Only bi-weekly and bi-quarterly contracts are listed. New and existing contracts with different expiration dates: Bi-weekly: every Friday Bi-quarterly: the third-last Friday of the expiration month (March, June, September, and December) New and existing contracts with the same expiration dates: The new contracts aren’t listed. For example, if a quarterly contract already expires on a certain date, a new bi-weekly contract set to expire on the same date isn’t listed. OKX team, Feburary 11, 2026