdata.setDefaultManagerForDoc(this, BusinessRecord);
 
+  constructor(configArg: IOpenDataConfig) {
+    if (!configArg) {
+      throw new Error('@fin.cx/opendata: Configuration is required. You must provide downloadDir, germanBusinessDataDir, and nogitDir paths.');
+    }
+    if (!configArg.downloadDir || !configArg.germanBusinessDataDir || !configArg.nogitDir) {
+      throw new Error('@fin.cx/opendata: All directory paths are required (downloadDir, germanBusinessDataDir, nogitDir).');
+    }
+    this.config = configArg;
+    this.serviceQenv = new plugins.qenv.Qenv(paths.packageDir, this.config.nogitDir);
+  }
+
   public async start() {
+    // Ensure configured directories exist
+    await plugins.smartfile.fs.ensureDir(this.config.nogitDir);
+    await plugins.smartfile.fs.ensureDir(this.config.downloadDir);
+    await plugins.smartfile.fs.ensureDir(this.config.germanBusinessDataDir);
+
     this.db = new plugins.smartdata.SmartdataDb({
       mongoDbUrl: await this.serviceQenv.getEnvVarOnDemand('MONGODB_URL'),
       mongoDbName: await this.serviceQenv.getEnvVarOnDemand('MONGODB_NAME'),
@@ -21,7 +44,9 @@ export class OpenData {
       mongoDbPass: await this.serviceQenv.getEnvVarOnDemand('MONGODB_PASS'),
     });
     await this.db.init();
-    this.jsonLDataProcessor = new JsonlDataProcessor(async (entryArg) => {
+    this.jsonLDataProcessor = new JsonlDataProcessor(
+      this.config.germanBusinessDataDir,
+      async (entryArg) => {
         const businessRecord = new this.CBusinessRecord();
         businessRecord.id = await this.CBusinessRecord.getNewId();
         businessRecord.data.name = entryArg.name;
@@ -31,8 +56,9 @@ export class OpenData {
           type: entryArg.all_attributes._registerArt as 'HRA' | 'HRB',
         };
         await businessRecord.save();
-    });
-    this.handelsregister = new HandelsRegister(this);
+      }
+    );
+    this.handelsregister = new HandelsRegister(this, this.config.downloadDir);
     await this.handelsregister.start();
   }
 

ts/paths.ts

@@ -4,12 +4,3 @@ export const packageDir = plugins.path.join(
   plugins.smartpath.get.dirnameFromImportMetaUrl(import.meta.url),
   '../'
 );
-
-export const nogitDir = plugins.path.join(packageDir, './.nogit/');
-plugins.smartfile.fs.ensureDirSync(nogitDir);
-
-export const downloadDir = plugins.path.join(nogitDir, 'downloads');
-plugins.smartfile.fs.ensureDirSync(downloadDir);
-
-
-export const germanBusinessDataDir = plugins.path.join(nogitDir, 'germanbusinessdata');

ts/plugins.ts

@@ -1,5 +1,5 @@
 // node native scope
-import * as path from 'path';
+import * as path from 'node:path';
 
 export {
   path,

ts/stocks/classes.baseproviderservice.ts

@@ -0,0 +1,296 @@
+import * as plugins from '../plugins.js';
+
+/**
+ * Base provider entry for tracking provider state
+ */
+export interface IBaseProviderEntry<TProvider> {
+  provider: TProvider;
+  config: IBaseProviderConfig;
+  lastError?: Error;
+  lastErrorTime?: Date;
+  successCount: number;
+  errorCount: number;
+}
+
+/**
+ * Base provider configuration
+ */
+export interface IBaseProviderConfig {
+  enabled: boolean;
+  priority: number;
+  timeout?: number;
+  retryAttempts?: number;
+  retryDelay?: number;
+  cacheTTL?: number;
+}
+
+/**
+ * Base provider interface
+ */
+export interface IBaseProvider {
+  name: string;
+  priority: number;
+  isAvailable(): Promise<boolean>;
+  readonly requiresAuth: boolean;
+  readonly rateLimit?: {
+    requestsPerMinute: number;
+    requestsPerDay?: number;
+  };
+}
+
+/**
+ * Cache entry for any data type
+ */
+export interface IBaseCacheEntry<TData> {
+  data: TData;
+  timestamp: Date;
+  ttl: number;
+}
+
+/**
+ * Base service for managing data providers with caching
+ * Shared logic extracted from StockPriceService and FundamentalsService
+ */
+export abstract class BaseProviderService<TProvider extends IBaseProvider, TData> {
+  protected providers = new Map<string, IBaseProviderEntry<TProvider>>();
+  protected cache = new Map<string, IBaseCacheEntry<TData>>();
+  protected logger = console;
+
+  protected cacheConfig = {
+    ttl: 60000, // Default 60 seconds
+    maxEntries: 10000
+  };
+
+  constructor(cacheConfig?: { ttl?: number; maxEntries?: number }) {
+    if (cacheConfig) {
+      this.cacheConfig = { ...this.cacheConfig, ...cacheConfig };
+    }
+  }
+
+  /**
+   * Register a provider
+   */
+  public register(provider: TProvider, config?: Partial<IBaseProviderConfig>): void {
+    const defaultConfig: IBaseProviderConfig = {
+      enabled: true,
+      priority: provider.priority,
+      timeout: 30000,
+      retryAttempts: 2,
+      retryDelay: 1000,
+      cacheTTL: this.cacheConfig.ttl
+    };
+
+    const mergedConfig = { ...defaultConfig, ...config };
+
+    this.providers.set(provider.name, {
+      provider,
+      config: mergedConfig,
+      successCount: 0,
+      errorCount: 0
+    });
+
+    console.log(`Registered provider: ${provider.name}`);
+  }
+
+  /**
+   * Unregister a provider
+   */
+  public unregister(providerName: string): void {
+    this.providers.delete(providerName);
+    console.log(`Unregistered provider: ${providerName}`);
+  }
+
+  /**
+   * Get a specific provider by name
+   */
+  public getProvider(name: string): TProvider | undefined {
+    return this.providers.get(name)?.provider;
+  }
+
+  /**
+   * Get all registered providers
+   */
+  public getAllProviders(): TProvider[] {
+    return Array.from(this.providers.values()).map(entry => entry.provider);
+  }
+
+  /**
+   * Get enabled providers sorted by priority
+   */
+  public getEnabledProviders(): TProvider[] {
+    return Array.from(this.providers.values())
+      .filter(entry => entry.config.enabled)
+      .sort((a, b) => (b.config.priority || 0) - (a.config.priority || 0))
+      .map(entry => entry.provider);
+  }
+
+  /**
+   * Check health of all providers
+   */
+  public async checkProvidersHealth(): Promise<Map<string, boolean>> {
+    const health = new Map<string, boolean>();
+
+    for (const [name, entry] of this.providers) {
+      if (!entry.config.enabled) {
+        health.set(name, false);
+        continue;
+      }
+
+      try {
+        const isAvailable = await entry.provider.isAvailable();
+        health.set(name, isAvailable);
+      } catch (error) {
+        health.set(name, false);
+        console.error(`Health check failed for ${name}:`, error);
+      }
+    }
+
+    return health;
+  }
+
+  /**
+   * Get provider statistics
+   */
+  public getProviderStats(): Map<
+    string,
+    {
+      successCount: number;
+      errorCount: number;
+      lastError?: string;
+      lastErrorTime?: Date;
+    }
+  > {
+    const stats = new Map();
+
+    for (const [name, entry] of this.providers) {
+      stats.set(name, {
+        successCount: entry.successCount,
+        errorCount: entry.errorCount,
+        lastError: entry.lastError?.message,
+        lastErrorTime: entry.lastErrorTime
+      });
+    }
+
+    return stats;
+  }
+
+  /**
+   * Clear all cached data
+   */
+  public clearCache(): void {
+    this.cache.clear();
+    console.log('Cache cleared');
+  }
+
+  /**
+   * Set cache TTL
+   */
+  public setCacheTTL(ttl: number): void {
+    this.cacheConfig.ttl = ttl;
+    console.log(`Cache TTL set to ${ttl}ms`);
+  }
+
+  /**
+   * Get cache statistics
+   */
+  public getCacheStats(): {
+    size: number;
+    maxEntries: number;
+    ttl: number;
+  } {
+    return {
+      size: this.cache.size,
+      maxEntries: this.cacheConfig.maxEntries,
+      ttl: this.cacheConfig.ttl
+    };
+  }
+
+  /**
+   * Fetch with retry logic
+   */
+  protected async fetchWithRetry<T>(
+    fetchFn: () => Promise<T>,
+    config: IBaseProviderConfig
+  ): Promise<T> {
+    const maxAttempts = config.retryAttempts || 1;
+    let lastError: Error | undefined;
+
+    for (let attempt = 1; attempt <= maxAttempts; attempt++) {
+      try {
+        return await fetchFn();
+      } catch (error) {
+        lastError = error as Error;
+
+        if (attempt < maxAttempts) {
+          const delay = (config.retryDelay || 1000) * attempt;
+          console.log(`Retry attempt ${attempt} after ${delay}ms`);
+          await plugins.smartdelay.delayFor(delay);
+        }
+      }
+    }
+
+    throw lastError || new Error('Unknown error during fetch');
+  }
+
+  /**
+   * Get from cache if not expired
+   */
+  protected getFromCache(key: string): TData | null {
+    const entry = this.cache.get(key);
+
+    if (!entry) {
+      return null;
+    }
+
+    // Check if cache entry has expired
+    const age = Date.now() - entry.timestamp.getTime();
+    if (entry.ttl !== Infinity && age > entry.ttl) {
+      this.cache.delete(key);
+      return null;
+    }
+
+    return entry.data;
+  }
+
+  /**
+   * Add to cache with TTL
+   */
+  protected addToCache(key: string, data: TData, ttl?: number): void {
+    // Enforce max entries limit
+    if (this.cache.size >= this.cacheConfig.maxEntries) {
+      // Remove oldest entry
+      const oldestKey = this.cache.keys().next().value;
+      if (oldestKey) {
+        this.cache.delete(oldestKey);
+      }
+    }
+
+    this.cache.set(key, {
+      data,
+      timestamp: new Date(),
+      ttl: ttl || this.cacheConfig.ttl
+    });
+  }
+
+  /**
+   * Track successful fetch for provider
+   */
+  protected trackSuccess(providerName: string): void {
+    const entry = this.providers.get(providerName);
+    if (entry) {
+      entry.successCount++;
+    }
+  }
+
+  /**
+   * Track failed fetch for provider
+   */
+  protected trackError(providerName: string, error: Error): void {
+    const entry = this.providers.get(providerName);
+    if (entry) {
+      entry.errorCount++;
+      entry.lastError = error;
+      entry.lastErrorTime = new Date();
+    }
+  }
+}

