# 2026-01372: 24X Exchange Refines CAT Rules for Short Sale Tracking

2026-01372, Self-Regulatory Organizations; 24X National Exchange LLC; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Amend the CAT Compliance Rule, is a Federal Register notice from Securities and Exchange Commission published 2026-01-26, effective 2026-01-14 (as of 2026-06-08).

- Canonical: https://policyrisk.com/federal-register/2026-01372
- As of: 2026-06-08
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-01372
- Title: Self-Regulatory Organizations; 24X National Exchange LLC; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Amend the CAT Compliance Rule
- Type: Notice
- Agencies: Securities and Exchange Commission
- Citation: 91 FR 3280
- Published: 2026-01-26
- Effective: 2026-01-14
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: none
- Last updated: 2026-06-08

## In one line

24X Exchange Refines CAT Rules for Short Sale Tracking

## Summary

24X National Exchange is updating its rules to make sure brokers report if a stock sale order is a short sale using a special market maker exception. This change helps keep trading data accurate and follows new national guidelines. Brokers must start following this updated rule right away, but it doesn’t add any new fees.

## Effects PRIA read

No economic effects identified for this document.

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## Sources
- [2026-01372 on federalregister.gov](https://www.federalregister.gov/documents/2026/01/26/2026-01372/self-regulatory-organizations-24x-national-exchange-llc-notice-of-filing-and-immediate-effectiveness)
- [2026-01372 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-01-26/pdf/2026-01372.pdf)

## Related
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- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-01372 (as of 2026-06-08).