Regulatory Notice 18-34

SEC Approves Amendment to Require Alternative Trading Systems to Identify Non-FINRA Member Subscribers in TRACE Reports for U.S. Treasury Securities

Effective Date: April 1, 2019


Effective April 1, 2019, large alternative trading systems (ATSs) will be required to identify non-FINRA member subscriber counterparties in TRACE reports for transactions in U.S. Treasury securities using FINRA-assigned market participant identifiers (MPIDs). This information will be used for regulatory purposes, and will not be made public.

The rule text is available in the online FINRA Manual.

Questions regarding this Notice should be directed to:

  • Chris Stone, Vice President, Transparency Services, at (202) 728-8457 or by email;
  • for inquiries regarding how to submit a list of non-FINRA member subscribers and obtain FINRA-assigned MPIDs, please contact FINRA Market Operations at (866) 776-0800 or by email; or
  • for legal and interpretive questions, please contact Racquel Russell, Associate General Counsel, Office of General Counsel, at (202) 728-8363 or by email.