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Trading Alert, Regulatory Alert, Technical Alert

MIAX Sapphire

August 21, 2026 | 11:27 AM

MIAX Pearl Options & MIAX Sapphire Options Exchanges - Updated Interface Specifications to Support Upcoming Enhancements

The MIAX Pearl Options and MIAX Sapphire Options Exchanges have updated interface specifications to include support for the IEX and MX2 Options Exchanges.

  1. Pearl Options Interface Specifications:
    1. FOI Interface Specification v1.1f: SecurityExchange (tag = 207) field of ExecutionReport message (MsgType = 8) to include IEX and MX2 Options Exchange MIC code
    2. FXD Interface Specification v1.1d: SecurityExchange (tag = 207) field of ExecutionReport message (MsgType = 8) to include IEX and MX2 Options Exchange MIC code
    3. CTD Interface Specification v1.2e: Execution Exchange field of Trade message (Message Type = T) to include IEX and MX2 Options Exchange Code
  2. Identical updates have been made to the following Sapphire Options Interface Specifications:
    1. FOI Interface Specification v2.3b
    2. FXD Interface Specification v2.1a
    3. CTD Interface Specification v2.1a
  3. Visit MIAX Options Interface Specifications for additional details.
Please contact MIAX Trading Operations at TradingOperations@miaxglobal.com or (609) 897-7302 to discuss any specific issues, update configurations and arrange interface testing.