I have a question regarding expired future contract.
At which time exactly we switch from active RIC to Expired RIC .
Example :
Consider EUREX Bond futures March 2021 ,
Active RIC was FGBLH1. The expiry date is 12/08/2021.The expired RIC is FGBLH1^2.
When can we start using the expired RIC ? Is there a period of time around expiry date we can use Both RICS FGBH1 and FGBLH1^2 ? If not how much time after contract Expiry we can query using Expiry RIC FGBLH1^2.
Thanks