SEC Trading and Markets Director Outlines Readiness Path for 23-by-5 Trading and Possible 24-by-7 Ma
SEC Division of Trading and Markets Director Jamie Selway used a roundtable to signal strong staff support for extended-hours equity trading, noting that market data infrastructure is scheduled to expand to 23 hours a day, five days a week on December 6, 2026. The remarks are not a rule or formal guidance, but they show where the Division's priorities lie and what it expects of the industry. Compliance teams should treat them as a prompt to confirm operational, surveillance, and investor-disclosure readiness for overnight trading.


