Latest Updates | CATNMSPLAN

04/01/2026
Reference Material
CAT Fee Alert 2026-2
04/01/2026
Reference Material
CAT LLC- 2026 Financial and Operating Budget
04/01/2026
Reference Material
SEC Approved CAT NMS Plan as of 4/1/2026
03/27/2026
Reference Material
March 27, 2026 - SEC Approved CAT NMS Plan as of 3/27/2026
03/27/2026
Technical Specifications
Reference Database Technical Specifications v2.3.0
03/26/2026
Event
Reference Database Technical Specifications Working Group - March 17, 2026
03/25/2026
Announcement
2026 Consolidated Audit Trail Advisory Committee List
03/24/2026
Announcement
2026 Entitlement Certification Period - CAT Organizations With Super Account Administrators (SAAs)
03/19/2026
Event
Monthly CAT Update (March 19, 2026)
03/06/2026
Technical Specifications
CAT Industry Member Technical Specifications (2d) v4.1.0 r15
02/27/2026
Technical Specifications
Industry Member Reporting Scenarios v4.17
02/27/2026
FAQ| B. Reporting Requirements
B45. Are electronic responses to a Request for Quote (RFQ) or other forms of solicitation responses reportable to CAT?
02/27/2026
Technical Specifications
Industry Member Reporting Scenarios v4.17 (Redlined)
02/24/2026
Reference Material
February 24, 2026 – CAT LLC Comment Letter – Funding Proposal
02/24/2026
Reference Material
February 24, 2026 – CAT LLC Comment Letter – 2025 Cost Savings Amendment

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