No longer used as of FIX 4.3. Included here for reference to prior versions.
*** REPLACED FIELD - See:
Appendix 6-F: 3. Replaced Fields: ExecBroker (tag 76), BrokerOfCredit, ClientID, ClearingFirm, ClearingAccount, and SettlLocation [replaced in FIX 4.3] ***
Identifies executing / give-up broker. Standard NASD market-maker mnemonic is preferred.