Key Takeaways
- A stop loss closes a trade automatically at a price set in advance, below the entry price on a long position and above it on a short position.
- A standard stop loss becomes a market order at the stop price, so the trade closes at the next available price.
- The exit price of a standard stop loss is not guaranteed, and a weekend gap in the GBP/USD example turned a planned 40 pip loss into about 70 pips.
- A guaranteed stop loss (GSLO) fixes the exit price for a premium, while a stop limit order fixes the price but may leave the trade open.
- A trailing stop loss moves only in the trade's favour, keeping a set distance behind price to protect open profit.
- A good stop loss sits where the trade idea is proven wrong, with a small buffer beyond the chart level.
- The 1 to 2% rule sets the money at risk, so a $10,000 account at 1% risk can lose $100 on one trade.
- Position size comes from the stop loss distance, and $100 of risk with a 40 pip stop loss on GBP/USD gives 0.25 lots.
What Is a Stop Loss?
A stop loss is an order that closes an open trade automatically when price reaches a level set in advance, to limit the loss on that trade. On a long position the stop loss sits below the entry price, and on a short position the stop loss sits above the entry price.
A trader places the stop loss with the broker, and the broker's system has it executed automatically without constant monitoring. A stop loss is a risk management tool that can protect traders from unexpected losses. Its job is to decide in advance where a trade is wrong and how much that trade can cost, and it does not pick entries. The trade still closes at a loss, and the exit price can be worse than the planned level.
A take profit is the matching order on the winning side, closing the trade automatically once price reaches a level in profit. Both orders act at the moment price reaches them, and that moment is where the details of a stop loss start to matter, but it is still better than having no exit plan.
How Does a Stop Loss Work?
When price reaches the stop price, a stop loss turns into a market order and closes the trade at the next available price. The stop price is the level the trader chooses for the stop loss. A market order lets traders buy or sell at the prevailing market price.
- You can place a stop loss when you open the trade, or add it later.
- Price trades at or through the stop price, and the stop loss triggers.
- The stop loss becomes a market order that closes the trade at the next available price.
A triggered stop loss always closes the trade, but the stop loss price is a trigger, not a guaranteed execution price. In a fast market, low liquidity, or after market gaps, the next available price can be worse than the stop price. A gap is a jump in price from one trade to the next, often when a market reopens after the weekend. The difference between the stop price and the actual exit price is called slippage.
A stop loss can be moved after it is set and keeps working while you are away from the screen. One GBP/USD trade shows the trigger with real numbers.
Stop Loss Example for Long and Short Trades
A stop loss example shows the maximum loss a trader accepts before entering the trade. The GBP/USD numbers in this example are illustrative and leave out the spread and other trading costs. A pip is the smallest standard price step in a currency pair, and on GBP/USD one pip is 0.0001.
| Trade | Entry | Stop loss | Exit | Result |
|---|---|---|---|---|
| Long position | Buy at 1.2650 | 1.2610 | 1.2610 | 40 pip loss |
| Short position | Sell at 1.2650 | 1.2690 | 1.2690 | 40 pip loss |
| Long position with a weekend gap | Buy at 1.2650 | 1.2610 | Near 1.2580 | About 70 pip loss |
On the long position, a trader buys GBP/USD at 1.2650 with a stop loss at 1.2610, which is 40 pips below the entry price. Once the stock price reaches the stop level, the stop loss triggers and the trade closes for a 40 pip loss.
On the short position, a trader sells GBP/USD at 1.2650 with a stop loss at 1.2690. The same logic applies if the stock reaches the stop on a short trade, and the stop loss closes the trade for a 40 pip loss. Both losses match the plan because price moved smoothly through the stop price.
A weekend gap changes the result. A long position is open on Friday with the stop loss at 1.2610, and GBP/USD closes the week at 1.2640. After weekend news, GBP/USD opens on Monday at 1.2580. The stop loss triggers at the open, but the first available price is 1.2580, so the trade closes near 1.2580 for a loss of about 70 pips instead of 40.
In short, the stop loss closed the trade as planned, but the gap set the exit price 30 pips past the stop price. An extra 30 pips can look like a reason to skip stop losses, yet traders keep using them for clear reasons.
