The main U.S. stock market session (NYSE and Nasdaq) opens at 9:30 a.m. Eastern Time and closes at 4:00 p.m. Eastern Time, Monday through Friday, excluding market holidays.

Quick Scoop: When Does the Stock Market Open?

Core US Market Hours

  • Regular US stock market hours (NYSE and Nasdaq): 9:30 a.m. – 4:00 p.m. Eastern Time (ET) , Monday to Friday.
  • Closed on weekends and most US federal holidays (like New Year’s Day, MLK Day, Presidents Day, Independence Day, Thanksgiving, Christmas, etc.).
  • On certain days (e.g., the day after Thanksgiving, Christmas Eve in 2026), markets close early at 1:00 p.m. ET.

Think of the regular session as the “main show” where most of the volume and tightest spreads usually happen.

Pre-market and After-hours (Extended Hours)

Many brokers also let you trade outside the regular session:

  • Pre-market: roughly 4:00 a.m. – 9:30 a.m. ET on Nasdaq and many platforms.
  • After-hours: roughly 4:00 p.m. – 8:00 p.m. ET.

Key points about extended hours:

  • Lower liquidity and wider spreads are common in these sessions.
  • Prices can sometimes move sharply on news releases (earnings, economic data) before or after the regular session.

Today / “Is the Market Open?”

  • If today is a weekday and not a US market holiday, the market will open at 9:30 a.m. ET.
  • If it is a listed holiday (for example, New Year’s Day or Thanksgiving), the market is closed all day; on some special days it may close early at 1:00 p.m. ET instead.

Time Zones and Global View

If you’re outside the US, those same hours translate into evening or night trading:

  • Example: some guides show that for Asia-Pacific traders (like Singapore or Sydney), US market hours fall late at night or early morning local time, so many place orders in advance rather than staying up to watch every tick.

Mini FAQ

  • Q: When does the US stock market open?
    A: 9:30 a.m. ET , Monday–Friday, except holidays.
  • Q: Can I trade US stocks before 9:30 a.m.?
    A: Often yes, via pre-market sessions starting around 4:00 a.m. ET, depending on your broker and the security.
  • Q: Can I trade after 4:00 p.m.?
    A: Many platforms offer after-hours trading until about 8:00 p.m. ET.

TL;DR: When people ask “when does the stock market open,” they almost always mean the US regular session at 9:30 a.m. Eastern Time , Monday through Friday, excluding holidays.

Information gathered from public forums or data available on the internet and portrayed here.