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MIAX Pearl Equities

March 04, 2026 | 02:00 PM

MIAX Pearl Equities Exchange - Updated Interface Specifications to Support Upcoming Launch of Texas Stock Exchange

MIAX Pearl Equities (EPRL) has published updated Interface Specifications to support the launch of the Texas Stock Exchange LLC.

Updates to the Interface Specifications are as follows:

  • MIAX Express Orders (MEO) – Version 2.7b
    • Added a new value "F" for the “Primary Market Code” field in the Symbol Update Message
    • Added a new value "F" for the “Executing Trading Center” field in the Execution Notification Message
  • FIX Interface Specification (FOI) – Version 2.6b
    • Added a new value “TXSE” for the “ContraBroker” field (tag# 375) in the Execution Report Message
  • Depth Of Market (DOM) – Version 1.3d
    • Added new values "F" and "G" for the “Primary Market Code” field in the Symbol Update Message
  • Top Of Market (TOM) – Version 1.1c
    • Added new values "F" and "G" for the “Primary Market Code” field in the Symbol Update Message
If you have any questions, please contact MIAX Trading Operations at TradingOperations@miaxglobal.com or (609) 897-7302.

Regulatory inquiries should be directed to Regulatory@miaxglobal.com or (609) 897-7309.