Why Traders Use Stop Loss Orders
Traders use a stop loss to limit losses during market fluctuations and support disciplined exits before a trade gets out of hand. A stop loss limits the loss on each trade. A stop loss does not protect against every loss, and in volatile markets premature execution can sometimes limit profit potential.
- Capping the loss on one trade keeps a small loss from growing into one that damages the whole account.
- Leverage makes a stop loss more important, because leverage lets a trader open a position bigger than the deposit and magnifies losses as well as gains.
- Taking emotion out of the exit helps reduce emotional decision making by setting the exit before the trade goes wrong, not while hoping price comes back.
- Leaving the screen becomes possible, because the broker's system automates an order to sell once price reaches the stop, even while you sleep.
A stop loss also makes position sizing possible, because the distance from the entry price to the stop loss tells you how big a position fits the money you are willing to lose.
Not every stop loss behaves the same way when price reaches it, so the type of stop loss order changes how the trade ends.
Types of Stop Loss Orders
The main types of stop loss orders are the standard stop loss, the trailing stop loss, the guaranteed stop loss (GSLO) and the stop limit order. The four types differ in how they close the trade under different market conditions and whether the exit price is fixed, while broader stop-loss strategies are often grouped by technical chart structure, fixed percentages, and market volatility.
| Type | How it closes the trade | Exit price fixed? | Extra cost | Best for |
|---|---|---|---|---|
| Standard stop loss | Becomes a market order at the stop price | No, slippage and gaps can give a worse price | None to place it, normal trading costs apply | Most trades in liquid markets |
| Trailing stop loss | Follows price in the trade's favour by a set distance, then closes like a standard stop loss | No | Usually none, varies by broker | Protecting open profit in a trend |
| Guaranteed stop loss (GSLO) | The broker closes the trade at the exact stop price | Yes | A premium, often charged only if triggered (varies by broker) | Weekends and major news |
| Stop limit order | Becomes a limit order at the stop price | Yes, limit price or better, but it may not fill | None to place it | When price matters more than getting out |
The standard stop loss comes first, because the other three types build on how a standard stop loss works.
Standard Stop Loss
A standard stop loss is the default stop loss type, fixed at one stop price until the trader moves it. When price reaches the stop price, the standard stop loss closes the trade at the next available market price. A standard stop loss always closes the trade as long as there is a market to trade in, but the exit price is not fixed, and slippage in fast markets and around major news can make the execution price differ from the stop level. A trailing stop loss starts the same way as a standard stop loss, but the stop price moves with the trade.
Trailing Stop Loss
A trailing stop loss keeps a set distance behind price, in pips or as a percentage, and moves only in the trade's favour. A trailing stop loss never moves back. If price reverses by the set distance, the trailing stop loss closes the trade like a standard stop loss.
On the same GBP/USD buy at 1.2650, a 40 pip trailing stop loss starts at 1.2610. If GBP/USD rises to 1.2690, the trailing stop loss moves up to 1.2650, the entry price, so a fall back now closes the trade near the entry price instead of at a 40 pip loss.
A trailing stop loss protects open profit in a trend, but a tight trailing stop can be triggered by normal price fluctuations before the trend resumes. Neither the standard stop loss nor the trailing stop loss fixes the exit price, and that is the job of a GSLO.
Guaranteed Stop Loss
A GSLO closes the trade at the exact stop price even if price gaps take price past it, and the broker covers the difference. In return, the broker charges a premium, often only when the GSLO is triggered. Brokers usually require a GSLO to sit a minimum distance from the current market price, and offer GSLOs only on some markets. These terms vary by broker.
A GSLO helps most when you hold a trade over the weekend or through major news, because those are the times a gap is most likely. In the GBP/USD gap case, a GSLO at 1.2610 would have closed the trade at 1.2610 for a 40 pip loss plus the premium, instead of about 70 pips. A stop limit order also controls the exit price, but in a different way and with a different risk.
