Pre-Market & After-Hours Trading
The stock market is open from 9:30am to 4:00pm ET on weekdays. But trading does not stop there. Pre-market and after-hours sessions let traders buy and sell stocks outside those core hours, and knowing how they work can make a real difference in how you react to news, earnings, and overnight moves. If you are still deciding between stocks and options, check out our guide on stocks vs. options trading.
Pre-Market Trading (4:00am to 9:30am ET)
Pre-market trading begins as early as 4:00am ET and runs until the regular session opens at 9:30am ET. Not every broker opens access at 4:00am. Some start at 5:00am or later, so confirm what your platform allows before planning around it.
Pre-market is where early movers happen. Earnings reports, analyst upgrades, FDA decisions, and geopolitical news all hit before the bell. Stocks can gap significantly during this window. Knowing how to find stocks to trade that are likely to move on overnight news is a key skill for traders who work the pre-market session.
After-Hours Trading (4:00pm to 8:00pm ET)
After-hours trading starts when the regular session closes at 4:00pm ET and continues until 8:00pm ET. Most major brokers support after-hours trading, though not all allow the full window.
Companies frequently release earnings after the close to give investors time to process the numbers before the next open. If you trade options around earnings, it is important to know that options cannot be traded in extended hours — you will need to wait for the regular session open to act on after-hours moves.
Why Companies Release News Outside Regular Hours
Companies strategically time major announcements for pre-market or after-hours windows to reduce panic. When earnings come out mid-session, traders react in real time with less information and the result is often an overreaction. Releasing outside regular hours gives everyone time to form a more measured view. For a deep dive on extended hours history and mechanics, Investopedia covers it well.
What to Watch Out For in Extended Hours
Extended hours trading comes with real risks that do not exist during the regular session:
- Low liquidity. Fewer participants means fewer shares changing hands. Large orders can move the price meaningfully.
- Wide bid-ask spreads. The gap between what buyers will pay and what sellers want is often much larger than during regular hours. That spread is a direct cost on every trade.
- Volatile price moves. Thin volume amplifies swings. A stock that looks up 8% pre-market may open at a very different price once real volume floods in.
- Order type restrictions. Many brokers require limit orders during extended hours. Review the order types available for stock and options trading so you are not caught off guard.
Treat every pre-market and after-hours move as preliminary data, not a final verdict, until the regular session opens.
Frequently Asked Questions
Can I trade options during pre-market and after-hours sessions?
No. Options trading is limited to regular market hours (9:30am to 4:00pm ET). Pre-market and after-hours sessions are for stock trades only. If a company reports earnings after hours and you want to position in options, you will need to wait until the next morning's open.
Why are bid-ask spreads wider during extended hours?
Spreads widen because there are fewer market participants. During regular hours, high volume creates tight competition between buyers and sellers. In extended sessions, that competition drops off sharply and market makers widen their spreads to compensate for the added risk.
Should I react immediately to after-hours earnings moves?
Not usually. After-hours moves are based on limited volume and often overshoot in both directions. Wait for the regular session open to see where price stabilizes before committing capital.
What is the difference between extended hours and 24-hour trading?
Extended hours covers pre-market (4:00am to 9:30am ET) and after-hours (4:00pm to 8:00pm ET). True 24-hour trading allows trades overnight and on weekends as well. Read our full breakdown of the rise of 24-hour stock trading to understand how it differs and what it means for retail traders.
Do all brokers offer the same extended hours access?
No. Access varies significantly by broker. Some offer the full pre-market window starting at 4:00am ET, others start at 5:00am or later. After-hours cutoffs also differ. Always confirm your broker's specific rules before trading outside regular hours. If you are evaluating brokers, see our trade alert and pricing page for more context on what to look for in a trading platform.
The PPP Team brings decades of combined experience from some of the most well-known companies in the trading industry. Founded in 2020, Pure Power Picks delivers options trading education, scanner reviews, and trade alerts to help everyday traders develop real skills. Our content is strictly educational.