option_list_expirations

FreeValueStandardPro

List all available expiration dates for an underlying symbol. This is typically the first call in an option chain discovery workflow.

Code Example

Rust

let exps: Vec<String> = tdx.option_list_expirations("SPY").await?;
println!("{} expirations available", exps.len());

Python

exps = tdx.option_list_expirations("SPY")
print(exps[:10])

Go

exps, err := client.OptionListExpirations("SPY")

C++

auto exps = client.option_list_expirations("SPY");

Parameters

symbolstringrequired

Underlying symbol

Response

(list)string[]

Expiration date strings in YYYYMMDD format

Notes

• Returns all expirations including weeklies, monthlies, and quarterlies.
• Combine with option_list_strikes to enumerate the full chain for a given expiration.