Stocks Trading 23 Hours a Day? NYSE Texas Halts Get New Rules
Published Date: 8/26/2026
Notice
Summary
NYSE Texas is updating its rules to make it clearer when and how trading stops and starts for stocks involved in big company changes. This helps traders know exactly what to expect, especially as trading hours expand to 23 hours a day, 5 days a week. These changes kick in right away and aim to keep the market smooth and fair for everyone involved.
Analyzed Economic Effects
2 provisions identified: 2 benefits, 0 costs, 0 mixed.
Mandatory Halts for Corporate Actions
If you own or trade listed securities, the Exchange will require a mandatory trading halt for securities (where the Exchange is the Primary Listing Market) subject to certain corporate actions. The rule explicitly covers nine categories — including trading symbol or CUSIP changes, dividends equal to at least 25% of the Official Closing Price, forward or reverse stock splits, De-SPAC transactions, spin-offs, security-type changes, mergers/mandatory exchanges, and other similar issuer events — and the Exchange must declare a halt when one of these conditions is met.
New Halt and Re-Opening Times
Under 23/5 Trading, the Exchange will implement these corporate-action regulatory halts after the end of the Late Trading Session and before overnight trading begins on other markets at 9:00 p.m. Eastern Time on the day before the action becomes market-effective. Trading in the halted securities will resume on the market-effective date with a Trading Halt Auction at 8:00 a.m. Eastern Time (and the Exchange's prior 9:00 a.m. reopen for reverse splits would move to 8:00 a.m. ET).
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Next: 2026-17363, Self-Regulatory Organizations; NYSE American LLC; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend Rule 7.18E Regarding Trading Halts
NYSE American is updating its rules to make trading stops and starts clearer when big company events happen, like mergers or stock splits. This change helps traders know exactly when trading pauses and resumes, especially as markets move toward nearly all-day trading. It affects anyone trading on NYSE American and kicks in right away, aiming to keep things smooth and fair without extra costs.