# Federal Register #SR-NYSEARCA-2026-94

NYSE Arca Rule Change for Trading Resumption After Level 3 Circuit Breaker Halt

**Buyer:** Securities and Exchange Commission
**Posted:** September 18, 2026
**Identifier:** SR-NYSEARCA-2026-94
**NAICS:** 523210

This notice concerns a proposed rule change by NYSE Arca, Inc. regarding trading resumption procedures after a Level 3 circuit breaker halt.
- Government buyer:
  - Securities and Exchange Commission (SEC)
  - NYSE Arca, Inc. (regulated entity proposing the rule change)
- No OEMs or vendors are involved, as this is a regulatory action, not a procurement opportunity.
- Products/services requested:
  - No products or services are being procured; the notice pertains to a rule amendment.
- Key details of the rule change:
  - Amends Rule 7.12-E to clarify trading resumption after a Level 3 market-wide circuit breaker halt
  - Trading hours will expand to 23 hours per day, 5 days per week
  - Despite expanded hours, trading will resume at 4:00 a.m. ET after a Level 3 halt, not at the start of the overnight session
  - The change is intended to preserve a cooling-off period and ensure fair, orderly market conditions during extreme volatility
- No contract value, product line items, or service line items are applicable

### Description

The proposed rule change by NYSE Arca, Inc. amends Rule 7.12-E related to the resumption of trading after a Level 3 market-wide circuit breaker halt. This amendment is in connection with the expansion of trading hours to 23 hours per day, 5 days per week. The rule change retains the current 4:00 a.m. ET resumption time following a Level 3 Market Decline, despite the extended trading hours. The change aims to preserve the cooling-off period and ensure fair and orderly market conditions during significant market volatility.

[View original listing](https://www.federalregister.gov/documents/2026/09/18/2026-19123/self-regulatory-organizations-nyse-arca-inc-notice-of-filing-and-immediate-effectiveness-of-proposed)