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Please be advised that CME Clearing will amend all CLP IRS and ZCS open trades by removing USNY and any other additional calendars and make CLSA the sole fixing adjustment calendar.

This update will be made in the UAT/New Release environment after the Close of Business Tuesday, June 16th, 2026.

Please click the link below for the full text of this advisory.

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.

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