ts/stocks/classes.fundamentalsservice.ts

@@ -0,0 +1,404 @@
+import * as plugins from '../plugins.js';
+import type {
+  IFundamentalsProvider,
+  IFundamentalsProviderConfig,
+  IFundamentalsProviderRegistry,
+  IStockFundamentals,
+  IFundamentalsRequest
+} from './interfaces/fundamentals.js';
+
+interface IProviderEntry {
+  provider: IFundamentalsProvider;
+  config: IFundamentalsProviderConfig;
+  lastError?: Error;
+  lastErrorTime?: Date;
+  successCount: number;
+  errorCount: number;
+}
+
+interface ICacheEntry {
+  fundamentals: IStockFundamentals | IStockFundamentals[];
+  timestamp: Date;
+  ttl: number;
+}
+
+/**
+ * Service for managing fundamental data providers and caching
+ * Parallel to StockPriceService but for fundamental data instead of prices
+ */
+export class FundamentalsService implements IFundamentalsProviderRegistry {
+  private providers = new Map<string, IProviderEntry>();
+  private cache = new Map<string, ICacheEntry>();
+  private logger = console;
+
+  private cacheConfig = {
+    ttl: 90 * 24 * 60 * 60 * 1000, // 90 days default (fundamentals change quarterly)
+    maxEntries: 10000
+  };
+
+  constructor(cacheConfig?: { ttl?: number; maxEntries?: number }) {
+    if (cacheConfig) {
+      this.cacheConfig = { ...this.cacheConfig, ...cacheConfig };
+    }
+  }
+
+  /**
+   * Register a fundamentals provider
+   */
+  public register(provider: IFundamentalsProvider, config?: IFundamentalsProviderConfig): void {
+    const defaultConfig: IFundamentalsProviderConfig = {
+      enabled: true,
+      priority: provider.priority,
+      timeout: 30000, // Longer timeout for fundamental data
+      retryAttempts: 2,
+      retryDelay: 1000,
+      cacheTTL: this.cacheConfig.ttl
+    };
+
+    const mergedConfig = { ...defaultConfig, ...config };
+
+    this.providers.set(provider.name, {
+      provider,
+      config: mergedConfig,
+      successCount: 0,
+      errorCount: 0
+    });
+
+    console.log(`Registered fundamentals provider: ${provider.name}`);
+  }
+
+  /**
+   * Unregister a provider
+   */
+  public unregister(providerName: string): void {
+    this.providers.delete(providerName);
+    console.log(`Unregistered fundamentals provider: ${providerName}`);
+  }
+
+  /**
+   * Get a specific provider by name
+   */
+  public getProvider(name: string): IFundamentalsProvider | undefined {
+    return this.providers.get(name)?.provider;
+  }
+
+  /**
+   * Get all registered providers
+   */
+  public getAllProviders(): IFundamentalsProvider[] {
+    return Array.from(this.providers.values()).map(entry => entry.provider);
+  }
+
+  /**
+   * Get enabled providers sorted by priority
+   */
+  public getEnabledProviders(): IFundamentalsProvider[] {
+    return Array.from(this.providers.values())
+      .filter(entry => entry.config.enabled)
+      .sort((a, b) => (b.config.priority || 0) - (a.config.priority || 0))
+      .map(entry => entry.provider);
+  }
+
+  /**
+   * Get fundamental data for a single ticker
+   */
+  public async getFundamentals(ticker: string): Promise<IStockFundamentals> {
+    const result = await this.getData({
+      type: 'fundamentals-current',
+      ticker
+    });
+    return result as IStockFundamentals;
+  }
+
+  /**
+   * Get fundamental data for multiple tickers
+   */
+  public async getBatchFundamentals(tickers: string[]): Promise<IStockFundamentals[]> {
+    const result = await this.getData({
+      type: 'fundamentals-batch',
+      tickers
+    });
+    return result as IStockFundamentals[];
+  }
+
+  /**
+   * Unified data fetching method
+   */
+  public async getData(
+    request: IFundamentalsRequest
+  ): Promise<IStockFundamentals | IStockFundamentals[]> {
+    const cacheKey = this.getCacheKey(request);
+    const cached = this.getFromCache(cacheKey);
+
+    if (cached) {
+      console.log(`Cache hit for ${this.getRequestDescription(request)}`);
+      return cached;
+    }
+
+    const providers = this.getEnabledProviders();
+    if (providers.length === 0) {
+      throw new Error('No fundamentals providers available');
+    }
+
+    let lastError: Error | undefined;
+
+    for (const provider of providers) {
+      const entry = this.providers.get(provider.name)!;
+
+      try {
+        const result = await this.fetchWithRetry(
+          () => provider.fetchData(request),
+          entry.config
+        );
+
+        entry.successCount++;
+
+        // Use provider-specific cache TTL or default
+        const ttl = entry.config.cacheTTL || this.cacheConfig.ttl;
+        this.addToCache(cacheKey, result, ttl);
+
+        console.log(`Successfully fetched ${this.getRequestDescription(request)} from ${provider.name}`);
+        return result;
+      } catch (error) {
+        entry.errorCount++;
+        entry.lastError = error as Error;
+        entry.lastErrorTime = new Date();
+        lastError = error as Error;
+
+        console.warn(
+          `Provider ${provider.name} failed for ${this.getRequestDescription(request)}: ${error.message}`
+        );
+      }
+    }
+
+    throw new Error(
+      `Failed to fetch ${this.getRequestDescription(request)} from all providers. Last error: ${lastError?.message}`
+    );
+  }
+
+  /**
+   * Enrich fundamentals with calculated metrics using current price
+   */
+  public async enrichWithPrice(
+    fundamentals: IStockFundamentals,
+    price: number
+  ): Promise<IStockFundamentals> {
+    const enriched = { ...fundamentals };
+
+    // Calculate market cap: price × shares outstanding
+    if (fundamentals.sharesOutstanding) {
+      enriched.marketCap = price * fundamentals.sharesOutstanding;
+    }
+
+    // Calculate P/E ratio: price / EPS
+    if (fundamentals.earningsPerShareDiluted && fundamentals.earningsPerShareDiluted > 0) {
+      enriched.priceToEarnings = price / fundamentals.earningsPerShareDiluted;
+    }
+
+    // Calculate price-to-book: market cap / stockholders equity
+    if (enriched.marketCap && fundamentals.stockholdersEquity && fundamentals.stockholdersEquity > 0) {
+      enriched.priceToBook = enriched.marketCap / fundamentals.stockholdersEquity;
+    }
+
+    return enriched;
+  }
+
+  /**
+   * Enrich batch fundamentals with prices
+   */
+  public async enrichBatchWithPrices(
+    fundamentalsList: IStockFundamentals[],
+    priceMap: Map<string, number>
+  ): Promise<IStockFundamentals[]> {
+    return Promise.all(
+      fundamentalsList.map(fundamentals => {
+        const price = priceMap.get(fundamentals.ticker);
+        if (price) {
+          return this.enrichWithPrice(fundamentals, price);
+        }
+        return Promise.resolve(fundamentals);
+      })
+    );
+  }
+
+  /**
+   * Check health of all providers
+   */
+  public async checkProvidersHealth(): Promise<Map<string, boolean>> {
+    const health = new Map<string, boolean>();
+
+    for (const [name, entry] of this.providers) {
+      if (!entry.config.enabled) {
+        health.set(name, false);
+        continue;
+      }
+
+      try {
+        const isAvailable = await entry.provider.isAvailable();
+        health.set(name, isAvailable);
+      } catch (error) {
+        health.set(name, false);
+        console.error(`Health check failed for ${name}:`, error);
+      }
+    }
+
+    return health;
+  }
+
+  /**
+   * Get provider statistics
+   */
+  public getProviderStats(): Map<
+    string,
+    {
+      successCount: number;
+      errorCount: number;
+      lastError?: string;
+      lastErrorTime?: Date;
+    }
+  > {
+    const stats = new Map();
+
+    for (const [name, entry] of this.providers) {
+      stats.set(name, {
+        successCount: entry.successCount,
+        errorCount: entry.errorCount,
+        lastError: entry.lastError?.message,
+        lastErrorTime: entry.lastErrorTime
+      });
+    }
+
+    return stats;
+  }
+
+  /**
+   * Clear all cached data
+   */
+  public clearCache(): void {
+    this.cache.clear();
+    console.log('Fundamentals cache cleared');
+  }
+
+  /**
+   * Set cache TTL
+   */
+  public setCacheTTL(ttl: number): void {
+    this.cacheConfig.ttl = ttl;
+    console.log(`Fundamentals cache TTL set to ${ttl}ms`);
+  }
+
+  /**
+   * Get cache statistics
+   */
+  public getCacheStats(): {
+    size: number;
+    maxEntries: number;
+    ttl: number;
+  } {
+    return {
+      size: this.cache.size,
+      maxEntries: this.cacheConfig.maxEntries,
+      ttl: this.cacheConfig.ttl
+    };
+  }
+
+  /**
+   * Fetch with retry logic
+   */
+  private async fetchWithRetry<T>(
+    fetchFn: () => Promise<T>,
+    config: IFundamentalsProviderConfig
+  ): Promise<T> {
+    const maxAttempts = config.retryAttempts || 1;
+    let lastError: Error | undefined;
+
+    for (let attempt = 1; attempt <= maxAttempts; attempt++) {
+      try {
+        return await fetchFn();
+      } catch (error) {
+        lastError = error as Error;
+
+        if (attempt < maxAttempts) {
+          const delay = (config.retryDelay || 1000) * attempt;
+          console.log(`Retry attempt ${attempt} after ${delay}ms`);
+          await plugins.smartdelay.delayFor(delay);
+        }
+      }
+    }
+
+    throw lastError || new Error('Unknown error during fetch');
+  }
+
+  /**
+   * Generate cache key for request
+   */
+  private getCacheKey(request: IFundamentalsRequest): string {
+    switch (request.type) {
+      case 'fundamentals-current':
+        return `fundamentals:${request.ticker}`;
+      case 'fundamentals-batch':
+        const tickers = request.tickers.sort().join(',');
+        return `fundamentals-batch:${tickers}`;
+      default:
+        return `unknown:${JSON.stringify(request)}`;
+    }
+  }
+
+  /**
+   * Get from cache if not expired
+   */
+  private getFromCache(key: string): IStockFundamentals | IStockFundamentals[] | null {
+    const entry = this.cache.get(key);
+
+    if (!entry) {
+      return null;
+    }
+
+    // Check if cache entry has expired
+    const age = Date.now() - entry.timestamp.getTime();
+    if (entry.ttl !== Infinity && age > entry.ttl) {
+      this.cache.delete(key);
+      return null;
+    }
+
+    return entry.fundamentals;
+  }
+
+  /**
+   * Add to cache with TTL
+   */
+  private addToCache(
+    key: string,
+    fundamentals: IStockFundamentals | IStockFundamentals[],
+    ttl?: number
+  ): void {
+    // Enforce max entries limit
+    if (this.cache.size >= this.cacheConfig.maxEntries) {
+      // Remove oldest entry
+      const oldestKey = this.cache.keys().next().value;
+      if (oldestKey) {
+        this.cache.delete(oldestKey);
+      }
+    }
+
+    this.cache.set(key, {
+      fundamentals,
+      timestamp: new Date(),
+      ttl: ttl || this.cacheConfig.ttl
+    });
+  }
+
+  /**
+   * Get human-readable request description
+   */
+  private getRequestDescription(request: IFundamentalsRequest): string {
+    switch (request.type) {
+      case 'fundamentals-current':
+        return `fundamentals for ${request.ticker}`;
+      case 'fundamentals-batch':
+        return `fundamentals for ${request.tickers.length} tickers`;
+      default:
+        return 'fundamentals data';
+    }
+  }
+}

