2026-19511NoticeWallet

Texas Stocks Go 23/5: Yeehaw to All-Night Trading!

Published Date: 9/24/2026

Notice

Summary

NYSE Texas is updating its rules to handle mistakes in stock trades better during the new 23-hour, 5-day trading week. This change affects traders using the Exchange by adding clearer guidelines for fixing errors during extended trading hours. The new rule kicks in right away, helping keep trading fair and smooth without extra costs.

Analyzed Economic Effects

3 provisions identified: 2 benefits, 0 costs, 1 mixed.

Clearing Erroneous-Trade Rules Extended Overnight

If you trade on NYSE Texas during Overnight Protected Hours (defined as 9:00 p.m. ET through 4:00 a.m. ET), the Exchange is changing Rule 7.10 so that transactions executed while LULD Price Bands are available generally will not be reviewable as "clearly erroneous." This extension becomes operative at the start of 23/5 Trading on December 6, 2026.

Overnight Price Bands Set at ±20%

The LULD Plan's Overnight Price Bands that apply during Overnight Protected Hours (9:00 p.m. ET through 4:00 a.m. ET) were approved to be initially temporary static bands set 20% above and 20% below two reference points. The Exchange's Rule 7.10 amendments incorporate the Overnight Percentage Parameter so that clearly erroneous review tests reference the Overnight Percentage Parameter for the Overnight Protected Hours. These changes are tied to the start of 23/5 Trading on December 6, 2026.

Rights/Warrants Eligible for CEE Overnight Review

For NMS stocks that are not subject to the LULD Plan (for example, rights and warrants), transactions executed during Overnight Protected Hours (9:00 p.m. ET through 4:00 a.m. ET) will be eligible for clearly erroneous execution (CEE) review and will be judged by the same Numerical Guidelines that apply to the Early and Late Trading Sessions. This change takes effect at the start of 23/5 Trading on December 6, 2026.

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Key Dates

Published Date
Effective Date
9/24/2026
12/6/2026

Department and Agencies

Department
Independent Agency
Agency
Securities and Exchange Commission
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