One hour to eat, no time to sleep. That’s real progress!
— Barchart (@Barchart) September 18, 2026
The weekly cycle will kick off Sunday at 9 p.m. ET and run continuously, minus the nightly maintenance window, through Friday at 8 p.m. ET. A new “Night Session” covers the stretch from 9 p.m. to 4 a.m. ET each trading day, opening US equities to investors in Asia and Europe during their local business hours.
Nasdaq received accelerated approval for its extended-hours plan around April 2026. NYSE Arca is also among the major exchanges preparing for the launch.
The SEC approved amendments to the Securities Information Processors, or SIPs, on June 26, 2026. SIPs are the systems that consolidate and distribute real-time quote and trade data across exchanges.
https://cryptobriefing.com/us-markets-23-hour-trading-expansion/
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