Nasdaq is preparing to dramatically expand access to U.S. equities with a new overnight trading session scheduled to begin in December 2026. The move will allow investors to trade Nasdaq listed stocks and exchange traded products from 9:00 p.m. to 4:00 a.m. Eastern Time, adding seven hours of trading to the exchange’s existing schedule. Nasdaq expects the broader system to support trading for 23 hours a day, five days a week, with only a one-hour daily pause.
The planned overnight stock trading session represents a major shift in how investors access the U.S. stock market. Nasdaq currently supports premarket trading from 4:00 a.m. to 9:30 a.m. ET, regular trading from 9:30 a.m. to 4:00 p.m. ET and after-hours trading from 4:00 p.m. to 8:00 p.m. ET. The new 9:00 p.m. to 4:00 a.m. session will effectively close most of the remaining gap in the trading day.
Nasdaq’s official timetable currently points to Sunday, December 6, 2026, as the expected start date for the 23 hour trading schedule, although the launch depends on the readiness of market infrastructure, including the Securities Information Processor (SIP), and applicable regulatory requirements.
How Nasdaq’s Overnight Trading Will Work
Under the new Nasdaq trading schedule, the market will operate from 9:00 p.m. Sunday through 8:00 p.m. Friday, creating a near-continuous U.S. stock market. A one hour pause from 8:00 p.m. to 9:00 p.m. ET will remain each day for maintenance, processing and the transition between trading dates. Nasdaq’s regular 9:30 a.m. to 4:00 p.m. session will remain unchanged and will continue to provide the primary price discovery reference for the market.
The overnight session will also introduce specific rules around trade dates. Nasdaq’s technical documentation states that trades executed between 9:00 p.m. and midnight will receive the next calendar day’s trade date, while trades from midnight through 8:00 p.m. will use the current day’s trade date. Nasdaq will also cancel outstanding orders at the beginning and end of the relevant trading sessions.
The expansion does not mean every Nasdaq related market will operate around the clock. Nasdaq Texas and Nasdaq PSX will maintain their existing schedules, while Nasdaq’s options exchanges will also continue operating under their current hours. The overnight expansion specifically targets the Nasdaq Stock Market and eligible equity securities and exchange traded products.
Why Nasdaq Is Expanding Trading Hours
Nasdaq says the expansion responds to growing global demand for U.S. equities. Investors outside the United States will gain easier access to Nasdaq listed stocks during their local daytime hours, potentially making U.S. equities more accessible to international investors without requiring them to trade during the traditional U.S. session.
The move also reflects increasing competition among exchanges and trading platforms for overnight order flow. Other market operators are pursuing similar near-24 hour models as investors become increasingly accustomed to markets that operate continuously, particularly in the digital asset sector. Cboe, for example, has also been preparing for near 24 hour U.S. equities trading, highlighting a broader industry shift toward extended market access.
However, longer trading hours could also introduce new challenges. Overnight markets can experience lower liquidity, wider spreads and greater price volatility than the regular U.S. session. Nasdaq’s expanded schedule therefore represents not simply more time to trade but a significant change in how global investors may react to breaking news, corporate announcements and international market developments before the traditional Wall Street session begins.
The December launch could ultimately transform U.S. stock trading into a market that is accessible almost continuously throughout the business week. For international investors, technology platforms and global institutions, Nasdaq’s 23 hour schedule could make U.S. equities easier to trade across time zones while increasing competition among exchanges for global order flow and price discovery.