What's Happening?
The Financial Industry Regulatory Authority (FINRA) has issued a request for public comment on July 24, 2026, regarding the modernization of its best execution guidance under Rule 5310. This request, detailed in Regulatory Notice 26-15, does not propose
changes to the rule's text but seeks input on various execution quality questions. The notice is partly in response to the Securities and Exchange Commission's (SEC) proposed changes to Regulation NMS, which include rescinding the trade-through prohibition under Rule 611 and restrictions in Rule 610(e) on locked or crossed quotations. These changes could impact firms' operational processes, as Rule 611 has been a minimum requirement for best execution obligations. FINRA's principles-based approach to best execution is under review, and broker-dealers are encouraged to participate in shaping future guidance.
Why It's Important?
The potential changes to FINRA's best execution guidance could significantly impact broker-dealers and the broader financial market. By seeking public input, FINRA aims to ensure that its rules remain effective in serving investors and the market. The removal of Rule 611 and 610(e) could alter how firms make venue connection decisions and assess execution quality. This review provides an opportunity for broker-dealers to influence the regulatory framework that governs their operations, potentially leading to more tailored and effective execution practices. The outcome of this consultation could affect transaction costs, order handling, and the overall efficiency of the financial markets.
What's Next?
Stakeholders, including broker-dealers and other market participants, are expected to submit their comments and suggestions to FINRA. The feedback will likely inform any future amendments to Rule 5310 and related guidance. As the SEC continues to review other related rules, such as Rule 610(c) access-fee caps, further regulatory changes may be on the horizon. Firms will need to stay informed and engaged in the consultation process to adapt to any new requirements and maintain compliance with evolving best execution standards.











