# Federal Register #SR-CboeEDGX-2026-062

SEC notice on Cboe EDGX’s proposed Level 3 trading-halt rule change

**Buyer:** Securities and Exchange Commission
**Posted:** October 08, 2026
**Respond By:** October 29, 2026
**Identifier:** SR-CboeEDGX-2026-062

The SEC notice concerns a proposed Cboe EDGX trading-halt rule change, not a government purchase.
- Government agency: U.S. Securities and Exchange Commission (SEC).
- Filing entity: Cboe EDGX Exchange, Inc.
- Proposed change: Amend Exchange Rule 11.24(b)(2) so that after a Level 3 market-wide circuit breaker halt, trading resumes no earlier than 4 a.m. on the following trading day, even under a planned 23-hours-per-day, five-days-per-week trading schedule.
- Purpose: Preserve the existing cooling-off period and support orderly markets and price discovery; the proposal does not substantively change the circuit-breaker mechanism.
- The notice invites public comments. No products, services, quantities, part numbers, contract value, or procurement vendors are identified.

### Description

Cboe EDGX Exchange, Inc. proposes to amend Rule 11.24(b)(2) concerning trading resumption after a Level 3 market-wide circuit breaker halt. The change would specify that trading resumes at 4 a.m. or later on the following trading day, retaining the current 4 a.m. resumption time when the Exchange begins 23-hours-per-day, five-days-per-week trading. The notice states that the proposal is intended to preserve the existing market-wide circuit-breaker resumption practice and does not make substantive changes to the mechanism. The Commission is soliciting comments on the proposed rule change.

[View original listing](https://www.federalregister.gov/documents/2026/10/08/2026-20603/self-regulatory-organizations-cboe-edgx-exchange-inc-notice-of-filing-and-immediate-effectiveness-of)