Stop Loss vs Stop Limit Order
A stop loss guarantees that the trade closes but not the exit price, while a stop limit order aims for the limit price or a better price but does not guarantee the trade will close. A stop limit order has two prices. The stop price triggers the order, and then the stop limit order becomes a limit order at a limit price, which only fills at the limit price or better. A limit order can also work as a sell limit order to sell positions at a chosen price.
In the GBP/USD gap case, a stop limit order with a stop price of 1.2610 and a limit price of 1.2600 triggers at the Monday open of 1.2580. GBP/USD is already past the 1.2600 limit price, so the stop limit order does not fill and the long position stays open, still losing. It may also fail to fill if there are not enough buyers at the limit price. A standard stop loss in the same gap closes the trade near 1.2580.
| Feature | Stop loss | Stop limit order |
|---|---|---|
| Trigger | Price reaches the stop price | Price reaches the stop price |
| After the trigger | Becomes a market order | Becomes a limit order |
| Exit price guaranteed | No | Yes, limit price or better |
| Trade closed guaranteed | Yes, when there is a market | No |
| Main risk | Slippage and gaps | Trade stays open if price jumps past the limit |
| Best used when | Getting out matters most | Price control matters more than getting out |
Choosing the order type is one decision. Choosing where to put the stop price is the next one.
How to Set a Stop Loss and Where to Place It
A good stop loss should fit the trader’s risk appetite and sit where the trade idea is proven wrong, far enough from the entry price to survive normal price swings and close enough that the loss stays within your risk limit.
- Find the price level that proves your trade idea wrong.
- Place the stop loss a little beyond that price, with a small buffer.
- Measure the distance in pips from the entry price to the stop loss.
- Check the money at risk against the 1 to 2% rule, and set the position size to match.
- Enter the stop loss with the order. In MT4 and MT5, the order window has a Stop Loss field.
Traders commonly find that point with chart structure, fixed percentages, fixed distance, market volatility, or in some strategies a time-based stop after a set period.
| Method | How the stop loss is set | Strength | Weakness |
|---|---|---|---|
| Chart level | Beyond a swing low, swing high, support or resistance | Tied to where the trade idea is wrong | Obvious levels can attract stop hunting |
| Percentage from entry | A set percentage away from the entry price | Simple and quick | Ignores the chart and volatility |
| Fixed distance | A set number of pips or points from entry | Easy to use in position sizing | Too tight in fast markets, too wide in quiet ones |
| Volatility (ATR) | A multiple of the Average True Range (ATR) | Adjusts to how much price is moving | Needs an indicator, can give wide stop losses |
The chart level method ties the stop loss most directly to the trade idea, so the chart level method comes first.
Chart Level Stop Loss
A chart level stop loss sits just beyond a level on the chart, below a recent swing low or support for a long position, and above a recent swing high or resistance for a short position. Support is a price area where falls have stalled before, and resistance is a price area where rises have stalled before. A swing low is the bottom of a dip before price turns up, and a swing high is the top of a rise before price turns down.
Price moving past that level suggests the reason for the trade no longer holds. Add a small buffer of a few pips beyond the level, so the stop loss avoids the exact price many traders watch.
Percentage Stop Loss
No single stop loss percentage suits every trade, and the right number depends on which of two percentages a trader means.
The first percentage is a distance from the entry point, for example a stop loss 2% below a buy price. A percentage from the entry price is simple but ignores the chart and how much the market usually moves.
The second percentage is the 1 to 2% rule, which limits the money at risk on one trade to 1 to 2% of the account and defines the only risk taken on that trade in account terms. The stop loss distance still comes from the chart or another placement method. On a $10,000 account, a 1% risk means $100 per trade, whatever the stop loss distance.
The 1 to 2% rule is a common guideline, not a guarantee, and a loss can still run past the planned amount through slippage or a gap.
ATR and Volatility Based Stop Loss
A volatility based stop loss is set at a multiple of the ATR, an indicator that measures the average price movement, or recent market fluctuations, over a chosen period. Because the ATR rises in fast markets and falls in quiet ones, traders use it to set stop losses that adapt to downside risk as volatility changes, sitting wider when price swings hard and tighter when price is calm. Whichever method sets the stop price, the next step is turning the stop loss distance into money.