ts/stocks/classes.stockdataservice.ts

@@ -0,0 +1,647 @@
+import * as plugins from '../plugins.js';
+import type { IStockProvider, IProviderConfig } from './interfaces/provider.js';
+import type { IFundamentalsProvider, IFundamentalsProviderConfig, IStockFundamentals } from './interfaces/fundamentals.js';
+import type { IStockPrice, IStockDataRequest as IPriceRequest } from './interfaces/stockprice.js';
+import type { IStockData, IStockDataServiceConfig, ICompleteStockDataRequest, ICompleteStockDataBatchRequest } from './interfaces/stockdata.js';
+
+interface IProviderEntry<T> {
+  provider: T;
+  config: IProviderConfig | IFundamentalsProviderConfig;
+  lastError?: Error;
+  lastErrorTime?: Date;
+  successCount: number;
+  errorCount: number;
+}
+
+interface ICacheEntry<T> {
+  data: T;
+  timestamp: Date;
+  ttl: number;
+}
+
+/**
+ * Unified service for managing both stock prices and fundamentals
+ * Provides automatic enrichment and convenient combined data access
+ */
+export class StockDataService {
+  private priceProviders = new Map<string, IProviderEntry<IStockProvider>>();
+  private fundamentalsProviders = new Map<string, IProviderEntry<IFundamentalsProvider>>();
+
+  private priceCache = new Map<string, ICacheEntry<IStockPrice | IStockPrice[]>>();
+  private fundamentalsCache = new Map<string, ICacheEntry<IStockFundamentals | IStockFundamentals[]>>();
+
+  private logger = console;
+
+  private config: Required<IStockDataServiceConfig> = {
+    cache: {
+      priceTTL: 24 * 60 * 60 * 1000, // 24 hours
+      fundamentalsTTL: 90 * 24 * 60 * 60 * 1000, // 90 days
+      maxEntries: 10000
+    },
+    timeout: {
+      price: 10000, // 10 seconds
+      fundamentals: 30000 // 30 seconds
+    }
+  };
+
+  constructor(config?: IStockDataServiceConfig) {
+    if (config) {
+      this.config = {
+        cache: { ...this.config.cache, ...config.cache },
+        timeout: { ...this.config.timeout, ...config.timeout }
+      };
+    }
+  }
+
+  // ========== Provider Management ==========
+
+  /**
+   * Register a price provider
+   */
+  public registerPriceProvider(provider: IStockProvider, config?: IProviderConfig): void {
+    const defaultConfig: IProviderConfig = {
+      enabled: true,
+      priority: provider.priority,
+      timeout: this.config.timeout.price,
+      retryAttempts: 2,
+      retryDelay: 1000
+    };
+
+    const mergedConfig = { ...defaultConfig, ...config };
+
+    this.priceProviders.set(provider.name, {
+      provider,
+      config: mergedConfig,
+      successCount: 0,
+      errorCount: 0
+    });
+
+    console.log(`Registered price provider: ${provider.name}`);
+  }
+
+  /**
+   * Register a fundamentals provider
+   */
+  public registerFundamentalsProvider(
+    provider: IFundamentalsProvider,
+    config?: IFundamentalsProviderConfig
+  ): void {
+    const defaultConfig: IFundamentalsProviderConfig = {
+      enabled: true,
+      priority: provider.priority,
+      timeout: this.config.timeout.fundamentals,
+      retryAttempts: 2,
+      retryDelay: 1000,
+      cacheTTL: this.config.cache.fundamentalsTTL
+    };
+
+    const mergedConfig = { ...defaultConfig, ...config };
+
+    this.fundamentalsProviders.set(provider.name, {
+      provider,
+      config: mergedConfig,
+      successCount: 0,
+      errorCount: 0
+    });
+
+    console.log(`Registered fundamentals provider: ${provider.name}`);
+  }
+
+  /**
+   * Unregister a price provider
+   */
+  public unregisterPriceProvider(providerName: string): void {
+    this.priceProviders.delete(providerName);
+    console.log(`Unregistered price provider: ${providerName}`);
+  }
+
+  /**
+   * Unregister a fundamentals provider
+   */
+  public unregisterFundamentalsProvider(providerName: string): void {
+    this.fundamentalsProviders.delete(providerName);
+    console.log(`Unregistered fundamentals provider: ${providerName}`);
+  }
+
+  /**
+   * Get all registered price providers
+   */
+  public getPriceProviders(): IStockProvider[] {
+    return Array.from(this.priceProviders.values()).map(entry => entry.provider);
+  }
+
+  /**
+   * Get all registered fundamentals providers
+   */
+  public getFundamentalsProviders(): IFundamentalsProvider[] {
+    return Array.from(this.fundamentalsProviders.values()).map(entry => entry.provider);
+  }
+
+  /**
+   * Get enabled price providers sorted by priority
+   */
+  private getEnabledPriceProviders(): IStockProvider[] {
+    return Array.from(this.priceProviders.values())
+      .filter(entry => entry.config.enabled)
+      .sort((a, b) => (b.config.priority || 0) - (a.config.priority || 0))
+      .map(entry => entry.provider);
+  }
+
+  /**
+   * Get enabled fundamentals providers sorted by priority
+   */
+  private getEnabledFundamentalsProviders(): IFundamentalsProvider[] {
+    return Array.from(this.fundamentalsProviders.values())
+      .filter(entry => entry.config.enabled)
+      .sort((a, b) => (b.config.priority || 0) - (a.config.priority || 0))
+      .map(entry => entry.provider);
+  }
+
+  // ========== Data Fetching Methods ==========
+
+  /**
+   * Get current price for a single ticker
+   */
+  public async getPrice(ticker: string): Promise<IStockPrice> {
+    const cacheKey = `price:${ticker}`;
+    const cached = this.getFromCache(this.priceCache, cacheKey);
+
+    if (cached) {
+      console.log(`Cache hit for price: ${ticker}`);
+      return cached as IStockPrice;
+    }
+
+    const providers = this.getEnabledPriceProviders();
+    if (providers.length === 0) {
+      throw new Error('No price providers available');
+    }
+
+    let lastError: Error | undefined;
+
+    for (const provider of providers) {
+      const entry = this.priceProviders.get(provider.name)!;
+
+      try {
+        const result = await this.fetchWithRetry(
+          () => provider.fetchData({ type: 'current', ticker }),
+          entry.config
+        );
+
+        entry.successCount++;
+
+        const price = result as IStockPrice;
+        this.addToCache(this.priceCache, cacheKey, price, this.config.cache.priceTTL);
+
+        console.log(`Successfully fetched price for ${ticker} from ${provider.name}`);
+        return price;
+      } catch (error) {
+        entry.errorCount++;
+        entry.lastError = error as Error;
+        entry.lastErrorTime = new Date();
+        lastError = error as Error;
+
+        console.warn(`Provider ${provider.name} failed for ${ticker}: ${error.message}`);
+      }
+    }
+
+    throw new Error(
+      `Failed to fetch price for ${ticker} from all providers. Last error: ${lastError?.message}`
+    );
+  }
+
+  /**
+   * Get current prices for multiple tickers
+   */
+  public async getPrices(tickers: string[]): Promise<IStockPrice[]> {
+    const cacheKey = `prices:${tickers.sort().join(',')}`;
+    const cached = this.getFromCache(this.priceCache, cacheKey);
+
+    if (cached) {
+      console.log(`Cache hit for prices: ${tickers.length} tickers`);
+      return cached as IStockPrice[];
+    }
+
+    const providers = this.getEnabledPriceProviders();
+    if (providers.length === 0) {
+      throw new Error('No price providers available');
+    }
+
+    let lastError: Error | undefined;
+
+    for (const provider of providers) {
+      const entry = this.priceProviders.get(provider.name)!;
+
+      try {
+        const result = await this.fetchWithRetry(
+          () => provider.fetchData({ type: 'batch', tickers }),
+          entry.config
+        );
+
+        entry.successCount++;
+
+        const prices = result as IStockPrice[];
+        this.addToCache(this.priceCache, cacheKey, prices, this.config.cache.priceTTL);
+
+        console.log(`Successfully fetched ${prices.length} prices from ${provider.name}`);
+        return prices;
+      } catch (error) {
+        entry.errorCount++;
+        entry.lastError = error as Error;
+        entry.lastErrorTime = new Date();
+        lastError = error as Error;
+
+        console.warn(`Provider ${provider.name} failed for batch prices: ${error.message}`);
+      }
+    }
+
+    throw new Error(
+      `Failed to fetch prices for ${tickers.length} tickers from all providers. Last error: ${lastError?.message}`
+    );
+  }
+
+  /**
+   * Get fundamentals for a single ticker
+   */
+  public async getFundamentals(ticker: string): Promise<IStockFundamentals> {
+    const cacheKey = `fundamentals:${ticker}`;
+    const cached = this.getFromCache(this.fundamentalsCache, cacheKey);
+
+    if (cached) {
+      console.log(`Cache hit for fundamentals: ${ticker}`);
+      return cached as IStockFundamentals;
+    }
+
+    const providers = this.getEnabledFundamentalsProviders();
+    if (providers.length === 0) {
+      throw new Error('No fundamentals providers available');
+    }
+
+    let lastError: Error | undefined;
+
+    for (const provider of providers) {
+      const entry = this.fundamentalsProviders.get(provider.name)!;
+
+      try {
+        const result = await this.fetchWithRetry(
+          () => provider.fetchData({ type: 'fundamentals-current', ticker }),
+          entry.config
+        );
+
+        entry.successCount++;
+
+        const fundamentals = result as IStockFundamentals;
+        const ttl = (entry.config as IFundamentalsProviderConfig).cacheTTL || this.config.cache.fundamentalsTTL;
+        this.addToCache(this.fundamentalsCache, cacheKey, fundamentals, ttl);
+
+        console.log(`Successfully fetched fundamentals for ${ticker} from ${provider.name}`);
+        return fundamentals;
+      } catch (error) {
+        entry.errorCount++;
+        entry.lastError = error as Error;
+        entry.lastErrorTime = new Date();
+        lastError = error as Error;
+
+        console.warn(`Provider ${provider.name} failed for ${ticker} fundamentals: ${error.message}`);
+      }
+    }
+
+    throw new Error(
+      `Failed to fetch fundamentals for ${ticker} from all providers. Last error: ${lastError?.message}`
+    );
+  }
+
+  /**
+   * Get fundamentals for multiple tickers
+   */
+  public async getBatchFundamentals(tickers: string[]): Promise<IStockFundamentals[]> {
+    const cacheKey = `fundamentals-batch:${tickers.sort().join(',')}`;
+    const cached = this.getFromCache(this.fundamentalsCache, cacheKey);
+
+    if (cached) {
+      console.log(`Cache hit for batch fundamentals: ${tickers.length} tickers`);
+      return cached as IStockFundamentals[];
+    }
+
+    const providers = this.getEnabledFundamentalsProviders();
+    if (providers.length === 0) {
+      throw new Error('No fundamentals providers available');
+    }
+
+    let lastError: Error | undefined;
+
+    for (const provider of providers) {
+      const entry = this.fundamentalsProviders.get(provider.name)!;
+
+      try {
+        const result = await this.fetchWithRetry(
+          () => provider.fetchData({ type: 'fundamentals-batch', tickers }),
+          entry.config
+        );
+
+        entry.successCount++;
+
+        const fundamentals = result as IStockFundamentals[];
+        const ttl = (entry.config as IFundamentalsProviderConfig).cacheTTL || this.config.cache.fundamentalsTTL;
+        this.addToCache(this.fundamentalsCache, cacheKey, fundamentals, ttl);
+
+        console.log(`Successfully fetched ${fundamentals.length} fundamentals from ${provider.name}`);
+        return fundamentals;
+      } catch (error) {
+        entry.errorCount++;
+        entry.lastError = error as Error;
+        entry.lastErrorTime = new Date();
+        lastError = error as Error;
+
+        console.warn(`Provider ${provider.name} failed for batch fundamentals: ${error.message}`);
+      }
+    }
+
+    throw new Error(
+      `Failed to fetch fundamentals for ${tickers.length} tickers from all providers. Last error: ${lastError?.message}`
+    );
+  }
+
+  /**
+   * ✨ Get complete stock data (price + fundamentals) with automatic enrichment
+   */
+  public async getStockData(request: string | ICompleteStockDataRequest): Promise<IStockData> {
+    const normalizedRequest = typeof request === 'string'
+      ? { ticker: request, includeFundamentals: true, enrichFundamentals: true }
+      : { includeFundamentals: true, enrichFundamentals: true, ...request };
+
+    const price = await this.getPrice(normalizedRequest.ticker);
+
+    let fundamentals: IStockFundamentals | undefined;
+
+    if (normalizedRequest.includeFundamentals) {
+      try {
+        fundamentals = await this.getFundamentals(normalizedRequest.ticker);
+
+        // Enrich fundamentals with price calculations
+        if (normalizedRequest.enrichFundamentals && fundamentals) {
+          fundamentals = this.enrichWithPrice(fundamentals, price.price);
+        }
+      } catch (error) {
+        console.warn(`Failed to fetch fundamentals for ${normalizedRequest.ticker}: ${error.message}`);
+        // Continue without fundamentals
+      }
+    }
+
+    return {
+      ticker: normalizedRequest.ticker,
+      price,
+      fundamentals,
+      fetchedAt: new Date()
+    };
+  }
+
+  /**
+   * ✨ Get complete stock data for multiple tickers with automatic enrichment
+   */
+  public async getBatchStockData(request: string[] | ICompleteStockDataBatchRequest): Promise<IStockData[]> {
+    const normalizedRequest = Array.isArray(request)
+      ? { tickers: request, includeFundamentals: true, enrichFundamentals: true }
+      : { includeFundamentals: true, enrichFundamentals: true, ...request };
+
+    const prices = await this.getPrices(normalizedRequest.tickers);
+    const priceMap = new Map(prices.map(p => [p.ticker, p]));
+
+    let fundamentalsMap = new Map<string, IStockFundamentals>();
+
+    if (normalizedRequest.includeFundamentals) {
+      try {
+        const fundamentals = await this.getBatchFundamentals(normalizedRequest.tickers);
+
+        // Enrich with prices if requested
+        if (normalizedRequest.enrichFundamentals) {
+          for (const fund of fundamentals) {
+            const price = priceMap.get(fund.ticker);
+            if (price) {
+              fundamentalsMap.set(fund.ticker, this.enrichWithPrice(fund, price.price));
+            } else {
+              fundamentalsMap.set(fund.ticker, fund);
+            }
+          }
+        } else {
+          fundamentalsMap = new Map(fundamentals.map(f => [f.ticker, f]));
+        }
+      } catch (error) {
+        console.warn(`Failed to fetch batch fundamentals: ${error.message}`);
+        // Continue without fundamentals
+      }
+    }
+
+    return normalizedRequest.tickers.map(ticker => ({
+      ticker,
+      price: priceMap.get(ticker)!,
+      fundamentals: fundamentalsMap.get(ticker),
+      fetchedAt: new Date()
+    }));
+  }
+
+  // ========== Helper Methods ==========
+
+  /**
+   * Enrich fundamentals with calculated metrics using current price
+   */
+  private enrichWithPrice(fundamentals: IStockFundamentals, price: number): IStockFundamentals {
+    const enriched = { ...fundamentals };
+
+    // Calculate market cap: price × shares outstanding
+    if (fundamentals.sharesOutstanding) {
+      enriched.marketCap = price * fundamentals.sharesOutstanding;
+    }
+
+    // Calculate P/E ratio: price / EPS
+    if (fundamentals.earningsPerShareDiluted && fundamentals.earningsPerShareDiluted > 0) {
+      enriched.priceToEarnings = price / fundamentals.earningsPerShareDiluted;
+    }
+
+    // Calculate price-to-book: market cap / stockholders equity
+    if (enriched.marketCap && fundamentals.stockholdersEquity && fundamentals.stockholdersEquity > 0) {
+      enriched.priceToBook = enriched.marketCap / fundamentals.stockholdersEquity;
+    }
+
+    return enriched;
+  }
+
+  /**
+   * Fetch with retry logic
+   */
+  private async fetchWithRetry<T>(
+    fetchFn: () => Promise<T>,
+    config: IProviderConfig | IFundamentalsProviderConfig
+  ): Promise<T> {
+    const maxAttempts = config.retryAttempts || 1;
+    let lastError: Error | undefined;
+
+    for (let attempt = 1; attempt <= maxAttempts; attempt++) {
+      try {
+        return await fetchFn();
+      } catch (error) {
+        lastError = error as Error;
+
+        if (attempt < maxAttempts) {
+          const delay = (config.retryDelay || 1000) * attempt;
+          console.log(`Retry attempt ${attempt} after ${delay}ms`);
+          await plugins.smartdelay.delayFor(delay);
+        }
+      }
+    }
+
+    throw lastError || new Error('Unknown error during fetch');
+  }
+
+  /**
+   * Get from cache if not expired
+   */
+  private getFromCache<T>(cache: Map<string, ICacheEntry<T>>, key: string): T | null {
+    const entry = cache.get(key);
+
+    if (!entry) {
+      return null;
+    }
+
+    // Check if cache entry has expired
+    const age = Date.now() - entry.timestamp.getTime();
+    if (entry.ttl !== Infinity && age > entry.ttl) {
+      cache.delete(key);
+      return null;
+    }
+
+    return entry.data;
+  }
+
+  /**
+   * Add to cache with TTL
+   */
+  private addToCache<T>(cache: Map<string, ICacheEntry<T>>, key: string, data: T, ttl: number): void {
+    // Enforce max entries limit
+    if (cache.size >= this.config.cache.maxEntries) {
+      // Remove oldest entry
+      const oldestKey = cache.keys().next().value;
+      if (oldestKey) {
+        cache.delete(oldestKey);
+      }
+    }
+
+    cache.set(key, {
+      data,
+      timestamp: new Date(),
+      ttl
+    });
+  }
+
+  // ========== Health & Statistics ==========
+
+  /**
+   * Check health of all providers (both price and fundamentals)
+   */
+  public async checkProvidersHealth(): Promise<Map<string, boolean>> {
+    const health = new Map<string, boolean>();
+
+    // Check price providers
+    for (const [name, entry] of this.priceProviders) {
+      if (!entry.config.enabled) {
+        health.set(`${name} (price)`, false);
+        continue;
+      }
+
+      try {
+        const isAvailable = await entry.provider.isAvailable();
+        health.set(`${name} (price)`, isAvailable);
+      } catch (error) {
+        health.set(`${name} (price)`, false);
+        console.error(`Health check failed for ${name}:`, error);
+      }
+    }
+
+    // Check fundamentals providers
+    for (const [name, entry] of this.fundamentalsProviders) {
+      if (!entry.config.enabled) {
+        health.set(`${name} (fundamentals)`, false);
+        continue;
+      }
+
+      try {
+        const isAvailable = await entry.provider.isAvailable();
+        health.set(`${name} (fundamentals)`, isAvailable);
+      } catch (error) {
+        health.set(`${name} (fundamentals)`, false);
+        console.error(`Health check failed for ${name}:`, error);
+      }
+    }
+
+    return health;
+  }
+
+  /**
+   * Get statistics for all providers
+   */
+  public getProviderStats(): Map<
+    string,
+    {
+      type: 'price' | 'fundamentals';
+      successCount: number;
+      errorCount: number;
+      lastError?: string;
+      lastErrorTime?: Date;
+    }
+  > {
+    const stats = new Map();
+
+    // Price provider stats
+    for (const [name, entry] of this.priceProviders) {
+      stats.set(name, {
+        type: 'price',
+        successCount: entry.successCount,
+        errorCount: entry.errorCount,
+        lastError: entry.lastError?.message,
+        lastErrorTime: entry.lastErrorTime
+      });
+    }
+
+    // Fundamentals provider stats
+    for (const [name, entry] of this.fundamentalsProviders) {
+      stats.set(name, {
+        type: 'fundamentals',
+        successCount: entry.successCount,
+        errorCount: entry.errorCount,
+        lastError: entry.lastError?.message,
+        lastErrorTime: entry.lastErrorTime
+      });
+    }
+
+    return stats;
+  }
+
+  /**
+   * Clear all caches
+   */
+  public clearCache(): void {
+    this.priceCache.clear();
+    this.fundamentalsCache.clear();
+    console.log('All caches cleared');
+  }
+
+  /**
+   * Get cache statistics
+   */
+  public getCacheStats(): {
+    priceCache: { size: number; ttl: number };
+    fundamentalsCache: { size: number; ttl: number };
+    maxEntries: number;
+  } {
+    return {
+      priceCache: {
+        size: this.priceCache.size,
+        ttl: this.config.cache.priceTTL
+      },
+      fundamentalsCache: {
+        size: this.fundamentalsCache.size,
+        ttl: this.config.cache.fundamentalsTTL
+      },
+      maxEntries: this.config.cache.maxEntries
+    };
+  }
+}

