SEC Announces Roundtable on Trade-Through Prohibitions

The Securities and Exchange Commission announced today that it will host a roundtable on September 18, 2025, to discuss trade-through prohibitions in the National Market System (NMS) stock and listed options markets. “Reg NMS and its Rule 611 have not served investors or broker-dealers well, given the market distortion and resulting gamesmanship by those that seek to take advantage of the Reg NMS structure,” said Chairman Paul S. Atkins. “It is incumbent upon the Commission to give the public an opportunity to weigh in on items in our rulebook that deserve a refresh, and I look forward to the input we will receive on various aspects of the Rule 611 trade-through prohibition applicable to NMS stocks and the analogous NMS plan trade-through prohibition applicable to listed options.” The roundtable will be open to the public and held at the SEC’s headquarters at 100 F Street, N.E., Washington, D.C.