SEC Announces Agenda and Panelists for Roundtable on Preparations for 24-Hour Trading

The Securities and Exchange Commission (SEC) recently announced details for its Sept. 17, 2026, roundtable discussion on preparations for 24-hour trading. The event will take place at the SEC's headquarters, located at 100 F Street, N.E., in Washington, D.C., from 10 a.m. to 4 p.m. ET, with doors opening at 9 a.m. ET. The roundtable will be open to the public and will be webcast live on the SEC's website.

Attendees can participate in person or online; in-person visitors should register on the SEC's registration page. No registration is required for online attendees, and a link to watch the event will be available on September 17 at www.sec.gov. A recording of the event will also be made available on the SEC's website at a later date.

The agenda includes panelists from the SEC, Jamie Selway from the SEC's Division of Trading and Markets, Dan Mathisson from the SEC's Division of Trading and Markets' Office of Analytics and Research, Jon Kroeper, Katie Kolchin, Patrick Norton, Jim Toes, Peggy Sullivan, and Adrian Griffiths. The discussions will cover various aspects of 24-hour trading, including exchange and broker-dealer readiness, overnight surveillance, closing-price processes, clearance and settlement changes, investor-protection practices, systems readiness, Regulation SCI considerations, failover and capacity planning, market-data continuity, shortened maintenance windows, cybersecurity, staffing models for overnight operations, expected impacts on liquidity and capital formation, and future regulatory and market-structure initiatives.