ts/stocks/classes.stockservice.ts

@@ -1,6 +1,24 @@
 import * as plugins from '../plugins.js';
 import type { IStockProvider, IProviderConfig, IProviderRegistry } from './interfaces/provider.js';
-import type { IStockPrice, IStockQuoteRequest, IStockBatchQuoteRequest, IStockPriceError } from './interfaces/stockprice.js';
+import type {
+  IStockPrice,
+  IStockPriceError,
+  IStockDataRequest,
+  IStockCurrentRequest,
+  IStockHistoricalRequest,
+  IStockIntradayRequest,
+  IStockBatchCurrentRequest,
+  TIntervalType
+} from './interfaces/stockprice.js';
+
+// Simple request interfaces for convenience methods
+interface ISimpleQuoteRequest {
+  ticker: string;
+}
+
+interface ISimpleBatchRequest {
+  tickers: string[];
+}
 
 interface IProviderEntry {
   provider: IStockProvider;
@@ -12,8 +30,9 @@ interface IProviderEntry {
 }
 
 interface ICacheEntry {
-  price: IStockPrice;
+  price: IStockPrice | IStockPrice[];
   timestamp: Date;
+  ttl: number; // Specific TTL for this entry
 }
 
 export class StockPriceService implements IProviderRegistry {
@@ -22,8 +41,8 @@ export class StockPriceService implements IProviderRegistry {
   private logger = console;
 
   private cacheConfig = {
-    ttl: 60000, // 60 seconds default
-    maxEntries: 1000
+    ttl: 60000, // 60 seconds default (for backward compatibility)
+    maxEntries: 10000 // Increased for historical data
   };
 
   constructor(cacheConfig?: { ttl?: number; maxEntries?: number }) {
@@ -32,6 +51,43 @@ export class StockPriceService implements IProviderRegistry {
     }
   }
 
+  /**
+   * Get data-type aware TTL for smart caching
+   */
+  private getCacheTTL(dataType: 'eod' | 'historical' | 'intraday' | 'live', interval?: TIntervalType): number {
+    switch (dataType) {
+      case 'historical':
+        return Infinity; // Historical data never changes
+      case 'eod':
+        return 24 * 60 * 60 * 1000; // 24 hours (EOD is static after market close)
+      case 'intraday':
+        // Match cache TTL to interval
+        return this.getIntervalMs(interval);
+      case 'live':
+        return 30 * 1000; // 30 seconds for live data
+      default:
+        return this.cacheConfig.ttl; // Fallback to default
+    }
+  }
+
+  /**
+   * Convert interval to milliseconds
+   */
+  private getIntervalMs(interval?: TIntervalType): number {
+    if (!interval) return 60 * 1000; // Default 1 minute
+
+    const intervalMap: Record<TIntervalType, number> = {
+      '1min': 60 * 1000,
+      '5min': 5 * 60 * 1000,
+      '10min': 10 * 60 * 1000,
+      '15min': 15 * 60 * 1000,
+      '30min': 30 * 60 * 1000,
+      '1hour': 60 * 60 * 1000
+    };
+
+    return intervalMap[interval] || 60 * 1000;
+  }
+
   public register(provider: IStockProvider, config?: IProviderConfig): void {
     const defaultConfig: IProviderConfig = {
       enabled: true,
@@ -73,12 +129,37 @@ export class StockPriceService implements IProviderRegistry {
       .map(entry => entry.provider);
   }
 
-  public async getPrice(request: IStockQuoteRequest): Promise<IStockPrice> {
-    const cacheKey = this.getCacheKey(request);
+  /**
+   * Convenience method: Get current price for a single ticker
+   */
+  public async getPrice(request: ISimpleQuoteRequest): Promise<IStockPrice> {
+    const result = await this.getData({
+      type: 'current',
+      ticker: request.ticker
+    });
+    return result as IStockPrice;
+  }
+
+  /**
+   * Convenience method: Get current prices for multiple tickers
+   */
+  public async getPrices(request: ISimpleBatchRequest): Promise<IStockPrice[]> {
+    const result = await this.getData({
+      type: 'batch',
+      tickers: request.tickers
+    });
+    return result as IStockPrice[];
+  }
+
+  /**
+   * New unified data fetching method supporting all request types
+   */
+  public async getData(request: IStockDataRequest): Promise<IStockPrice | IStockPrice[]> {
+    const cacheKey = this.getDataCacheKey(request);
     const cached = this.getFromCache(cacheKey);
 
     if (cached) {
-      console.log(`Cache hit for ${request.ticker}`);
+      console.log(`Cache hit for ${this.getRequestDescription(request)}`);
       return cached;
     }
 
@@ -93,15 +174,19 @@ export class StockPriceService implements IProviderRegistry {
       const entry = this.providers.get(provider.name)!;
 
       try {
-        const price = await this.fetchWithRetry(
-          () => provider.fetchPrice(request),
+        const result = await this.fetchWithRetry(
+          () => provider.fetchData(request),
           entry.config
-        );
+        ) as IStockPrice | IStockPrice[];
 
         entry.successCount++;
-        this.addToCache(cacheKey, price);
-        console.log(`Successfully fetched ${request.ticker} from ${provider.name}`);
-        return price;
+
+        // Determine TTL based on request type
+        const ttl = this.getRequestTTL(request, result);
+        this.addToCache(cacheKey, result, ttl);
+
+        console.log(`Successfully fetched ${this.getRequestDescription(request)} from ${provider.name}`);
+        return result;
       } catch (error) {
         entry.errorCount++;
         entry.lastError = error as Error;
@@ -109,91 +194,50 @@ export class StockPriceService implements IProviderRegistry {
         lastError = error as Error;
 
         console.warn(
-          `Provider ${provider.name} failed for ${request.ticker}: ${error.message}`
+          `Provider ${provider.name} failed for ${this.getRequestDescription(request)}: ${error.message}`
         );
       }
     }
 
     throw new Error(
-      `Failed to fetch price for ${request.ticker} from all providers. Last error: ${lastError?.message}`
+      `Failed to fetch ${this.getRequestDescription(request)} from all providers. Last error: ${lastError?.message}`
     );
   }
 
