On July 31, 2026, Nasdaq officially announced that from October 1, 2026, it will extend trading hours for all stocks and ETFs on its main board to 24 hours a day, five days a week, with continuous trading. This means investors can buy or sell at any time from Sunday evening to Friday afternoon New York time. As the world's first top-tier exchange to offer round-the-clock trading, Nasdaq's move quickly became the focus of global capital markets.
U.S. Stocks See Historic Change: The 24-Hour Trading Era Arrives
In the announcement, Nasdaq said the decision to expand hours stems from strong demand from global investors for extended U.S. stock trading sessions. In recent years, as the internationalization of the U.S. stock market has deepened, investors from Asia-Pacific, Europe, and the Middle East now account for more than 35% of total U.S. stock trading volume. However, due to traditional trading hours (9:30 a.m. to 4:00 p.m. ET), non-American investors often have to stay up late to watch the market, or can only participate through pre-market and after-hours trading, which is far less efficient in liquidity and price discovery than regular sessions. Nasdaq President Adena Friedman said: “We are building a truly borderless capital market, allowing global investors to share in the dividends of U.S. economic growth in the most direct way, no matter where they are.”
According to the plan, the new trading system will retain the existing central limit order book mechanism and be equipped with round-the-clock real-time monitoring to ensure fair and orderly markets. At the same time, to safeguard liquidity and price continuity, Nasdaq will bring in more market makers and adjust trading clearing and settlement arrangements. Industry analysts noted that this change will not only significantly boost trading activity in U.S. stocks, but may also prompt competitors such as the New York Stock Exchange to follow suit, profoundly reshaping the global securities market landscape.
Why Can 24-Hour Trading Amplify U.S. Stocks' Advantages?
For a long time, U.S. stocks have attracted global capital mainly due to their deep liquidity, robust investor protection systems, and a rich array of high-quality targets. The 24-hour trading system further amplifies these advantages across multiple dimensions.
- Liquidity upgraded further: Expanding trading hours to round-the-clock allows buyers and sellers in different time zones to match at any time, narrowing bid-ask spreads and reducing impact costs. For institutional investors, this eliminates the previous hassle of adjusting positions due to time mismatch.
- Pricing efficiency and risk hedging: When major events (such as Fed rate decisions or tech giants' earnings) occur during non-U.S. hours, investors can react immediately, avoiding uncertainty caused by overnight gaps. This continuous pricing mechanism also makes U.S. stocks a “barometer” of global risk appetite.
- Innovation and competitiveness: Nasdaq's bold reform marks the continued institutional and technological leadership of U.S. capital markets. In terms of trading hours, settlement cycles, and investor access, U.S. stocks have always been at the global forefront, which is precisely one of the key factors attracting cross-border capital.
A New Window for Southeast Asian Investors
For high-net-worth individuals and institutional investors in the ASEAN region, the convenience brought by 24-hour trading cannot be ignored. Previously, investors in Singapore and Kuala Lumpur who wanted to trade U.S. stocks usually had to stay up late after the U.S. market opened in the evening, or check after-hours results early the next morning, greatly limiting trading efficiency and capital utilization. Under the new system, Southeast Asian investors can participate in U.S. stock trading during daytime working hours, without needing to “turn day and night upside down” to watch the market.
A fund manager at UOB Asset Management said: “Nasdaq's new arrangement allows us to implement global strategies more flexibly. Especially when strong news emerges in Asian markets, we no longer have to wait until the U.S. market opens late at night to execute rebalancing. This change is expected to attract more retail investors and small institutions that were previously deterred from U.S. stocks.” In fact, enthusiasm for U.S. stock investment in Southeast Asia has continued to heat up in recent years. Data from the Singapore Exchange showed that in the first half of 2026, the amount of U.S. stocks bought by local investors through broker channels increased by more than 40% year-on-year, while net subscriptions to cross-border U.S. equity ETFs also hit a record high.
Not Without Risk: Investors Should Stay Rational
Although round-the-clock trading opens up more opportunities, professionals also caution that extended trading hours do not mean the market is always deeply liquid. Trading volume during non-North American hours may remain relatively thin, which can amplify stock price fluctuations. In addition, cross-time-zone trading means investors must cope with derivative risks such as currency fluctuations and margin calls. Therefore, Southeast Asian investors should strengthen risk control awareness and manage positions reasonably while enjoying the convenience.
From an asset allocation perspective, U.S. stocks are still regarded as one of the most certain “core assets” in global portfolios. The profitability of tech giants, the resilience of the U.S. economy driven by innovation, and the continuously improving market infrastructure all make “choosing U.S. stocks” an unavoidable element for more international investors when building portfolios. Nasdaq's “small step” may well be a rehearsal for the widespread evolution of global stock market trading patterns in the future, and investors in the midst of this change are standing at a historic juncture.
