© 2026 CME Group. All rights reserved. • All references to "options" or "options contracts" in the text of this document refer to options on futures contracts. "Futures and options" is often simplified to F&O throughout. Short Term Interest Rate products are simplified to STIR and Long Term Interest Rate products are simplified to LTIR • Information about contract volume and average rate per contract (RPC) - all amounts regarding contract volume and average RPC are for CME Group's listed futures and options ...