What Is a Stop-Limit Order?
A stop-limit order combines a stop price with a limit price. It has two separate prices: the stop price, which activates the order, and the limit price, which establishes the acceptable execution price.
Once the stop price is reached, the order becomes a limit order rather than a market order.
Sell Stop-Limit Order Example
You own a stock trading at $50 and place a sell stop-limit order with a stop price of $45 and a limit price of $44.50, for 100 shares.
Possible sequence: the stock reaches $45; the stop activates; a sell limit order at $44.50 is created; the order can execute at $44.50 or higher, but it cannot execute below $44.50.
This provides price protection, but it creates a new risk: if the stock quickly falls below $44.50, the order may not execute — you could still own the shares while the price continues falling.
Buy Stop-Limit Order Example
A stock trades at $50. You want to buy after a breakout, but not at an unlimited price, so you place a stop price of $55 and a limit price of $55.50.
When the stock reaches the stop price, the order becomes a buy limit order. It can execute at $55.50 or lower, but it cannot execute above $55.50. If the stock jumps directly from $54.90 to $56, the order may remain unfilled.
Advantages and Risks of Stop-Limit Orders
Advantages
- Combines conditional activation with price control
- Prevents execution beyond the limit price
- Can reduce extreme slippage
- Useful when you have a firm maximum or minimum acceptable price
Risks
- The order may not execute
- A rapidly falling stock can move below a sell limit
- A rapidly rising stock can move above a buy limit
- The position may remain open during a major adverse move
- Choosing a very narrow distance between stop and limit increases non-execution risk
A stop-limit order may remain unexecuted when the market moves away from its limit price, particularly during fast-moving conditions.
Stop-Limit Order FAQs
What is the difference between stop price and limit price?
The stop price activates a stop-limit order. The limit price determines the lowest acceptable sell price or highest acceptable buy price after activation.
Should the stop and limit prices be the same?
They can be, but using identical prices can increase the risk of non-execution during a fast move. A trader may use a range between the stop and limit, although a wider range allows a potentially less favorable execution.
Can a stop-limit order fail to sell?
Yes. If the stock falls below the limit price before the order can execute, the order may remain unfilled while the market continues declining.
How is a stop-limit order different from a stop order?
A stop order becomes a market order once triggered, prioritizing execution. A stop-limit order becomes a limit order once triggered, prioritizing price control but risking non-execution.
Related Order Types
- Stop orders — trigger a market order instead of a limit order.
- Limit orders — price control without a trigger condition.
- Market orders — prioritize speed over an exact price.
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