-  public async getPrices(request: IStockBatchQuoteRequest): Promise<IStockPrice[]> {
-    const cachedPrices: IStockPrice[] = [];
-    const tickersToFetch: string[] = [];
-
-    // Check cache for each ticker
-    for (const ticker of request.tickers) {
-      const cacheKey = this.getCacheKey({ ticker, includeExtendedHours: request.includeExtendedHours });
-      const cached = this.getFromCache(cacheKey);
-      
-      if (cached) {
-        cachedPrices.push(cached);
-      } else {
-        tickersToFetch.push(ticker);
+  /**
+   * Get TTL based on request type and result
+   */
+  private getRequestTTL(request: IStockDataRequest, result: IStockPrice | IStockPrice[]): number {
+    switch (request.type) {
+      case 'historical':
+        return Infinity; // Historical data never changes
+      case 'current':
+        return this.getCacheTTL('eod');
+      case 'batch':
+        return this.getCacheTTL('eod');
+      case 'intraday':
+        return this.getCacheTTL('intraday', request.interval);
+      default:
+        return this.cacheConfig.ttl;
     }
   }
 
-    if (tickersToFetch.length === 0) {
-      console.log(`All ${request.tickers.length} tickers served from cache`);
-      return cachedPrices;
+  /**
+   * Get human-readable description of request
+   */
+  private getRequestDescription(request: IStockDataRequest): string {
+    switch (request.type) {
+      case 'current':
+        return `current price for ${request.ticker}${request.exchange ? ` on ${request.exchange}` : ''}`;
+      case 'historical':
+        return `historical prices for ${request.ticker} from ${request.from.toISOString().split('T')[0]} to ${request.to.toISOString().split('T')[0]}`;
+      case 'intraday':
+        return `intraday ${request.interval} prices for ${request.ticker}`;
+      case 'batch':
+        return `batch prices for ${request.tickers.length} tickers`;
+      default:
+        return 'data';
     }
-
-    const providers = this.getEnabledProviders();
-    if (providers.length === 0) {
-      throw new Error('No stock price providers available');
-    }
-
-    let lastError: Error | undefined;
-    let fetchedPrices: IStockPrice[] = [];
-
-    for (const provider of providers) {
-      const entry = this.providers.get(provider.name)!;
-      
-      try {
-        fetchedPrices = await this.fetchWithRetry(
-          () => provider.fetchPrices({ 
-            tickers: tickersToFetch, 
-            includeExtendedHours: request.includeExtendedHours 
-          }),
-          entry.config
-        );
-
-        entry.successCount++;
-        
-        // Cache the fetched prices
-        for (const price of fetchedPrices) {
-          const cacheKey = this.getCacheKey({ 
-            ticker: price.ticker, 
-            includeExtendedHours: request.includeExtendedHours 
-          });
-          this.addToCache(cacheKey, price);
-        }
-
-        console.log(
-          `Successfully fetched ${fetchedPrices.length} prices from ${provider.name}`
-        );
-        break;
-      } catch (error) {
-        entry.errorCount++;
-        entry.lastError = error as Error;
-        entry.lastErrorTime = new Date();
-        lastError = error as Error;
-        
-        console.warn(
-          `Provider ${provider.name} failed for batch request: ${error.message}`
-        );
-      }
-    }
-
-    if (fetchedPrices.length === 0 && lastError) {
-      throw new Error(
-        `Failed to fetch prices from all providers. Last error: ${lastError.message}`
-      );
-    }
-
-    return [...cachedPrices, ...fetchedPrices];
   }
 
   public async checkProvidersHealth(): Promise<Map<string, boolean>> {
@@ -271,19 +315,38 @@ export class StockPriceService implements IProviderRegistry {
     throw lastError || new Error('Unknown error during fetch');
   }
 
-  private getCacheKey(request: IStockQuoteRequest): string {
-    return `${request.ticker}:${request.includeExtendedHours || false}`;
+  /**
+   * New cache key generation for discriminated union requests
+   */
+  private getDataCacheKey(request: IStockDataRequest): string {
+    switch (request.type) {
+      case 'current':
+        return `current:${request.ticker}${request.exchange ? `:${request.exchange}` : ''}`;
+      case 'historical':
+        const fromStr = request.from.toISOString().split('T')[0];
+        const toStr = request.to.toISOString().split('T')[0];
+        return `historical:${request.ticker}:${fromStr}:${toStr}${request.exchange ? `:${request.exchange}` : ''}`;
+      case 'intraday':
+        const dateStr = request.date ? request.date.toISOString().split('T')[0] : 'latest';
+        return `intraday:${request.ticker}:${request.interval}:${dateStr}${request.exchange ? `:${request.exchange}` : ''}`;
+      case 'batch':
+        const tickers = request.tickers.sort().join(',');
+        return `batch:${tickers}${request.exchange ? `:${request.exchange}` : ''}`;
+      default:
+        return `unknown:${JSON.stringify(request)}`;
+    }
   }
 
-  private getFromCache(key: string): IStockPrice | null {
+  private getFromCache(key: string): IStockPrice | IStockPrice[] | null {
     const entry = this.cache.get(key);
 
     if (!entry) {
       return null;
     }
 
+    // Check if cache entry has expired
     const age = Date.now() - entry.timestamp.getTime();
-    if (age > this.cacheConfig.ttl) {
+    if (entry.ttl !== Infinity && age > entry.ttl) {
       this.cache.delete(key);
       return null;
     }
@@ -291,7 +354,7 @@ export class StockPriceService implements IProviderRegistry {
     return entry.price;
   }
 
-  private addToCache(key: string, price: IStockPrice): void {
+  private addToCache(key: string, price: IStockPrice | IStockPrice[], ttl?: number): void {
     // Enforce max entries limit
     if (this.cache.size >= this.cacheConfig.maxEntries) {
       // Remove oldest entry
@@ -303,7 +366,8 @@ export class StockPriceService implements IProviderRegistry {
 
     this.cache.set(key, {
       price,
-      timestamp: new Date()
+      timestamp: new Date(),
+      ttl: ttl || this.cacheConfig.ttl
     });
   }
 }

ts/stocks/index.ts

@@ -1,9 +1,18 @@
 // Export all interfaces
 export * from './interfaces/stockprice.js';
 export * from './interfaces/provider.js';
+export * from './interfaces/fundamentals.js';
+export * from './interfaces/stockdata.js';
 
-// Export main service
+// Export main services
 export * from './classes.stockservice.js';
+export * from './classes.fundamentalsservice.js';
+export * from './classes.stockdataservice.js'; // ✨ New unified service
+
+// Export base service (for advanced use cases)
+export * from './classes.baseproviderservice.js';
 
 // Export providers
 export * from './providers/provider.yahoo.js';
+export * from './providers/provider.marketstack.js';
+export * from './providers/provider.secedgar.js';

ts/stocks/interfaces/fundamentals.ts

@@ -0,0 +1,102 @@
+/**
+ * Interfaces for stock fundamental data (financials from SEC filings)
+ * Separate from stock price data (OHLCV) to maintain clean architecture
+ */
+
+// Request types for fundamental data
+export interface IFundamentalsCurrentRequest {
+  type: 'fundamentals-current';
+  ticker: string;
+}
+
+export interface IFundamentalsBatchRequest {
+  type: 'fundamentals-batch';
+  tickers: string[];
+}
+
+export type IFundamentalsRequest =
+  | IFundamentalsCurrentRequest
+  | IFundamentalsBatchRequest;
+
+/**
+ * Stock fundamental data from SEC filings (10-K, 10-Q)
+ * Contains financial metrics like EPS, Revenue, Assets, etc.
+ */
+export interface IStockFundamentals {
+  ticker: string;
+  cik: string;
+  companyName: string;
+  provider: string;
+  timestamp: Date;
+  fetchedAt: Date;
+
+  // Per-share metrics
+  earningsPerShareBasic?: number;
+  earningsPerShareDiluted?: number;
+  sharesOutstanding?: number;
+  weightedAverageSharesOutstanding?: number;
+
+  // Income statement (annual USD)
+  revenue?: number;
+  netIncome?: number;
+  operatingIncome?: number;
+  grossProfit?: number;
+  costOfRevenue?: number;
+
+  // Balance sheet (annual USD)
+  assets?: number;
+  liabilities?: number;
+  stockholdersEquity?: number;
+  cash?: number;
+  propertyPlantEquipment?: number;
+
+  // Calculated metrics (requires current price)
+  marketCap?: number;        // price × sharesOutstanding
+  priceToEarnings?: number;  // price / EPS
+  priceToBook?: number;      // marketCap / stockholdersEquity
+
+  // Metadata
+  fiscalYear?: string;
+  fiscalQuarter?: string;
+  filingDate?: Date;
+  form?: '10-K' | '10-Q' | string;
+}
+
+/**
+ * Provider interface for fetching fundamental data
+ * Parallel to IStockProvider but for fundamentals instead of prices
+ */
+export interface IFundamentalsProvider {
+  name: string;
+  priority: number;
+  fetchData(request: IFundamentalsRequest): Promise<IStockFundamentals | IStockFundamentals[]>;
+  isAvailable(): Promise<boolean>;
+  readonly requiresAuth: boolean;
+  readonly rateLimit?: {
+    requestsPerMinute: number;
+    requestsPerDay?: number;
+  };
+}
+
+/**
+ * Configuration for fundamentals providers
+ */
+export interface IFundamentalsProviderConfig {
+  enabled: boolean;
+  priority?: number;
+  timeout?: number;
+  retryAttempts?: number;
+  retryDelay?: number;
+  cacheTTL?: number; // Custom cache TTL for this provider
+}
+
+/**
+ * Registry for managing fundamental data providers
+ */
+export interface IFundamentalsProviderRegistry {
+  register(provider: IFundamentalsProvider, config?: IFundamentalsProviderConfig): void;
+  unregister(providerName: string): void;
+  getProvider(name: string): IFundamentalsProvider | undefined;
+  getAllProviders(): IFundamentalsProvider[];
+  getEnabledProviders(): IFundamentalsProvider[];
+}

ts/stocks/interfaces/provider.ts

@@ -1,11 +1,10 @@
-import type { IStockPrice, IStockQuoteRequest, IStockBatchQuoteRequest } from './stockprice.js';
+import type { IStockPrice, IStockDataRequest } from './stockprice.js';
 
 export interface IStockProvider {
   name: string;
   priority: number;
 
-  fetchPrice(request: IStockQuoteRequest): Promise<IStockPrice>;
-  fetchPrices(request: IStockBatchQuoteRequest): Promise<IStockPrice[]>;
+  fetchData(request: IStockDataRequest): Promise<IStockPrice | IStockPrice[]>;
   isAvailable(): Promise<boolean>;
 
   supportsMarket?(market: string): boolean;

ts/stocks/interfaces/stockdata.ts

@@ -0,0 +1,65 @@
+import type { IStockPrice } from './stockprice.js';
+import type { IStockFundamentals } from './fundamentals.js';
+
+/**
+ * Combined stock data with price and fundamentals
+ * All calculated metrics (market cap, P/E, P/B) are automatically included
+ */
+export interface IStockData {
+  /** Stock ticker symbol */
+  ticker: string;
+
+  /** Price information */
+  price: IStockPrice;
+
+  /** Fundamental data (optional - may not be available for all stocks) */
+  fundamentals?: IStockFundamentals;
+
+  /** When this combined data was fetched */
+  fetchedAt: Date;
+}
+
+/**
+ * Configuration for StockDataService
+ */
+export interface IStockDataServiceConfig {
+  /** Cache configuration */
+  cache?: {
+    /** TTL for price data (default: 24 hours) */
+    priceTTL?: number;
+    /** TTL for fundamentals data (default: 90 days) */
+    fundamentalsTTL?: number;
+    /** Max cache entries (default: 10000) */
+    maxEntries?: number;
+  };
+
+  /** Provider timeouts */
+  timeout?: {
+    /** Timeout for price providers (default: 10000ms) */
+    price?: number;
+    /** Timeout for fundamentals providers (default: 30000ms) */
+    fundamentals?: number;
+  };
+}
+
+/**
+ * Request type for getting complete stock data
+ */
+export interface ICompleteStockDataRequest {
+  ticker: string;
+  /** Whether to include fundamentals (default: true) */
+  includeFundamentals?: boolean;
+  /** Whether to enrich fundamentals with price calculations (default: true) */
+  enrichFundamentals?: boolean;
+}
+
+/**
+ * Batch request for multiple stocks
+ */
+export interface ICompleteStockDataBatchRequest {
+  tickers: string[];
+  /** Whether to include fundamentals (default: true) */
+  includeFundamentals?: boolean;
+  /** Whether to enrich fundamentals with price calculations (default: true) */
+  enrichFundamentals?: boolean;
+}

ts/stocks/interfaces/stockprice.ts

@@ -1,3 +1,4 @@
+// Enhanced stock price interface with additional OHLCV data
 export interface IStockPrice {
   ticker: string;
   price: number;
@@ -10,6 +11,19 @@ export interface IStockPrice {
   marketState: 'PRE' | 'REGULAR' | 'POST' | 'CLOSED';
   exchange?: string;
   exchangeName?: string;
+
+  // Phase 1 enhancements
+  volume?: number;           // Trading volume
+  open?: number;            // Opening price
+  high?: number;            // Day high
+  low?: number;             // Day low
+  adjusted?: boolean;       // If price is split/dividend adjusted
+  dataType: 'eod' | 'intraday' | 'live'; // What kind of data this is
+  fetchedAt: Date;          // When we fetched (vs data timestamp)
+
+  // Company identification
+  companyName?: string;      // Company name (e.g., "Apple Inc.")
+  companyFullName?: string;  // Full company name with exchange (e.g., "Apple Inc. (NASDAQ:AAPL)")
 }
 
 export interface IStockPriceError {
@@ -19,12 +33,62 @@ export interface IStockPriceError {
   timestamp: Date;
 }
 
