Nasdaq Prepares for Around-the-Clock Stock Trading with New Market Data Tools
New York, Tuesday, 18 August 2026.
Nasdaq is launching upgraded data services ahead of its planned shift to 23-hour weekday trading in late 2026, offering investors continuous pricing and seamless overnight global market access.
New Data Infrastructure for Extended Hours
Nasdaq Inc. is introducing enhanced market data products to facilitate a shift toward 23-hour trading operations [1]. The new suite, labeled “Plus,” includes Nasdaq TotalView Plus, Nasdaq Basic Plus, and Nasdaq Last Sale Plus [1]. These tools are designed to consolidate data across Nasdaq’s three U.S. equities exchanges to support the extended schedule [1]. This infrastructure aims to help business leaders and risk managers mitigate overnight market volatility by offering real-time pricing visibility [1].
Trading Schedule and Operational Details
The proposed trading window spans 23 hours per day, operating from 9:00 PM EST to 8:00 PM EST [1]. A one-hour maintenance pause is scheduled daily from 8:00 PM EST to 9:00 PM EST 23 [3]. This schedule effectively creates a Night Session from 9:00 PM to 4:00 AM ET and a Day Session from 4:00 AM to 8:00 PM ET [2]. Trades executed between 9:00 PM and midnight ET will be booked to the next business day, affecting settlement for some investors [2].
Regulatory Landscape and Market Impact
Implementation is targeted for December 6, 2026, contingent upon regulatory clearance [1][3]. The Securities and Exchange Commission must review and approve the changes before the infrastructure goes live [1]. Market analysts note that while liquidity may fragment, the move aligns U.S. markets closer with global time zones [2]. Only limit orders will be allowed in the Night Session to reduce execution risk [2].