Latest Updates | CATNMSPLAN

03/19/2026
Event
Monthly CAT Update (March 19, 2026)
02/19/2026
Event
Monthly CAT Update (February 19, 2026)
02/13/2026
Technical Specifications
Order Routing Field Mapping between CAT and Exchanges v2.17
02/13/2026
CAT Alert
CAT Alert 2020-03 - Options Market Maker Quote Sent Time
02/13/2026
Reference Material
Self-Reporting Deviations Of Clock Synchronization Standards Form
02/13/2026
CAT Alert
CAT Alert 2020-02 - Standards for Self Reporting Deviations of Clock Synchronization Standards to FINRA CAT
02/13/2026
Technical Specifications
CAT Industry Member Technical Specifications (2d) v4.1.0 r14 (Redlined)
02/13/2026
Technical Specifications
CAT Industry Member Technical Specifications (2d) v4.1.0 r14 (Clean)
02/10/2026
Event
CAT Technical Specifications Working Group - February 10, 2026
01/30/2026
Technical Specifications
CAT Industry Member Technical Specifications (2d) v4.1.0 r13
01/30/2026
FAQ| F. Representative Orders
F5. Are Industry Members required to link a Representative Order with the underlying order(s) for the Representative Order?
01/30/2026
FAQ| F. Representative Orders
F7. What is the difference between order level linkage and fulfillment level linkage on a representative order?
01/30/2026
FAQ| F. Representative Orders
F6. Are there any exceptions to the requirement to link Representative Orders with the underlying order(s)?
01/29/2026
Reference Material
SEC Order Granting Exemptive Relief Regarding Port-Level Settings
01/29/2026
Reference Material
SEC Order Granting Exemptive Relief Regarding Representative Orders

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A. General
B. Reporting Requirements
C. Definitions
D. Order Receipt
E. Order Routing and Execution
F. Representative Orders
G. Manual Orders
H. ATS
I. Foreign Securities
J. OTC Equity Securities
K. Options
L. Equity Floor Brokers
M. Firm Designated ID
N. Third Party Reporting
O. Technical Requirements
P. Feedback and Error Correction
Q. Customer and Account Information
R. Clock Synchronization
S. Security
T. Production Readiness Testing
U. Allocations
V. CAT Billing
W. Fee Dispute Resolution
All Topics

A. General
B. Reporting Requirements
C. Definitions
D. Order Receipt
E. Order Routing and Execution
F. Representative Orders
G. Manual Orders
H. ATS
I. Foreign Securities
J. OTC Equity Securities
K. Options
L. Equity Floor Brokers
M. Firm Designated ID
N. Third Party Reporting
O. Technical Requirements
P. Feedback and Error Correction
Q. Customer and Account Information
R. Clock Synchronization
S. Security
T. Production Readiness Testing
U. Allocations
V. CAT Billing
W. Fee Dispute Resolution
All Topics