Retrieves the historical time series open interest for the specified instrument and exchange(s).
Time Range Limit
The maximum time range (difference between startDate and endDate) is 1 year.
Not specifying startDate and endDate
If the startDate and endDate query parameters are not provided, the API will return the daily data from the previous year.
|exchange||The name of the exchange.|
|timestamp||The time at which the event occurred.|
|value||The total outstanding number of contracts.|