2026-20601NoticeWallet

Cboe BZX Sets 23-Hour Halt Recovery Rules in Motion

Published Date: 10/8/2026

Notice

Summary

Cboe BZX Exchange is updating its rules to handle trading pauses after big market drops now that trading hours are expanding to 23 hours a day, 5 days a week. This change affects traders and investors by ensuring smooth and clear trading restarts during these longer hours. The update kicks in right away, helping keep markets stable and confident even during wild swings.

Analyzed Economic Effects

1 provisions identified: 1 benefits, 0 costs, 0 mixed.

Level 3 Halts Resume at 4:00 a.m. ET

If the S&P 500 falls 20% and triggers a Level 3 market-wide circuit breaker, trading will be halted and will not resume until 4:00 a.m. ET or later on the next trading day. This rule will remain in place even after exchanges expand trading to 23 hours per day (including overnight sessions from 9:00 p.m. ET to 4:00 a.m. ET starting December 6, 2026).

Personalized for You

How does this regulation affect your finances?

Personalize government policy and PRIA will tell you what this federal register document means for your household, plus every other regulation we track. PRIA reads each provision against your financial profile to show you exactly what matters to your wallet.

Key Dates

Published Date
Effective Date
10/8/2026
10/23/2026

Department and Agencies

Department
Independent Agency
Agency
Securities and Exchange Commission
Source: View HTML

Related Federal Register Documents

Previous / Next Documents

Back to Federal Register