v1
latestOpenAPI 3.1.02026-07-2655154175.6 KBContract
Daily history for a contract
Daily aggregates per trading day in [startDate, endDate] — total premium / volume, OI dynamics, bid/ask execution split, sweep and multi-leg shares, VWAP, last price, IV, and trade count.
get/v1/contract/{symbol}/history
Path parameters
symbolstring required
Example:SPY__250516C00580000
OPRA option symbol in URL-safe form: {ticker}__{YYMMDD}{C|P}{strike×1000, 8 digits} — the ticker and the 15-character contract block are joined by a double underscore (__). For example, an AAPL $250 call expiring 2026-01-17 is AAPL__260117C00250000. (A space-padded 21-char OCC form such as AAPL 260117C00250000 is also accepted on some endpoints, but the __ form is canonical and works across all contract routes.)
Query parameters
start_datestring date required
end_datestring date required
Response
One row per trading day.
Example response
{
"meta": {
"requestId": "d7574836"
}
}