Dates

FreeValueStandardPro

List available dates for an option contract by request type.

Lists all dates of data that are available for an option with a given symbol, request type, and expiration. This endpoint is updated overnight.

trade · SPY · 20250321

Client

Auth

Style

request_typestring*

symbolstring*

expirationdate*

strikestring

rightstring

from thetadatadx import Client

client = Client.from_env()

rows = client.market_data.option_list_dates(
    "trade", "SPY", "20250321",
    strike="570", right="C",
)
for t in rows:
    print(t)

Parameters

Name	Type	Required	Default	Description
request_type	string	yes	—	Request type. Accepted values: trade, quote, eod, ohlc.
symbol	string	yes	—	Ticker symbol (e.g. AAPL)
expiration	date	yes	—	Expiration date YYYYMMDD
strike	string	no	*	Strike price in dollars as a string (e.g. 500 or 17.5). Use * for wildcard selection.
right	string	no	both	Option side. Use both or * (alias) for calls and puts. Accepted values: call, put, both, *.
timeout_ms	int	no	—	Per-request deadline in milliseconds. 0 means no deadline.

Response

A list of strings — one date value per row.