Alpaca Options Historical Foundation
Read-only historical option bars and trades for point-in-time price, volume, and market-response research. No orders are submitted and option execution remains disabled.
Bar rows164,432
Trade rows604,238
Bar contracts204
Trade contracts204
Underlyings5
Market dates135
Daily feature rows200
Data boundary: Alpaca documents historical options from February 2024. Historical REST supports bars and trades, but not historical quotes. The endpoints expose no feed parameter, so rows are labeled entitlement_default instead of making an unverified OPRA claim.
Underlying Readiness
| Underlying | Status | Contracts | Market dates | Bars | Trades | Latest bar |
|---|---|---|---|---|---|---|
AAPL | historical_option_training_foundation_ready | 176 | 135 | 163,995 | 603,617 | 2026-07-17T19:59:00+00:00 |
STNG | collecting_historical_depth | 13 | 33 | 339 | 494 | 2026-07-17T19:55:00+00:00 |
TNK | collecting_historical_depth | 7 | 24 | 79 | 105 | 2026-07-17T19:33:00+00:00 |
ASA | collecting_historical_depth | 7 | 7 | 12 | 14 | 2026-07-13T14:27:00+00:00 |
RIO | collecting_historical_depth | 1 | 1 | 7 | 8 | 2026-07-17T19:59:00+00:00 |
Generated 2026-07-19T20:42:33.165915+00:00. Source: Alpaca Market Data API. Research only; live trading is disabled.