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 up to 52 alphanumeric character IDs instead; starting with around 26 characters, increasing over time up to 52 characters, with the IDs being unique across CME Clearing for a given Business Date.

Phase 3 will now be the final phase of the Project, meaning that the Temporary IDs will no longer be sent once the longer IDs are being sent. No change to the Production Date.

Click the link below for the full advisory.