Client Management Advisory Notice
To | CBOT and CME Member Firm Personnel
From | Client Management
Subject | Updated TREX Layout for the CBOT-CME Common Clearing Link
Effective Date | 07/25/03
Notice Number | CCL#0307
This advisory notice provides links to the T REX layout that will be used by CBOT and CME when the Common Clearing Link is implemented on November 24th, has been updated by the addition of a new field on the A4 block for electronically-executed trades. This field is called the Customer Order Reference, and it is an up-to-fourteen byte value in positions 64 through 77, which were formerly filler. For e-cbot trades, this field is available when submitting orders to help identify the order to the customer or client. In addition, we have clarified the description of the Electronic Trading User ID field in bytes 48 through 63 on the A4 block, to indicate that for e-cbot trades this is a value from four to eleven bytes long which identifies the specific trader if there is more than one sharing an ITM. Also, in the description of the Card/Order ID field in bytes 122 through 129 of the Main Block, we have added language clarifying that for trades executed on GLOBEX, this field holds the full eight-byte Trade Order Number (TON number). Given these changes, we have changed the version number on the document from 1.8 to 1.9. For the Complete text of the TREX layout... For the complete text of the TREX layout with changes marked up ...