MEMX Brokers Must Join Another Club: Exchange Rules Get a Cleanup
Published Date: 7/23/2025
Notice
Summary
MEMX is updating its rules to make it clear that brokers must belong to another national exchange to join MEMX. They’re also adding new rules about how MEMX Execution Services handles incoming and outgoing orders, and cleaning up old, outdated rule text. These changes took effect right after filing on July 15, 2025, with no extra costs for members.
No Economic Impacts Identified for this Document
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