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GET
OI per Expiry

Authorizations

Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Path Parameters

ticker
string
required

A single ticker

Example:

"AAPL"

Query Parameters

date
string

A trading date in the format of YYYY-MM-DD. This is optional and by default the last trading date.

Example:

"2024-01-18T00:00:00.000Z"

Response

OI per expiry response

The total open interest for calls and puts for a specific expiry date.

call_oi
integer

The total call open interest.

Example:

3994750

date
string

A trading date in ISO format.

Example:

"2023-09-08T00:00:00.000Z"

expiry
string

The contract expiry date in ISO format.

Example:

"2023-12-22T00:00:00.000Z"

put_oi
integer

The total put open interest.

Example:

3679410

Last modified on September 29, 2026