The new spread type for the 7-Year Eris SOFR Swap futures calendar spread will be "RT" - Reduced Tick Calendar Spread. The spread type value is found in the MDP Security Definition message in tag 762-SecuritySubType.

The spread type was previously announced as EQ - Calendar Spread.

CME Group is the world’s leading derivatives marketplace. The company is comprised of four Designated Contract Markets (DCMs). 
Further information on each exchange's rules and product listings can be found by clicking on the links to CME, CBOT, NYMEX and COMEX.

© 2026 CME Group Inc. All rights reserved.