You can place orders after hours, but they execute differently than daytime trades

Yes, you can buy stocks after the regular market closes at 4 p.m. Eastern time. Most brokerages let you place orders during extended hours trading, which includes a pre-market session (starting as early as 4 a.m.) and an after-hours session (until 8 p.m.). However, your order does not work the same way it does during the standard 9:30 a.m. to 4 p.m. window. After-hours trades happen at different prices, with wider gaps between the bid and ask price, lower trading volume, and no may provide your order will fill at all.

The key difference: during regular hours, your order to buy 100 shares at market price will almost certainly execute within seconds. After hours, the same order might sit unfilled for minutes, execute at a price much higher than you expected, or not execute at all. This happens because fewer traders are active, so there are fewer buyers and sellers to match your order against.

Key Takeaways

  • Extended hours trading runs from 4 a.m. to 8 p.m. Eastern time, but most brokerages require you to opt in or use a specific order type to trade outside 9:30 a.m. to 4 p.m.
  • After-hours orders often execute at worse prices than daytime orders because fewer traders are active and price swings are wider.
  • Market orders (buy at any price) are riskier after hours; limit orders (buy only at a price you set) are safer but may not fill.
  • News that breaks after 4 p.m. can cause large price moves before the market opens the next morning, so after-hours trading can be a way to react quickly — but at higher risk.

How extended hours trading works at your brokerage

Most major brokerages — Fidelity, Charles Schwab, E-Trade, Interactive Brokers, Robinhood — offer after-hours trading, but the process varies. Some let you trade automatically during extended hours if you place an order after 4 p.m. Others require you to select "extended hours" or "after-hours" as an order option before you submit. A few brokerages do not offer it at all, or only to accounts with a minimum balance.

Check your brokerage's website or call their support line to confirm whether after-hours trading is available on your account and what steps you need to take to use it. The setting is usually in your account preferences or order entry screen, not buried in a menu. If your brokerage does not offer it, you cannot trade after hours through that account — you would have to switch brokerages or wait until the market opens.

Why prices move differently after hours

During the regular trading day, millions of shares trade every minute across thousands of traders. The price you see on your screen reflects the last trade that happened, and there are always buyers and sellers ready to trade near that price. After hours, the number of active traders drops sharply. A single large order can move the price significantly because there are fewer people on the other side to absorb it.

This creates two problems. First, the bid-ask spread — the gap between what buyers will pay and what sellers want — widens. During the day, you might see a stock bid at $50.00 and ask at $50.01. After hours, the same stock might be bid at $49.95 and ask at $50.10. If you place a market order to buy, you pay the ask price, which could be much higher than you expected. Second, your order might not fill at all if no one is willing to trade at your price.

Market orders versus limit orders after hours

A market order tells your brokerage to buy or sell at whatever price is available right now. During regular hours, this is usually safe — your order fills almost instantly at a reasonable price. After hours, a market order is risky. You might intend to buy at $50 but end up paying $50.50 or more because that is the only price available. Some brokerages warn you before executing an after-hours market order, but not all.

A limit order lets you set a maximum price you will pay (for a buy) or a minimum price you will accept (for a sell). If no one will trade at your price, the order simply does not fill. After hours, a limit order is the safer choice. You might set a limit to buy at $50.00, and if the stock is only offered at $50.10, your order stays open unfilled. You avoid overpaying, but you also might miss the trade entirely. Most brokerages let you set a limit order for extended hours trading with no extra steps.

When after-hours trading makes sense

After-hours trading is most useful when a company releases earnings or news after the market closes. If a stock you own drops 10 percent in after-hours trading because of bad earnings, you might want to sell immediately rather than wait until 9:30 a.m. the next morning, when the price could fall further. Conversely, if a stock jumps after good news, you might want to buy before the opening bell. In both cases, you are reacting to information that the daytime market has not yet fully priced in.

After-hours trading is less useful for routine buys and sells. If you are buying a stock to hold for months or years, waiting six hours until the market opens will not change your long-term outcome, and you will get a better price during regular hours. The same applies if you are selling a stock that is not in the news. The risk of a bad fill after hours usually outweighs any benefit of trading a few hours earlier.

Risks specific to after-hours trading

Beyond price swings and wide spreads, after-hours trading carries other risks. Some brokerages do not let you cancel an after-hours order once it is submitted, or cancellation takes longer than during the day. If you change your mind seconds after placing an order, you might be stuck. Additionally, if you place an after-hours order that does not fill, it may automatically convert to a regular daytime order the next morning — or it may expire. Check your brokerage's rules before you trade.

Volatility is also higher after hours. A stock can swing 5 or 10 percent in minutes because a single large trade or a piece of news can move the price sharply with few traders to stabilize it. If you are not comfortable with that level of movement, stick to regular hours. Finally, some stocks have very little after-hours volume, meaning your order might not fill at any price. Smaller or less popular stocks are especially risky to trade after hours.

Pre-market trading in the morning

Pre-market trading starts as early as 4 a.m. and runs until 9:30 a.m. The same rules apply: lower volume, wider spreads, and higher volatility. Pre-market trading is useful if you want to react to overnight news before the regular market opens. For example, if a stock falls sharply in pre-market trading because of bad international news, you can sell before the 9:30 a.m. opening bell. However, the price you get in pre-market is often worse than the price at the open, so you are paying for speed.

Many traders use pre-market orders as a way to set a price they want to buy or sell at before the market opens, knowing the order might not fill. If it does fill, great — they got their price before the crowd. If it does not, they cancel and place a regular order during the day. This is a reasonable strategy if you understand the risks and use limit orders rather than market orders.

Frequently Asked Questions

What if my after-hours order does not fill by the time the market closes?

That depends on your brokerage. Some orders automatically convert to regular daytime orders the next morning, while others expire at the end of the after-hours session. Check your brokerage's documentation or call support to confirm. If you want the order to carry over, you may need to select "good-til-canceled" or a similar option when you place it.

Can I use stop-loss orders after hours?

Most brokerages do not let you place stop-loss orders during extended hours, or they only work during regular trading hours. A stop-loss order tells your brokerage to sell if the price drops to a certain level. After hours, the order might not trigger even if the price falls below your stop, because the order is not actively monitoring the market. Check your brokerage's rules before relying on a stop-loss after hours.

Why would I ever use a market order after hours if limit orders are safer?

You would use a market order if you need to trade immediately and are willing to accept whatever price is available. For example, if a stock is crashing after bad news and you want out no matter what, a market order guarantees the trade will fill. A limit order might not fill at all, leaving you holding a falling stock. The trade-off is speed and certainty versus price.

Do I need a special account to trade after hours?

Most brokerages let any account holder trade after hours, but some require a minimum account balance or a certain account type. A few brokerages restrict after-hours trading to experienced traders or accounts with a minimum of $25,000. Check your brokerage's requirements before you open an account if after-hours trading is important to you.

What happens if the stock price gaps up or down overnight?

If a stock closes at $50 during regular hours but opens at $55 the next morning because of overnight news, any after-hours order you placed at $50 will not fill — the price has moved past your limit. You would have to place a new order at the new price. This is why after-hours trading can be risky: the price can move significantly between the close and the next morning's open, and your order might be left behind.