Measures the share of trading volume that comes from open interest changes, calculated as OI Delta / Volume. High values indicate that a large portion of volume is from position opening or closing; low values suggest more two-way or transfer-like flow.
Request
Authorization
API Key
Add parameter in header
x-api-key
Example:
x-api-key: ********************
OAuth 2.0
Client Credentials
Add the parameter
Authorization
to Headers,whose value is to concatenate the Token after the Bearer.