USSECFR-2026-18537NewsIn force

Self-Regulatory Organizations; MEMX LLC; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend Rule 11.23(b)(2) Concerning the Resumption of Trading Following a Level 3 Market-Wide Circuit Breaker Halt

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https://www.federalregister.gov/documents/2026/09/11/2026-18537/self-regulatory-organizations-memx-llc-notice-of-filing-and-immediate-effectiveness-of-a-proposed

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