The New York Stock Exchange and its affiliated exchanges filed immediately effective rule changes to preserve the 4:00 a.m. ET resumption time following a Level 3 market-wide circuit breaker halt when the industry expands to 23-hour-a-day, five-day-a-week trading.

SEC Chief Economist Joshua White warned that AI has heightened the importance of high-quality, structured regulatory data, telling the Investment Company Institute's Compliance, Risk, and Legal Conference that machines, not just people, are now a primary audience for financial disclosures.

Congress passed and presented to President Trump the Lindsey O. Graham Sanctioning Russia and Iran Act of 2026, which imposes new penalties on officials and entities from Russia, restricts investment and trade tied to that nation, and extends a 1996 Iran measure through 2031.

The FDIC proposed a rule to give state-chartered banks operating outside their home jurisdiction the same treatment as national banks under host jurisdiction law.

The SEC approved amendments to MSRB dealer supervision requirements that clarify which public finance activities trigger supervisory office designation and that expand a remote-work exclusion for non-primary residences.