Latest Updates | CATNMSPLAN

08/27/2026
Technical Specifications
2026 Industry Member Releases (Transaction) - Scope and Schedule
08/26/2026
FAQ| B. Reporting Requirements
B68. If an Industry Member uses the same account for both market making and non-market making proprietary activity, what accountHolderType must be used when reporting to CAT?
08/26/2026
FAQ| C. Definitions
C5. When must the value ‘O’ (Market Making) be used for accountHolderType?
08/21/2026
Announcement
2026 Consolidated Audit Trail Advisory Committee List
08/21/2026
Technical Specifications
CAT Technical Specifications for Billing Trade Details v1.3 r2 (Redlined)
08/21/2026
Technical Specifications
CAT Technical Specifications for Billing Trade Details v1.3 r2 (Clean)
08/20/2026
Newsletter
Monthly CAT Update Newsletter: August 2026
08/17/2026
Reference Material
FINRA CAT Connectivity Supplement for Industry Members v1.19
08/14/2026
CAT Alert
CAT Alert 2020-04 - Standards for Self Reporting Erroneous Events to FINRA CAT
08/14/2026
Reference Material
Erroneous Events Self Reporting Form v1.5
08/13/2026
Technical Specifications
Order Routing Field Mapping between CAT and Exchanges v2.20
08/10/2026
Reference Material
Self-Reporting Deviations Of Clock Synchronization Standards Form
08/10/2026
Reference Material
Industry Member Onboarding Guide v1.26
08/10/2026
Reference Material
Annual Clock Synchronization Certification Form
08/07/2026
Announcement
2026 Annual FINRA CAT User Account Certification Process For CAT Reporting Agents (CRAs)

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Reach out to the FINRA CAT Helpdesk by phone at 888-696-3348 or email at [email protected].