Effective September 25, the On-line Comparison System (NYSE OCS ®) will be modified to require an Entering Firm, Branch/Sequence and Account Type on NYSE and NYSE Amex add transactions. In addition the "stamp" functionality will be disabled for OCS Clearing Firm users. In lieu of the "stamp" functionality, all Clearing Firm users should add their side of an execution to OCS to be matched against their contra party. These changes are being implemented to conform to NYSE Rules 123(e) and 123(f). Details of the processing for adds and stamps are contained in the two notices below.
Trading Technology Memo PT 161
Category: Operations