-export interface IStockQuoteRequest {
-  ticker: string;
-  includeExtendedHours?: boolean;
+// Pagination support for large datasets
+export interface IPaginatedResponse<T> {
+  data: T[];
+  pagination: {
+    currentPage: number;
+    totalPages: number;
+    totalRecords: number;
+    hasMore: boolean;
+    limit: number;
+    offset: number;
+  };
 }
 
-export interface IStockBatchQuoteRequest {
-  tickers: string[];
-  includeExtendedHours?: boolean;
+// Phase 1: Discriminated union types for different request types
+export type TIntervalType = '1min' | '5min' | '10min' | '15min' | '30min' | '1hour';
+export type TSortOrder = 'ASC' | 'DESC';
+
+// Current price request (latest EOD or live)
+export interface IStockCurrentRequest {
+  type: 'current';
+  ticker: string;
+  exchange?: string; // MIC code like 'XNAS', 'XNYS', 'XLON'
 }
+
+// Historical price request (date range)
+export interface IStockHistoricalRequest {
+  type: 'historical';
+  ticker: string;
+  from: Date;
+  to: Date;
+  exchange?: string;
+  sort?: TSortOrder;
+  limit?: number; // Max results per page (default 1000)
+  offset?: number; // For pagination
+}
+
+// Intraday price request (real-time intervals)
+export interface IStockIntradayRequest {
+  type: 'intraday';
+  ticker: string;
+  interval: TIntervalType;
+  exchange?: string;
+  limit?: number; // Number of bars to return
+  date?: Date; // Specific date for historical intraday
+}
+
+// Batch current prices request
+export interface IStockBatchCurrentRequest {
+  type: 'batch';
+  tickers: string[];
+  exchange?: string;
+}
+
+// Union type for all stock data requests
+export type IStockDataRequest =
+  | IStockCurrentRequest
+  | IStockHistoricalRequest
+  | IStockIntradayRequest
+  | IStockBatchCurrentRequest;

ts/stocks/providers/provider.marketstack.ts

@@ -0,0 +1,376 @@
+import * as plugins from '../../plugins.js';
+import type { IStockProvider, IProviderConfig } from '../interfaces/provider.js';
+import type {
+  IStockPrice,
+  IStockDataRequest,
+  IStockCurrentRequest,
+  IStockHistoricalRequest,
+  IStockIntradayRequest,
+  IStockBatchCurrentRequest
+} from '../interfaces/stockprice.js';
+
+/**
+ * Marketstack API v2 Provider - Enhanced
+ * Documentation: https://docs.apilayer.com/marketstack/docs/marketstack-api-v2-v-2-0-0
+ *
+ * Features:
+ * - End-of-Day (EOD) stock prices with historical data
+ * - Intraday pricing with multiple intervals (1min, 5min, 15min, 30min, 1hour)
+ * - Exchange filtering via MIC codes (XNAS, XNYS, XLON, etc.)
+ * - Supports 500,000+ tickers across 72+ exchanges worldwide
+ * - OHLCV data (Open, High, Low, Close, Volume)
+ * - Pagination for large datasets
+ * - Requires API key authentication
+ *
+ * Rate Limits:
+ * - Free Plan: 100 requests/month (EOD only)
+ * - Basic Plan: 10,000 requests/month
+ * - Professional Plan: 100,000 requests/month (intraday access)
+ *
+ * Phase 1 Enhancements:
+ * - Historical data retrieval with date ranges
+ * - Exchange filtering
+ * - OHLCV data support
+ * - Pagination handling
+ */
+export class MarketstackProvider implements IStockProvider {
+  public name = 'Marketstack';
+  public priority = 80; // Lower than Yahoo (100) due to rate limits and EOD-only data
+  public readonly requiresAuth = true;
+  public readonly rateLimit = {
+    requestsPerMinute: undefined, // No per-minute limit specified
+    requestsPerDay: undefined // Varies by plan
+  };
+
+  private logger = console;
+  private baseUrl = 'https://api.marketstack.com/v2';
+  private apiKey: string;
+
+  constructor(apiKey: string, private config?: IProviderConfig) {
+    if (!apiKey) {
+      throw new Error('API key is required for Marketstack provider');
+    }
+
+    this.apiKey = apiKey;
+  }
+
+  /**
+   * Unified data fetching method supporting all request types
+   */
+  public async fetchData(request: IStockDataRequest): Promise<IStockPrice[] | IStockPrice> {
+    switch (request.type) {
+      case 'current':
+        return this.fetchCurrentPrice(request);
+      case 'historical':
+        return this.fetchHistoricalPrices(request);
+      case 'intraday':
+        return this.fetchIntradayPrices(request);
+      case 'batch':
+        return this.fetchBatchCurrentPrices(request);
+      default:
+        throw new Error(`Unsupported request type: ${(request as any).type}`);
+    }
+  }
+
+  /**
+   * Fetch current/latest EOD price for a single ticker (new API)
+   */
+  private async fetchCurrentPrice(request: IStockCurrentRequest): Promise<IStockPrice> {
+    try {
+      let url = `${this.baseUrl}/tickers/${request.ticker}/eod/latest?access_key=${this.apiKey}`;
+
+      // Add exchange filter if specified
+      if (request.exchange) {
+        url += `&exchange=${request.exchange}`;
+      }
+
+      const response = await plugins.smartrequest.SmartRequest.create()
+        .url(url)
+        .timeout(this.config?.timeout || 10000)
+        .get();
+
+      const responseData = await response.json() as any;
+
+      // Check for API errors
+      if (responseData.error) {
+        throw new Error(`Marketstack API error: ${responseData.error.message || JSON.stringify(responseData.error)}`);
+      }
+
+      // For single ticker endpoint, response is direct object (not wrapped in data field)
+      if (!responseData || !responseData.close) {
+        throw new Error(`No data found for ticker ${request.ticker}`);
+      }
+
+      return this.mapToStockPrice(responseData, 'eod');
+    } catch (error) {
+      this.logger.error(`Failed to fetch current price for ${request.ticker}:`, error);
+      throw new Error(`Marketstack: Failed to fetch current price for ${request.ticker}: ${error.message}`);
+    }
+  }
+
+  /**
+   * Fetch historical EOD prices for a ticker with date range
+   */
+  private async fetchHistoricalPrices(request: IStockHistoricalRequest): Promise<IStockPrice[]> {
+    try {
+      const allPrices: IStockPrice[] = [];
+      let offset = request.offset || 0;
+      const limit = request.limit || 1000; // Max per page
+      const maxRecords = 10000; // Safety limit
+
+      while (true) {
+        let url = `${this.baseUrl}/eod?access_key=${this.apiKey}`;
+        url += `&symbols=${request.ticker}`;
+        url += `&date_from=${this.formatDate(request.from)}`;
+        url += `&date_to=${this.formatDate(request.to)}`;
+        url += `&limit=${limit}`;
+        url += `&offset=${offset}`;
+
+        if (request.exchange) {
+          url += `&exchange=${request.exchange}`;
+        }
+
+        if (request.sort) {
+          url += `&sort=${request.sort}`;
+        }
+
+        const response = await plugins.smartrequest.SmartRequest.create()
+          .url(url)
+          .timeout(this.config?.timeout || 15000)
+          .get();
+
+        const responseData = await response.json() as any;
+
+        // Check for API errors
+        if (responseData.error) {
+          throw new Error(`Marketstack API error: ${responseData.error.message || JSON.stringify(responseData.error)}`);
+        }
+
+        if (!responseData?.data || !Array.isArray(responseData.data)) {
+          throw new Error('Invalid response format from Marketstack API');
+        }
+
+        // Map data to stock prices
+        for (const data of responseData.data) {
+          try {
+            allPrices.push(this.mapToStockPrice(data, 'eod'));
+          } catch (error) {
+            this.logger.warn(`Failed to parse historical data for ${data.symbol}:`, error);
+          }
+        }
+
+        // Check if we have more pages
+        const pagination = responseData.pagination;
+        const hasMore = pagination && offset + limit < pagination.total;
+
+        // Safety check: don't fetch more than maxRecords
+        if (!hasMore || allPrices.length >= maxRecords) {
+          break;
+        }
+
+        offset += limit;
+      }
+
+      return allPrices;
+    } catch (error) {
+      this.logger.error(`Failed to fetch historical prices for ${request.ticker}:`, error);
+      throw new Error(`Marketstack: Failed to fetch historical prices for ${request.ticker}: ${error.message}`);
+    }
+  }
+
+  /**
+   * Fetch intraday prices with specified interval (Phase 2 placeholder)
+   */
+  private async fetchIntradayPrices(request: IStockIntradayRequest): Promise<IStockPrice[]> {
+    throw new Error('Intraday data support coming in Phase 2. For now, use EOD data with type: "current" or "historical"');
+  }
+
+  /**
+   * Fetch current prices for multiple tickers (new API)
+   */
+  private async fetchBatchCurrentPrices(request: IStockBatchCurrentRequest): Promise<IStockPrice[]> {
+    try {
+      const symbols = request.tickers.join(',');
+      let url = `${this.baseUrl}/eod/latest?access_key=${this.apiKey}&symbols=${symbols}`;
+
+      if (request.exchange) {
+        url += `&exchange=${request.exchange}`;
+      }
+
+      const response = await plugins.smartrequest.SmartRequest.create()
+        .url(url)
+        .timeout(this.config?.timeout || 15000)
+        .get();
+
+      const responseData = await response.json() as any;
+
+      // Check for API errors
+      if (responseData.error) {
+        throw new Error(`Marketstack API error: ${responseData.error.message || JSON.stringify(responseData.error)}`);
+      }
+
+      if (!responseData?.data || !Array.isArray(responseData.data)) {
+        throw new Error('Invalid response format from Marketstack API');
+      }
+
+      const prices: IStockPrice[] = [];
+
+      for (const data of responseData.data) {
+        try {
+          prices.push(this.mapToStockPrice(data, 'eod'));
+        } catch (error) {
+          this.logger.warn(`Failed to parse data for ${data.symbol}:`, error);
+          // Continue processing other tickers
+        }
+      }
+
+      if (prices.length === 0) {
+        throw new Error('No valid price data received from batch request');
+      }
+
+      return prices;
+    } catch (error) {
+      this.logger.error(`Failed to fetch batch current prices:`, error);
+      throw new Error(`Marketstack: Failed to fetch batch current prices: ${error.message}`);
+    }
+  }
+
+  /**
+   * Check if the Marketstack API is available and accessible
+   */
+  public async isAvailable(): Promise<boolean> {
+    try {
+      // Test with a well-known ticker
+      const url = `${this.baseUrl}/tickers/AAPL/eod/latest?access_key=${this.apiKey}`;
+
+      const response = await plugins.smartrequest.SmartRequest.create()
+        .url(url)
+        .timeout(5000)
+        .get();
+
+      const responseData = await response.json() as any;
+
+      // Check if we got valid data (not an error)
+      // Single ticker endpoint returns direct object, not wrapped in data field
+      return !responseData.error && responseData.close !== undefined;
+    } catch (error) {
+      this.logger.warn('Marketstack provider is not available:', error);
+      return false;
+    }
+  }
+
+  /**
+   * Check if a market is supported
+   * Marketstack supports 72+ exchanges worldwide
+   */
+  public supportsMarket(market: string): boolean {
+    // Marketstack has broad international coverage including:
+    // US, UK, DE, FR, JP, CN, HK, AU, CA, IN, etc.
+    const supportedMarkets = [
+      'US', 'UK', 'GB', 'DE', 'FR', 'JP', 'CN', 'HK', 'AU', 'CA',
+      'IN', 'BR', 'MX', 'IT', 'ES', 'NL', 'SE', 'CH', 'NO', 'DK'
+    ];
+    return supportedMarkets.includes(market.toUpperCase());
+  }
+
+  /**
+   * Check if a ticker format is supported
+   */
+  public supportsTicker(ticker: string): boolean {
+    // Basic validation - Marketstack supports most standard ticker formats
+    return /^[A-Z0-9\.\-]{1,10}$/.test(ticker.toUpperCase());
+  }
+
+  /**
+   * Map Marketstack API response to IStockPrice interface
+   */
+  private mapToStockPrice(data: any, dataType: 'eod' | 'intraday' | 'live' = 'eod'): IStockPrice {
+    if (!data.close) {
+      throw new Error('Missing required price data');
+    }
+
+    // Calculate change and change percent
+    // EOD data: previous close is typically open price of the same day
+    // For better accuracy, we'd need previous day's close, but that requires another API call
+    const currentPrice = data.close;
+    const previousClose = data.open || currentPrice;
+    const change = currentPrice - previousClose;
+    const changePercent = previousClose !== 0 ? (change / previousClose) * 100 : 0;
+
+    // Parse timestamp
+    const timestamp = data.date ? new Date(data.date) : new Date();
+    const fetchedAt = new Date();
+
+    const stockPrice: IStockPrice = {
+      ticker: data.symbol.toUpperCase(),
+      price: currentPrice,
+      currency: data.price_currency || 'USD',
+      change: change,
+      changePercent: changePercent,
+      previousClose: previousClose,
+      timestamp: timestamp,
+      provider: this.name,
+      marketState: 'CLOSED', // EOD data is always for closed markets
+      exchange: data.exchange,
+      exchangeName: data.exchange_code || data.name,
+
+      // Phase 1 enhancements: OHLCV data
+      volume: data.volume,
+      open: data.open,
+      high: data.high,
+      low: data.low,
+      adjusted: data.adj_close !== undefined, // If adj_close exists, price is adjusted
+      dataType: dataType,
+      fetchedAt: fetchedAt,
+
+      // Company identification
+      companyName: data.company_name || data.name || undefined,
+      companyFullName: this.buildCompanyFullName(data)
+    };
+
+    return stockPrice;
+  }
+
+  /**
+   * Build full company name with exchange and ticker information
+   * Example: "Apple Inc (NASDAQ:AAPL)"
+   */
+  private buildCompanyFullName(data: any): string | undefined {
+    // Check if API already provides full name
+    if (data.full_name || data.long_name) {
+      return data.full_name || data.long_name;
+    }
+
+    // Build from available data
+    const companyName = data.company_name || data.name;
+    const exchangeCode = data.exchange_code; // e.g., "NASDAQ"
+    const symbol = data.symbol; // e.g., "AAPL"
+
+    if (!companyName) {
+      return undefined;
+    }
+
+    // If we have exchange and symbol, build full name: "Apple Inc (NASDAQ:AAPL)"
+    if (exchangeCode && symbol) {
+      return `${companyName} (${exchangeCode}:${symbol})`;
+    }
+
+    // If we only have symbol: "Apple Inc (AAPL)"
+    if (symbol) {
+      return `${companyName} (${symbol})`;
+    }
+
+    // Otherwise just return company name
+    return companyName;
+  }
+
+  /**
+   * Format date to YYYY-MM-DD for API requests
+   */
+  private formatDate(date: Date): string {
+    const year = date.getFullYear();
+    const month = String(date.getMonth() + 1).padStart(2, '0');
+    const day = String(date.getDate()).padStart(2, '0');
+    return `${year}-${month}-${day}`;
+  }
+}

