The Harvard Law School Forum on Corporate Governance https://corpgov.law.harvard.edu The leading online blog in the fields of corporate governance and financial regulation. Wed, 21 Oct 2026 11:32:39 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.13 https://corpgov.law.harvard.edu/wp-content/uploads/2024/02/cropped-photography-4-e1706898544564-1-32x32.png NYSE Arca and Nasdaq to Launch Extended Trading: What Companies Should Consider – The Harvard Law School Forum on Corporate Governance https://corpgov.law.harvard.edu 32 32 NYSE Arca and Nasdaq to Launch Extended Trading: What Companies Should Consider https://corpgov.law.harvard.edu/2026/10/21/nyse-arca-and-nasdaq-to-launch-extended-trading-what-companies-should-consider/?utm_source=rss&utm_medium=rss&utm_campaign=nyse-arca-and-nasdaq-to-launch-extended-trading-what-companies-should-consider https://corpgov.law.harvard.edu/2026/10/21/nyse-arca-and-nasdaq-to-launch-extended-trading-what-companies-should-consider/#respond Wed, 21 Oct 2026 11:30:41 +0000 https://corpgov.law.harvard.edu/?p=184378?d=20261020181012EDT Posted by Marc S. Gerber and Caroline S. Kim, Skadden, Arps, Slate, Meagher & Flom LLP, on Wednesday, October 21, 2026
Editor's Note:

Marc S. Gerber is a Partner and Caroline S. Kim is a Counsel at Skadden, Arps, Slate, Meagher & Flom LLP.  This post is based on a Skadden memorandum by Mr. Gerber, Ms. Kim, Brian V. Breheny, Raquel Fox, Andrew J. Brady and Nicholas D. Lamparski, all at Skadden.

Executive Summary

  • What’s new: Beginning December 6, 2026, both the Nasdaq Stock Market and NYSE Arca are expected to extend trading hours to 23 hours per day, five days per week (23×5 trading).
  • Why it matters: The 23×5 trading expansion would add an overnight session from Sunday through Thursday from 9 p.m. to 4 a.m. ET, with a mandatory one-hour trading pause Monday through Thursday evening between 8 p.m. and 9 p.m. ET.
  • What to do next: Companies should consider the potential impacts on corporate policies and transaction documents that reference exchange-defined trading sessions and monitor disclosure practices in light of 23×5 trading.

(more…)

]]> https://corpgov.law.harvard.edu/2026/10/21/nyse-arca-and-nasdaq-to-launch-extended-trading-what-companies-should-consider/feed/ 0