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Please be advised and pursuant to CH Advisory 25-311, CME Clearing will transition the updated Clearing Trade, Allocation Group, and Allocation IDs, currently from up to 10 numeric digits, to 26-52 alphanumeric character IDs instead; with the IDs being unique across CME Clearing for a given Business Date.

Production Target: Trade Date Monday, November 16, 2026

Testing to begin Wednesday, August 12, 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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