ts/stocks/providers/provider.secedgar.ts

@@ -0,0 +1,467 @@
+import * as plugins from '../../plugins.js';
+import type {
+  IFundamentalsProvider,
+  IStockFundamentals,
+  IFundamentalsRequest,
+  IFundamentalsCurrentRequest,
+  IFundamentalsBatchRequest
+} from '../interfaces/fundamentals.js';
+
+/**
+ * Configuration for SEC EDGAR provider
+ */
+export interface ISecEdgarConfig {
+  userAgent: string; // Required: Format "Company Name Email" (e.g., "fin.cx info@fin.cx")
+  cikCacheTTL?: number; // Default: 30 days (CIK codes rarely change)
+  fundamentalsCacheTTL?: number; // Default: 90 days (quarterly filings)
+  timeout?: number; // Request timeout in ms
+}
+
+/**
+ * Rate limiter for SEC EDGAR API
+ * SEC requires: 10 requests per second maximum
+ */
+class RateLimiter {
+  private requestTimes: number[] = [];
+  private readonly maxRequestsPerSecond = 10;
+
+  public async waitForSlot(): Promise<void> {
+    const now = Date.now();
+    const oneSecondAgo = now - 1000;
+
+    // Remove requests older than 1 second
+    this.requestTimes = this.requestTimes.filter(time => time > oneSecondAgo);
+
+    // If we've hit the limit, wait
+    if (this.requestTimes.length >= this.maxRequestsPerSecond) {
+      const oldestRequest = this.requestTimes[0];
+      const waitTime = 1000 - (now - oldestRequest) + 10; // +10ms buffer
+      await plugins.smartdelay.delayFor(waitTime);
+      return this.waitForSlot(); // Recursively check again
+    }
+
+    // Record this request
+    this.requestTimes.push(now);
+  }
+}
+
+/**
+ * SEC EDGAR Fundamental Data Provider
+ *
+ * Features:
+ * - Free public access (no API key required)
+ * - All US public companies
+ * - Financial data from 10-K/10-Q filings
+ * - US GAAP standardized metrics
+ * - Historical data back to ~2009
+ * - < 1 minute filing delay
+ *
+ * Documentation: https://www.sec.gov/edgar/sec-api-documentation
+ *
+ * Rate Limits:
+ * - 10 requests per second (enforced by SEC)
+ * - Requires User-Agent header in format: "Company Name Email"
+ *
+ * Data Sources:
+ * - Company Facts API: /api/xbrl/companyfacts/CIK##########.json
+ * - Ticker Lookup: /files/company_tickers.json
+ */
+export class SecEdgarProvider implements IFundamentalsProvider {
+  public name = 'SEC EDGAR';
+  public priority = 100; // High priority - free, authoritative, comprehensive
+  public readonly requiresAuth = false; // No API key needed!
+  public readonly rateLimit = {
+    requestsPerMinute: 600, // 10 requests/second = 600/minute
+    requestsPerDay: undefined // No daily limit
+  };
+
+  private logger = console;
+  private baseUrl = 'https://data.sec.gov/api/xbrl';
+  private tickersUrl = 'https://www.sec.gov/files/company_tickers.json';
+  private userAgent: string;
+  private config: Required<ISecEdgarConfig>;
+
+  // Caching
+  private cikCache = new Map<string, { cik: string; timestamp: Date }>();
+  private tickerListCache: { data: any; timestamp: Date } | null = null;
+
+  // Rate limiting
+  private rateLimiter = new RateLimiter();
+
+  constructor(config: ISecEdgarConfig) {
+    // Validate User-Agent
+    if (!config.userAgent) {
+      throw new Error('User-Agent is required for SEC EDGAR provider (format: "Company Name Email")');
+    }
+
+    // Validate User-Agent format (must contain space and @ symbol)
+    if (!config.userAgent.includes(' ') || !config.userAgent.includes('@')) {
+      throw new Error(
+        'Invalid User-Agent format. Required: "Company Name Email" (e.g., "fin.cx info@fin.cx")'
+      );
+    }
+
+    this.userAgent = config.userAgent;
+    this.config = {
+      userAgent: config.userAgent,
+      cikCacheTTL: config.cikCacheTTL || 30 * 24 * 60 * 60 * 1000, // 30 days
+      fundamentalsCacheTTL: config.fundamentalsCacheTTL || 90 * 24 * 60 * 60 * 1000, // 90 days
+      timeout: config.timeout || 30000
+    };
+  }
+
+  /**
+   * Unified data fetching method
+   */
+  public async fetchData(
+    request: IFundamentalsRequest
+  ): Promise<IStockFundamentals | IStockFundamentals[]> {
+    switch (request.type) {
+      case 'fundamentals-current':
+        return this.fetchFundamentals(request);
+      case 'fundamentals-batch':
+        return this.fetchBatchFundamentals(request);
+      default:
+        throw new Error(`Unsupported request type: ${(request as any).type}`);
+    }
+  }
+
+  /**
+   * Fetch fundamental data for a single ticker
+   */
+  private async fetchFundamentals(request: IFundamentalsCurrentRequest): Promise<IStockFundamentals> {
+    try {
+      // 1. Get CIK for ticker (with caching)
+      const cik = await this.getCIK(request.ticker);
+
+      // 2. Fetch company facts from SEC (with rate limiting)
+      const companyFacts = await this.fetchCompanyFacts(cik);
+
+      // 3. Parse facts into structured fundamental data
+      return this.parseCompanyFacts(request.ticker, cik, companyFacts);
+    } catch (error) {
+      this.logger.error(`Failed to fetch fundamentals for ${request.ticker}:`, error);
+      throw new Error(`SEC EDGAR: Failed to fetch fundamentals for ${request.ticker}: ${error.message}`);
+    }
+  }
+
+  /**
+   * Fetch fundamental data for multiple tickers
+   */
+  private async fetchBatchFundamentals(
+    request: IFundamentalsBatchRequest
+  ): Promise<IStockFundamentals[]> {
+    const results: IStockFundamentals[] = [];
+    const errors: string[] = [];
+
+    for (const ticker of request.tickers) {
+      try {
+        const fundamentals = await this.fetchFundamentals({
+          type: 'fundamentals-current',
+          ticker
+        });
+        results.push(fundamentals);
+      } catch (error) {
+        this.logger.warn(`Failed to fetch fundamentals for ${ticker}:`, error);
+        errors.push(`${ticker}: ${error.message}`);
+        // Continue with other tickers
+      }
+    }
+
+    if (results.length === 0) {
+      throw new Error(`Failed to fetch fundamentals for all tickers. Errors: ${errors.join(', ')}`);
+    }
+
+    return results;
+  }
+
+  /**
+   * Get CIK (Central Index Key) for a ticker symbol
+   * Uses SEC's public ticker-to-CIK mapping file
+   */
+  private async getCIK(ticker: string): Promise<string> {
+    const tickerUpper = ticker.toUpperCase();
+
+    // Check cache first
+    const cached = this.cikCache.get(tickerUpper);
+    if (cached) {
+      const age = Date.now() - cached.timestamp.getTime();
+      if (age < this.config.cikCacheTTL) {
+        return cached.cik;
+      }
+      // Cache expired, remove it
+      this.cikCache.delete(tickerUpper);
+    }
+
+    // Fetch ticker list (with caching at list level)
+    const tickers = await this.fetchTickerList();
+
+    // Find ticker in list (case-insensitive)
+    const entry = Object.values(tickers).find((t: any) => t.ticker === tickerUpper);
+
+    if (!entry) {
+      throw new Error(`CIK not found for ticker ${ticker}`);
+    }
+
+    const cik = String((entry as any).cik_str);
+
+    // Cache the result
+    this.cikCache.set(tickerUpper, {
+      cik,
+      timestamp: new Date()
+    });
+
+    return cik;
+  }
+
+  /**
+   * Fetch the SEC ticker-to-CIK mapping list
+   * Cached for 24 hours (list updates daily)
+   * Uses native fetch for automatic gzip decompression
+   */
+  private async fetchTickerList(): Promise<any> {
+    // Check cache
+    if (this.tickerListCache) {
+      const age = Date.now() - this.tickerListCache.timestamp.getTime();
+      if (age < 24 * 60 * 60 * 1000) { // 24 hours
+        return this.tickerListCache.data;
+      }
+    }
+
+    // Wait for rate limit slot
+    await this.rateLimiter.waitForSlot();
+
+    // Fetch from SEC using native fetch (handles gzip automatically)
+    const controller = new AbortController();
+    const timeoutId = setTimeout(() => controller.abort(), this.config.timeout);
+
+    try {
+      const response = await fetch(this.tickersUrl, {
+        headers: {
+          'User-Agent': this.userAgent,
+          'Accept': 'application/json'
+          // Note: Accept-Encoding is set automatically by fetch
+        },
+        signal: controller.signal
+      });
+
+      clearTimeout(timeoutId);
+
+      if (!response.ok) {
+        throw new Error(`HTTP ${response.status}: ${response.statusText}`);
+      }
+
+      const data = await response.json();
+
+      // Cache the list
+      this.tickerListCache = {
+        data,
+        timestamp: new Date()
+      };
+
+      return data;
+    } catch (error) {
+      clearTimeout(timeoutId);
+      throw error;
+    }
+  }
+
+  /**
+   * Fetch company facts from SEC EDGAR
+   * Uses native fetch for automatic gzip decompression
+   */
+  private async fetchCompanyFacts(cik: string): Promise<any> {
+    // Pad CIK to 10 digits
+    const paddedCIK = cik.padStart(10, '0');
+    const url = `${this.baseUrl}/companyfacts/CIK${paddedCIK}.json`;
+
+    // Wait for rate limit slot
+    await this.rateLimiter.waitForSlot();
+
+    // Fetch from SEC using native fetch (handles gzip automatically)
+    const controller = new AbortController();
+    const timeoutId = setTimeout(() => controller.abort(), this.config.timeout);
+
+    try {
+      const response = await fetch(url, {
+        headers: {
+          'User-Agent': this.userAgent,
+          'Accept': 'application/json',
+          'Host': 'data.sec.gov'
+          // Note: Accept-Encoding is set automatically by fetch and gzip is handled transparently
+        },
+        signal: controller.signal
+      });
+
+      clearTimeout(timeoutId);
+
+      if (!response.ok) {
+        throw new Error(`HTTP ${response.status}: ${response.statusText}`);
+      }
+
+      const data = await response.json();
+
+      // Validate response
+      if (!data || !data.facts) {
+        throw new Error('Invalid response from SEC EDGAR API');
+      }
+
+      return data;
+    } catch (error) {
+      clearTimeout(timeoutId);
+      throw error;
+    }
+  }
+
+  /**
+   * Parse SEC company facts into structured fundamental data
+   */
+  private parseCompanyFacts(ticker: string, cik: string, data: any): IStockFundamentals {
+    const usGaap = data.facts?.['us-gaap'];
+
+    if (!usGaap) {
+      throw new Error('No US GAAP data available');
+    }
+
+    // Extract latest values for key metrics
+    const fundamentals: IStockFundamentals = {
+      ticker: ticker.toUpperCase(),
+      cik: cik,
+      companyName: data.entityName,
+      provider: this.name,
+      timestamp: new Date(),
+      fetchedAt: new Date(),
+
+      // Per-share metrics
+      earningsPerShareBasic: this.getLatestValue(usGaap, 'EarningsPerShareBasic'),
+      earningsPerShareDiluted: this.getLatestValue(usGaap, 'EarningsPerShareDiluted'),
+      sharesOutstanding: this.getLatestValue(usGaap, 'CommonStockSharesOutstanding'),
+      weightedAverageSharesOutstanding: this.getLatestValue(
+        usGaap,
+        'WeightedAverageNumberOfSharesOutstandingBasic'
+      ),
+
+      // Income statement
+      revenue: this.getLatestValue(usGaap, 'Revenues') ||
+               this.getLatestValue(usGaap, 'RevenueFromContractWithCustomerExcludingAssessedTax'),
+      netIncome: this.getLatestValue(usGaap, 'NetIncomeLoss'),
+      operatingIncome: this.getLatestValue(usGaap, 'OperatingIncomeLoss'),
+      grossProfit: this.getLatestValue(usGaap, 'GrossProfit'),
+      costOfRevenue: this.getLatestValue(usGaap, 'CostOfRevenue'),
+
+      // Balance sheet
+      assets: this.getLatestValue(usGaap, 'Assets'),
+      liabilities: this.getLatestValue(usGaap, 'Liabilities'),
+      stockholdersEquity: this.getLatestValue(usGaap, 'StockholdersEquity'),
+      cash: this.getLatestValue(usGaap, 'CashAndCashEquivalentsAtCarryingValue'),
+      propertyPlantEquipment: this.getLatestValue(usGaap, 'PropertyPlantAndEquipmentNet'),
+
+      // Metadata (from latest available data point)
+      fiscalYear: this.getLatestMetadata(usGaap, 'EarningsPerShareDiluted')?.fy,
+      fiscalQuarter: this.getLatestMetadata(usGaap, 'EarningsPerShareDiluted')?.fp,
+      filingDate: this.getLatestMetadata(usGaap, 'EarningsPerShareDiluted')?.filed
+        ? new Date(this.getLatestMetadata(usGaap, 'EarningsPerShareDiluted')!.filed)
+        : undefined,
+      form: this.getLatestMetadata(usGaap, 'EarningsPerShareDiluted')?.form
+    };
+
+    return fundamentals;
+  }
+
+  /**
+   * Get the latest value for a US GAAP metric
+   */
+  private getLatestValue(usGaap: any, metricName: string): number | undefined {
+    const metric = usGaap[metricName];
+    if (!metric?.units) {
+      return undefined;
+    }
+
+    // Get the first unit type (USD, shares, etc.)
+    const unitType = Object.keys(metric.units)[0];
+    const values = metric.units[unitType];
+
+    if (!values || !Array.isArray(values) || values.length === 0) {
+      return undefined;
+    }
+
+    // Get the latest value (last in array)
+    const latest = values[values.length - 1];
+    return latest?.val;
+  }
+
+  /**
+   * Get metadata from the latest data point
+   */
+  private getLatestMetadata(usGaap: any, metricName: string): any | undefined {
+    const metric = usGaap[metricName];
+    if (!metric?.units) {
+      return undefined;
+    }
+
+    const unitType = Object.keys(metric.units)[0];
+    const values = metric.units[unitType];
+
+    if (!values || !Array.isArray(values) || values.length === 0) {
+      return undefined;
+    }
+
+    return values[values.length - 1];
+  }
+
+  /**
+   * Check if SEC EDGAR API is available
+   * Uses native fetch for automatic gzip decompression
+   */
+  public async isAvailable(): Promise<boolean> {
+    try {
+      // Test with Apple's well-known CIK
+      const url = `${this.baseUrl}/companyfacts/CIK0000320193.json`;
+
+      const controller = new AbortController();
+      const timeoutId = setTimeout(() => controller.abort(), 5000);
+
+      const response = await fetch(url, {
+        headers: {
+          'User-Agent': this.userAgent,
+          'Accept': 'application/json'
+        },
+        signal: controller.signal
+      });
+
+      clearTimeout(timeoutId);
+
+      if (!response.ok) {
+        return false;
+      }
+
+      const data = await response.json();
+      return data && data.facts !== undefined;
+    } catch (error) {
+      this.logger.warn('SEC EDGAR provider is not available:', error);
+      return false;
+    }
+  }
+
+  /**
+   * Get cache statistics
+   */
+  public getCacheStats(): {
+    cikCacheSize: number;
+    hasTickerList: boolean;
+  } {
+    return {
+      cikCacheSize: this.cikCache.size,
+      hasTickerList: this.tickerListCache !== null
+    };
+  }
+
+  /**
+   * Clear all caches
+   */
+  public clearCache(): void {
+    this.cikCache.clear();
+    this.tickerListCache = null;
+    this.logger.log('SEC EDGAR cache cleared');
+  }
+}

