Latest Updates | CATNMSPLAN

09/25/2025
FAQ| V. CAT Billing
V12. When is the payment due for the monthly CAT invoice?
09/19/2025
Reference Material
SEC Approved CAT NMS Plan as of 9/12/2025
09/18/2025
Event
Monthly CAT Update (September 18, 2025)
09/11/2025
FAQ| K. Options
K15. How must the priceType field be populated on multi-leg events?
09/08/2025
Reference Material
Proposed CAT NMS Plan Amendment Related to Revised Funding Proposal (9/5/2025)
08/28/2025
Reference Material
CAT CAIS Reporter Portal User Guide v2.8.0
08/28/2025
Technical Specifications
CAT Reporting Technical Specifications for Plan Participants Addendum v1.0.0 r3
08/22/2025
Technical Specifications
CAT Reporting Technical Specifications for Plan Participants v4.2.0-r1
08/21/2025
Event
Monthly CAT Update (August 21, 2025)
08/19/2025
Reference Material
Industry Member Onboarding Guide v1.25
08/19/2025
Technical Specifications
CAT Technical Specifications for Billing Trade Details v1.2 r2
08/19/2025
Technical Specifications
CAT Technical Specifications for Billing Trade Details v1.2 r2 (Redlined)
08/14/2025
Reference Material
CAT Fee Alert 2025-3
08/14/2025
Technical Specifications
Customer & Account Technical Specifications for Industry Members v2.2.0 r4 (Clean)
08/14/2025
CAT Alert
CAT Alert 2025-03 - CAT Billing During Stay of 11th Circuit Decision on CAT Funding Model

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