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# Changelog
All notable changes to Stock Oracle API will be documented in this file.
## [3.0.1] - 2026-03-14
### Added
- **Filing Search `accepted_at` field**: `GET /filings/search/{ticker}` response now includes `accepted_at` (ISO 8601 timestamp) in each `FilingSummary`
- Sourced from `acceptanceDateTime` in SEC EDGAR submissions JSON — no additional HTTP requests needed
- `SECFiling` DB model gains a nullable `accepted_at TIMESTAMP` column
- SQLite auto-migration: `ALTER TABLE sec_filings ADD COLUMN accepted_at TIMESTAMP` runs at startup (idempotent)
- Existing rows have `accepted_at = NULL`; re-index with `force_refresh=true` to backfill
- Enables downstream consumers (e.g. `filing_poller`) to populate `Document.accepted_at_utc` and `Event.filed_at_utc`
## [3.0.0] - 2026-03-12
### Added
- **Alpaca Market Data Adapter**: Complete integration with Alpaca Market Data API v2
- `GET /alpaca/status` — Connection status and API key validation
- `GET /alpaca/bars/{ticker}` — Raw bars from Alpaca (no DB)
- `GET /alpaca/data/{ticker}` — OHLCV price data with DB storage (PriceDataResponse format)
- `GET /alpaca/intraday/{ticker}` — Intraday candles (1m, 5m, 15m, 1h)
- Built-in rate limiting (200 req/min token bucket) with retry + exponential backoff
- VWAP (volume-weighted average price) and trade count per bar
- Auto-pagination for large date ranges
- Completely independent from Yahoo Finance — users choose their source
- **FINRA Short Sale Volume Adapter**: RegSHO daily short volume data
- `GET /finra/short-volume/{symbol}` — Short volume data with auto-ingest
- `GET /finra/short-ratio/{symbol}` — Aggregated short ratio history
- `POST /finra/admin/ingest` — Manual ingest for single date or date range
- Public FINRA CDN data (no API key required)
- Pipe-delimited text parser for CNMS short volume files
- Multi-market data (NYSE TRF, NASDAQ TRF, NYSE)
- Auto-ingest on first query if data is missing
- **New DB Model**: `FinraShortVolume` with `(symbol, date, market)` unique constraint
- **New DataSource Enum**: `DataSource.ALPACA` added to schema
- **Configuration**: `ALPACA_API_KEY`, `ALPACA_SECRET_KEY`, `ALPACA_BASE_URL` settings
- **Docker**: Alpaca env vars passed to API container
### New Files
- `app/services/alpaca_client.py` — Alpaca HTTP client with httpx
- `app/services/alpaca_price_service.py` — Alpaca bars → PriceData conversion
- `app/api/v1/endpoints/alpaca.py` — Alpaca endpoints
- `app/models/finra_short_volume.py` — FINRA SQLAlchemy model
- `app/services/finra_short_volume_service.py` — FINRA fetch/parse/ingest service
- `app/schemas/finra.py` — FINRA Pydantic schemas
- `app/api/v1/endpoints/finra.py` — FINRA endpoints
## [2.1.0] - 2025-08-10
### Added
- **ETF Holdings API v2**: Complete rewrite with enhanced features
- `availability` field in all error responses showing available date ranges
- ETF launch date validation to prevent invalid historical requests
- Automatic detection when ETF didn't exist on requested date
- Fast performance optimization (<0.1s response time, down from 35s)
- Enhanced error messages with actionable information
### Improved
- **Performance**: ETF date validation now uses cached launch dates for instant response
- **User Experience**: Clear error messages when ETF data is unavailable
- **Documentation**: Comprehensive API documentation with examples
### Fixed
- Historical date requests now correctly validate against ETF launch dates
- QQQM pre-launch date requests now return proper error instead of wrong data
- Response model now includes all fields (fixed Pydantic model filtering issue)
## [2.0.0] - 2025-07-01
### Added
- **ETF Holdings API**: New endpoint for ETF portfolio data
- Support for 30+ major ETFs with pre-configured mappings
- Automatic CIK to ticker conversion
- Historical NPORT data from 2019 onwards
- Support for both ticker symbols and CIK numbers
### Changed
- Simplified ETF API to single `/holdings/{ticker}` endpoint
- Removed redundant ETF endpoints
## [1.5.0] - 2024-12-01
### Added
- **Price Data API**: OHLCV data integration with yfinance
- **Bulk Data Support**: Batch requests for multiple tickers
- **Period Strings**: Convenient time period specification (1y, 6m, 3m, etc.)
### Improved
- Database caching strategy
- Error handling and logging
- API documentation
## [1.0.0] - 2024-10-01
### Initial Release
- **Financial Data API**: SEC filing data extraction
- **Metrics Calculation**: P/E, P/B, ROE, margins, etc.
- **Database Caching**: SQLite/PostgreSQL support
- **Docker Deployment**: Complete containerization
- **API Documentation**: Interactive Swagger/OpenAPI docs