ts/stocks/providers/provider.yahoo.ts

@@ -1,6 +1,11 @@
 import * as plugins from '../../plugins.js';
 import type { IStockProvider, IProviderConfig } from '../interfaces/provider.js';
-import type { IStockPrice, IStockQuoteRequest, IStockBatchQuoteRequest } from '../interfaces/stockprice.js';
+import type {
+  IStockPrice,
+  IStockDataRequest,
+  IStockCurrentRequest,
+  IStockBatchCurrentRequest
+} from '../interfaces/stockprice.js';
 
 export class YahooFinanceProvider implements IStockProvider {
   public name = 'Yahoo Finance';
@@ -17,17 +22,39 @@ export class YahooFinanceProvider implements IStockProvider {
 
   constructor(private config?: IProviderConfig) {}
 
-  public async fetchPrice(request: IStockQuoteRequest): Promise<IStockPrice> {
+  /**
+   * Unified data fetching method
+   */
+  public async fetchData(request: IStockDataRequest): Promise<IStockPrice | IStockPrice[]> {
+    switch (request.type) {
+      case 'current':
+        return this.fetchCurrentPrice(request);
+      case 'batch':
+        return this.fetchBatchCurrentPrices(request);
+      case 'historical':
+        throw new Error('Yahoo Finance provider does not support historical data. Use Marketstack provider instead.');
+      case 'intraday':
+        throw new Error('Yahoo Finance provider does not support intraday data yet. Use Marketstack provider instead.');
+      default:
+        throw new Error(`Unsupported request type: ${(request as any).type}`);
+    }
+  }
+
+  /**
+   * Fetch current price for a single ticker
+   */
+  private async fetchCurrentPrice(request: IStockCurrentRequest): Promise<IStockPrice> {
     try {
       const url = `${this.baseUrl}/v8/finance/chart/${request.ticker}`;
-      const response = await plugins.smartrequest.getJson(url, {
-        headers: {
+      const response = await plugins.smartrequest.SmartRequest.create()
+        .url(url)
+        .headers({
           'User-Agent': this.userAgent
-        },
-        timeout: this.config?.timeout || 10000
-      });
+        })
+        .timeout(this.config?.timeout || 10000)
+        .get();
 
-      const responseData = response.body as any;
+      const responseData = await response.json() as any;
       
       if (!responseData?.chart?.result?.[0]) {
         throw new Error(`No data found for ticker ${request.ticker}`);
@@ -51,7 +78,9 @@ export class YahooFinanceProvider implements IStockProvider {
         provider: this.name,
         marketState: this.determineMarketState(meta),
         exchange: meta.exchange,
-        exchangeName: meta.exchangeName
+        exchangeName: meta.exchangeName,
+        dataType: 'live', // Yahoo provides real-time/near real-time data
+        fetchedAt: new Date()
       };
 
       return stockPrice;
@@ -61,19 +90,23 @@ export class YahooFinanceProvider implements IStockProvider {
     }
   }
 
-  public async fetchPrices(request: IStockBatchQuoteRequest): Promise<IStockPrice[]> {
+  /**
+   * Fetch batch current prices
+   */
+  private async fetchBatchCurrentPrices(request: IStockBatchCurrentRequest): Promise<IStockPrice[]> {
     try {
       const symbols = request.tickers.join(',');
       const url = `${this.baseUrl}/v8/finance/spark?symbols=${symbols}&range=1d&interval=5m`;
       
-      const response = await plugins.smartrequest.getJson(url, {
-        headers: {
+      const response = await plugins.smartrequest.SmartRequest.create()
+        .url(url)
+        .headers({
           'User-Agent': this.userAgent
-        },
-        timeout: this.config?.timeout || 15000
-      });
+        })
+        .timeout(this.config?.timeout || 15000)
+        .get();
 
-      const responseData = response.body as any;
+      const responseData = await response.json() as any;
       const prices: IStockPrice[] = [];
       
       for (const [ticker, data] of Object.entries(responseData)) {
@@ -99,7 +132,9 @@ export class YahooFinanceProvider implements IStockProvider {
           provider: this.name,
           marketState: sparkData.marketState || 'REGULAR',
           exchange: sparkData.exchange,
-          exchangeName: sparkData.exchangeName
+          exchangeName: sparkData.exchangeName,
+          dataType: 'live', // Yahoo provides real-time/near real-time data
+          fetchedAt: new Date()
         });
       }
 
@@ -117,7 +152,7 @@ export class YahooFinanceProvider implements IStockProvider {
   public async isAvailable(): Promise<boolean> {
     try {
       // Test with a well-known ticker
-      await this.fetchPrice({ ticker: 'AAPL' });
+      await this.fetchData({ type: 'current', ticker: 'AAPL' });
       return true;
     } catch (error) {
       console.warn('Yahoo Finance provider is not available:', error);