SEC Sets September Roundtable on 24-Hour Stock Trading

US brokers and trading venues have steadily expanded premarket, after-hours and overnight access as global investors seek to trade American equities across time zones. A shift toward 24-hour stock trading would require exchanges, brokerages and clearing systems to strengthen liquidity management, risk controls and operational resilience, while regulators ensure that investor protections remain effective during less liquid overnight sessions.

The US Securities and Exchange Commission will hold a public roundtable on Sept. 17, 2026, to examine market readiness and operational resilience as equities move toward round-the-clock trading. SEC Chair Paul S. Atkins said US markets are entering an era in which trading no longer stops at night, adding that the agency will seek to support innovation while assessing the infrastructure, safeguards and investor protections needed for 24-hour access.