I read the previous posts, but it is still unclear to me what the importance of "official roll date" is, and what impact this particular day has on me. My understanding was that you can look at the state of roll which is published by CME, which shows the gradual progress of the roll before the expiration date, i.e. the volume and the OI of the front and mack month contract. Can someone please elaborate on the importance of "official roll date"? Thanks a lot.
There is such thing as an official expiration date.
There is no such thing as an official rollover date.
Just roll over when the back-month contract has significant volume vs the front-month contract.
depending on the product,
we roll over
a day, 2 days, or a few days/weeks .... before the expiration date.