Can FINRA members use multiple Market Participant Symbols (MPIDs) to report to a FINRA Facility?
A104.1: Yes. FINRA permits, on a pilot basis, the use of multiple MPIDs by members reporting trades to FINRA. Rules 6160 and 6480 provide that any member that wishes to use more than one MPID for purposes of reporting trades to a TRF or the ORF, respectively, must submit a written request to, and obtain approval from, FINRA Operations for additional MPIDs. Similarly, Rule 6170 sets forth the procedure for obtaining additional MPIDs for use on the ADF by Registered Reporting ADF ECNs. By rule, a member is required to identify on its application the bona fide business and/or regulatory purpose(s) and the system(s) for which the multiple MPIDs will be used, as well as the identity of the other SROs on whose systems the member intends to use the MPID(s), as applicable. FINRA will evaluate the use of multiple MPIDs based upon the stated purpose(s) and system(s) for which the additional MPID(s) will be used. Members must notify FINRA, and obtain FINRA approval, before using multiple MPIDs fo
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