Simple definition
A limit order tells your broker to buy or sell only at a price you set or better, never worse. You gain control over the price but give up the certainty that the trade will happen. It's like telling a shopkeeper you'll pay no more than a set amount: if the price reaches your limit you buy, and if it never does, you simply don't.
Why it matters
Limit orders protect you from paying more, or selling for less, than you intend, which matters most in volatile or thinly traded stocks. The trade-off is that your order may not fill if the market never reaches your price, so you weigh price control against the chance of missing the trade.
Real-life example
A stock trades at $52, but you'll only buy at $50 or less. You set a buy limit order at $50. It fills only if the price drops to $50 or lower; otherwise it stays unfilled.
Common mistakes
- Setting a limit so far from the market that it never fills.
- Assuming a limit order is guaranteed to execute.
- Forgetting an unfilled order may expire at the day's end.
- Using a limit order when getting filled quickly matters most.
Pro tips
- Use limit orders for volatile or thinly traded stocks to control price.
- Set a realistic limit near the current price if you want it to fill.
- Check whether your order is good for the day or until canceled.
- Accept that price control means your order might not execute at all.
Related Money Dictionary terms
- Market OrderAn instruction to buy or sell an investment right away at the best price currently available.
- Stop OrderAn order that turns into a market order once an investment hits a set trigger price, often used to limit losses.
- Bid-Ask SpreadThe gap between the highest price a buyer will pay and the lowest a seller will accept for an investment.
- Day OrderA buy or sell instruction that expires at the end of the trading day if it hasn't filled.
- Stop-Limit OrderAn order combining a trigger price with a price limit, giving you more control than a plain stop order.
- StockA share of ownership in a company that you can buy and sell, giving you a small stake in its profits and growth.
Frequently asked questions
Is a limit order guaranteed to fill?
No. A limit order only executes at your set price or better, so if the market never reaches that price, it simply won't fill. You get control over price at the cost of certainty. Check whether it's a day order or good-till-canceled so you know when it expires.
When should I use a limit order instead of a market order?
Use a limit order when the exact price matters more than speed, such as with volatile or thinly traded stocks where prices can jump. A market order is better when you simply want the trade filled promptly. The choice comes down to price control versus certainty of execution.
What happens if my limit order doesn't fill by the end of the day?
It depends on the order's duration. A day order expires unfilled at the close of trading, while a good-till-canceled order stays active for a set period until it fills or you cancel it. Always confirm which type you placed so you're not surprised by an expired or lingering order.
Knowing what Limit Order means is knowledge — the first half. A brick gets placed when you act on it: practice placing a limit order at a set price on your next planned trade.
Sources & references
More in Investing
Plain-English education — not personalized legal, tax, or investment advice.