2025-20537Notice

Cboe Updates Short Sale Rules: Trading Data Gets a Clarity Boost

Published Date: 11/21/2025

Notice

Summary

Cboe BZX Exchange is updating its rules to make sure broker-dealers report if a stock sale order is a special kind of short sale used by market makers. This change matches a new national rule and helps keep trading data accurate and clear. The update is effective immediately and affects anyone who reports trades to the Consolidated Audit Trail, with no new fees involved.

Analyzed Economic Effects

1 provisions identified: 0 benefits, 1 costs, 0 mixed.

Market-Maker Short-Sale Reporting Flag

If you are a broker-dealer or other Industry Member who reports trades to the Consolidated Audit Trail (CAT), you must record and report whether the original receipt or origination of an order to sell an equity security is a short sale for which a market maker is claiming the bona fide market making (BFMM) exception under Rule 203(b)(2)(iii) of Regulation SHO. The rule was filed September 29, 2025 and is operative upon filing, applies equally to all Industry Members that trade equity securities, and the Exchange states it does not impose any new fees.

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Key Dates

Effective Date
Published Date
9/29/2025
11/21/2025

Department and Agencies

Department
Independent Agency
Agency
Securities and Exchange Commission
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