Change to Composite Index on Instrument

As  part of our continuous improvements to the BitMEX Index, on 04:00:00 UTC 9 July 2021,/instrument/compositeIndex API will add indexMultiplier to the response body. 

This update will be live on Testnet on 04:00:00 UTC 7 July 2021. 

If you have any further questions, please contact Support.