Nasdaq Seeks Approval for Extended Trading Hours: US Tech Benchmark Could Operate 23 Hours Daily

Investors may soon have the opportunity to trade on the Nasdaq for nearly 23 hours a day, as the exchange seeks regulatory approval for near-continuous trading. This move comes in response to growing international interest in U.S. equities, prompting exchanges to reconsider traditional trading hours. Nasdaq, which lists major technology companies like Nvidia, Apple, and Amazon, has submitted a proposal to the U.S. Securities and Exchange Commission (SEC) that could significantly extend trading hours, potentially allowing for round-the-clock access for global investors.

Proposed Trading Schedule

Under the new proposal, Nasdaq plans to extend its trading hours from the current 16 hours to 23 hours each day. Currently, the exchange operates a pre-market session from 4 a.m. to 9:30 a.m. Eastern Time, followed by a regular trading session from 9:30 a.m. to 4 p.m., and a post-market session that lasts until 8 p.m. The proposed structure would streamline this into two extended sessions: a day session running continuously from 4 a.m. to 8 p.m., followed by a one-hour operational break. A night session would then commence at 9 p.m. and continue until 4 a.m. the next day. Trades executed between 9 p.m. and midnight would be recorded for the following day. The trading week would start at 9 p.m. on Sunday and conclude at 8 p.m. on Friday, while the opening and closing bells would remain unchanged at 9:30 a.m. and 4 p.m., respectively.

Infrastructure and Market Impact

The shift to continuous trading hinges on necessary infrastructure upgrades, particularly to the securities information processor that consolidates stock prices across U.S. exchanges. The U.S. Depository Trust and Clearing Corporation is also expected to implement nonstop stock clearing by the end of 2026. Proponents of extended trading hours argue that this change would enable investors outside the U.S. to react more swiftly to global events that occur when U.S. markets are closed. However, Wall Street banks have expressed concerns regarding potential issues such as thinner liquidity, increased volatility, and the overall commercial viability of nonstop trading.

Chuck Mack, senior vice president of North American markets at Nasdaq, noted that demand for overnight trading has increased, even though trading volumes during extended hours have historically been lower. Many investors currently utilize off-exchange platforms and alternative trading systems to access markets outside of regular hours. Mack emphasized that global investors are eager to engage with the U.S. market on their own terms and within their own time zones.

A Shift in Market Dynamics

The proposed changes reflect a broader trend towards globalization in the U.S. markets, which now account for nearly two-thirds of the global listed market value. According to Nasdaq data, overseas investors held $17 trillion worth of U.S. equities last year. This growing international interest has prompted exchanges to adapt their trading models to meet the needs of global investors.

Historically, U.S. exchange trading hours have remained largely unchanged for over a century, dating back to when transactions were conducted in person on trading floors. Although trading is now predominantly electronic, the market schedules have evolved little over time. Earlier this year, Nasdaq also filed with regulators to permit trading in tokenized stocks, reflecting the increasing interest in tokenization amid a relaxation of crypto-related regulations. As the landscape of trading continues to evolve, Nasdaq’s proposal for extended trading hours could mark a significant shift in how global investors interact with U.S. markets.


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