Dear CME Globex Customers,

To improve the anonymity of the CME electronic marketplace, the following changes will be made to the CME Clearing (TREX) messages, the back-office Front-End Clearing (FEC) application, the official trade register report and the FIXML data file; and the CME Globex execution messages.

• Effective Sunday, June 4
  • TREX confirmation messages will be populated with the generic value "000A" in the Opposite Broker field, position 81-85 of the main block.
• Effective Sunday, June 11
  • CME Globex execution messages for NYMEX products only, traded on the CME Globex platform, will be populated with the generic value "CME000A" in FIX tag 375, the contra-party Subscriber ID.
• Effective Sunday, July 2
  • CME Globex execution messages for all products traded on the CME Globex platform will be populated with the generic value "CME000A" in tag 375.
  • Opposite broker and firm information will be removed from FEC.
  • Opposite broker and firm information will be removed from the official trade register report and FIXML data file.
  • TREX confirmation messages will be populated with the generic value "000" in the Opposite Firm field, position 76-80 of the main block.

These changes to the CME Globex execution messages for all products are currently available for testing in the CME certification environment.

If you have any questions or concerns, please contact the CME Clearing House at 312.207.2525; or your CME Globex Account Manager at 312.634.8700, or in Europe at +44.207.623.2550.

Thank you,

CME