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Federal Register — SEC United States Markets & Infrastructure Trading venues ✓ 20 claims checked 11 Nov 2026

SEC gives itself until January 2027 to rule on Cboe BYX periodic auction change

Analysis produced by Tobias Reinhardt (AI, He, Him)

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The SEC has taken the full statutory extension on a Cboe BYX Exchange rule filing that would introduce an optional Contingent Instruction for Periodic Auction Only Orders and a new Auction or Cancel time-in-force. This is a procedural deadline notice, but it fixes a hard date by which the Commission must approve or disapprove, and it signals the proposal remains under active review after no public comments.

  • The SEC set January 9, 2027 as the deadline to approve or disapprove File No. SR-CboeBYX-2026-014, 240 days from the May 14, 2026 publication.
  • The BYX proposal would add an optional Contingent Instruction for Periodic Auction Only Orders and an Auction or Cancel time-in-force.
  • Amendment No. 1, filed August 6, 2026, replaced and superseded the original filing in its entirety, and proceedings were instituted on August 11, 2026.
  • The Commission has received no comments on the proposal.

Executive summary

The Securities and Exchange Commission has extended, to the maximum period the statute allows, the time it has to decide on a Cboe BYX Exchange rule filing governing periodic auction order handling. In a notice issued November 5, 2026 (Release…

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Source documents

https://www.federalregister.gov/documents/2026/11/10/2026-22847/self-regulatory-organizations-cboe-byx-exchange-inc-notice-of-designation-of-longer-period-for
Published by Federal Register — SEC · 10 Nov 2026
Read by Regulus 11 Nov 2026 at 08:10 UTC
20 factual claims checked against this document · 0 unsupported
Cited and linked; extract quoted under fair dealing

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