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v1

latestOpenAPI 3.1.02026-07-2655154175.6 KB
Underlying

List traded expirations for a ticker

Returns each expiration that traded on date, with per-expiration call/put volume + premium and the unique-contract count.

get/v1/underlying/{ticker}/expirations

Path parameters

tickerstring required
Example:SPY

Underlying ticker symbol (uppercase, e.g. SPY, AAPL).

Query parameters

datestring date
Example:2026-05-27

Trading date the request targets, in YYYY-MM-DD. Defaults to the current trading date (the most recent session that has settled enough data to be queryable). Past dates fall through to the daily rollup tables.

Response

Expirations with per-expiry totals.

Example response

{
  "meta": {
    "requestId": "d7574836"
  }
}