# 2026-19510: NYSE National OKs 23-Hour Trading: Sleep is for Suckers!

2026-19510, Self-Regulatory Organizations; NYSE National, Inc.; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Amend Rule 7.10 Clearly Erroneous Executions, is a Federal Register notice from Securities and Exchange Commission published 2026-09-24, effective 2026-12-06; PRIA reads it as touching household money (as of 2026-10-01).

- Canonical: https://policyrisk.com/federal-register/2026-19510
- As of: 2026-10-01
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-19510
- Title: Self-Regulatory Organizations; NYSE National, Inc.; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Amend Rule 7.10 Clearly Erroneous Executions
- Type: Notice
- Agencies: Securities and Exchange Commission
- Citation: 91 FR 60673
- Published: 2026-09-24
- Effective: 2026-12-06
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-10-01

## In one line

NYSE National OKs 23-Hour Trading: Sleep is for Suckers!

## Summary

NYSE National is updating its rules about fixing big trading mistakes to match new 23-hour, 5-day trading hours approved by the SEC. This change helps keep trades fair and clear during extended hours, affecting traders using the Exchange. The new rule kicks in right away with no extra costs, making the market smoother and more reliable.

## Effects PRIA read

- Overnight trades generally not reviewable: benefit, low. If a trade on NYSE National executes during LULD Protected Hours (which includes the Core Trading Session and Overnight Protected Hours from 9:00 p.m. ET through 4:00 a.m. ET), that trade generally will not be eligible for clearly erroneous review. This extends the Exchange’s existing rule that app…
- Overnight Percentage Parameter applies: benefit, low. The rule explicitly incorporates the Overnight Percentage Parameter (from Section VIII of the LULD Plan) when deciding whether a trade is eligible for clearly erroneous review during Overnight Protected Hours. That means the same kind of percentage-threshold test used in the Core Trading Session wi…
- Rights/warrants keep review protections overnight: benefit, low. Transactions in NMS Stocks that are not subject to the LULD Plan (for example, rights and warrants) executed during Overnight Protected Hours remain eligible for clearly erroneous review and will be reviewed using the same Numerical Guidelines that apply to the Early and Late Trading Sessions. The…
- Overnight Price Bands initially ±20%: benefit, low. The LULD Plan’s Overnight Price Bands, as approved by the Commission, were proposed to be temporary static bands 20% above and below two reference points, and those Overnight Price Bands will apply during Overnight Protected Hours (9:00 p.m. ET through 4:00 a.m. ET). The Commission approved this ap…

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## Sources
- [2026-19510 on federalregister.gov](https://www.federalregister.gov/documents/2026/09/24/2026-19510/self-regulatory-organizations-nyse-national-inc-notice-of-filing-and-immediate-effectiveness-of)
- [2026-19510 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-09-24/pdf/2026-19510.pdf)

## Related
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- [Next: 2026-19511, Self-Regulatory Organizations; NYSE Texas, Inc.; Notice of Filing and Immediate…](https://policyrisk.com/federal-register/2026-19511)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-19510 (as of 2026-10-01).