ATS MPID Requirement

FINRA is reminding firms that the requirement for each ATS to acquire and use a single, unique MPID when reporting information to FINRA will become effective on February 2, 2015. See FINRA Rules 6160, 6170, 6480 and 6720; see also Regulatory Notice 14-07.

There is one exception to these rules: An ATS is permitted to use two separate MPIDs if one is used exclusively to report transactions in debt securities to TRACE and the other is used exclusively to report transactions in equity securities to a FINRA equity trade reporting facility (i.e., one of the TRFs, the ADF or the OTC Reporting Facility).

Firms that operate an ATS that have filed a Form ATS with the SEC must continue to submit aggregate weekly trading information for each NMS stock and OTC Equity Security executed within each such ATS during the previous week, as required under FINRA Rule 4552. FINRA will continue to use these data files to make the data available on the ATS Transparency Data website. FINRA will provide advance notice when firms no longer have to submit their data under Rule 4552.

For additional guidance, firms should refer to

If you have any questions, please contact FINRA Market Operations at (866) 776-0800.