Market regulation · 04/03/2026

Self-Regulatory Organizations; Miami International Securities Exchange, LLC; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Delay Implementation of the Change To Provide Origin Code in the Liquidity Seeking Event Notification Messages on the Administrative Information Subscriber (“AIS”) Feed

The Miami International Securities Exchange, LLC has filed a proposed rule change to delay the implementation of a change that would provide origin code in liquidity seeking event notification messages on the AIS feed.