MIAX Sapphire Tidies Up Rulebook References Quietly
Published Date: 9/23/2025
Notice
Summary
MIAX Sapphire is updating its rulebook to fix some references to a key trading rule called Rule 600(b) of Regulation NMS. This change helps keep their rules clear and up-to-date after the SEC made some updates last year. Traders and market participants will see no cost or delay—just smoother, clearer rules starting soon.
No Economic Impacts Identified for this Document
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