Option Chain
Use this category to inspect available expiries, strikes, calls, puts, open interest and optional Greeks for an underlying. The endpoint is GET /data/options-chain-v3.
| Input | Purpose |
|---|---|
symbol | Underlying instrument, such as an index or equity |
strikecount | Number of strikes around ATM |
timestamp | Expiry identifier from expiryData[]; omission selects the nearest expiry |
greeks | Request per-leg Greeks |
The response includes expiryData[] and optionsChain[], as well as aggregate call and put OI. Select an expiry from the response, then use its expiry timestamp in the next request. The displayed date string is not the timestamp. Validate a contract against the Symbol Master before using it in an order.
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