How to Calculate Stop Loss and Risk Per Trade
Risk per trade is the maximum loss if the stop loss executes at the planned level, and risk per trade equals the pips to the stop loss times the pip value times the position size.
Money at risk = pips to stop loss × pip value × position size
Traders usually reverse the formula to determine the appropriate position size or use a position size calculator.
Position size = money at risk ÷ (pips to stop loss × pip value)
Using the illustrative GBP/USD example, before spread and costs.
- The account balance is $10,000, and 1% risk is $100.
- The stop loss is 40 pips from the entry price of 1.2650, at 1.2610.
- The pip value on GBP/USD is $10 per standard lot of 100,000 units.
- The position size is $100 ÷ (40 × $10), which is 0.25 lots.
The $10 pip value per standard lot applies to pairs quoted in US dollars, such as GBP/USD, and differs on other pairs. A 0.25 lot position stopped out at 1.2610 loses $100, but in fast conditions the trade may fill at a different specified price than the stop level.
Stop Loss Risks and Limitations
A stop loss limits a loss, but the disadvantages of using one include limits on execution and the fact that it cannot promise the exit price or prevent every loss. Four risks explain most of the difference between the planned loss and the real one.
- Slippage in fast markets fills a stop loss at a worse price than the stop price, because the market order takes the next available price while price moves quickly.
- A gap fills a stop loss at the first available price when the market opens beyond the stop price, which can matter most in sharp market declines, as in the GBP/USD case where a 40 pip plan became a loss of about 70 pips.
- Getting stopped out by normal price swings is one of the risks of using a stop loss in volatile markets, because price can reach the level and then turn back in the trade's favour, which is more likely with a tight stop loss.
- Stop hunting is the idea that price often pushes through obvious levels where many stop losses sit before moving back, which is why a small buffer beyond the level helps.
A GSLO removes gap risk for a premium, where a broker offers one. Some of these losses come from the market itself, and others come from how traders place and manage the stop loss.
Common Stop Loss Mistakes and How to Avoid Them
The most common stop loss mistakes are setting the stop loss too tight, moving it further away, placing it on an obvious level and trading without one, and they matter because the stop loss is a safety net, but poor placement can reduce its value.
- Setting the stop loss too tight gets a sound trade stopped out by normal moves in the stock price before the trade has room to work, so place the stop loss beyond the price that proves the trade idea wrong.
- Moving the stop loss further away when a trade goes wrong turns a planned loss into a bigger one and breaks the 1 to 2% rule, so only move a stop loss in the trade's favour.
- Placing the stop loss exactly on an obvious level, such as a round number or a clear swing low, leaves no buffer against a short spike through the level, so add a few pips beyond it.
- Trading without a stop loss leaves the loss with no limit, and with leverage one bad trade can wipe out a large part of the account, so set the stop loss when you open the trade; one reason to practise this on demo is learning stop placement before risking real capital.
Beginners also ask a few questions about stop losses again and again, from take profit orders to the 7% rule.
Stop Loss FAQs
Is a Stop Loss the Same as a Stop Order?
A stop loss is one use of a stop order, so the two terms overlap without being the same. A stop order is the order type that activates when price reaches a specific price set as the stop price. A stop loss is a stop order used to close a losing trade. Stop orders can also open new trades.
Can You Set a Stop Loss and a Take Profit on the Same Trade?
Yes, you can set a stop loss and a take profit on the same trade. The stop loss sits on the losing side of the entry price, the take profit sits on the winning side, and whichever price is reached first closes the trade. A take profit is the order itself, while the price you aim for is the profit target.
Can You Lose More Than Your Stop Loss?
Yes, you can lose more than your stop loss with a standard stop loss, through slippage in a fast market or a gap. In the GBP/USD example, a weekend gap turned a planned 40 pip loss into about 70 pips. A GSLO fixes the exit price for a premium, where a broker offers one.
What Happens to a Stop Loss When the Market Is Closed?
At most brokers, a stop loss stays in place while the market is closed and triggers at the first available price when the market reopens. If the market opens past the stop price after a gap, the trade closes at that opening price, which can mean a bigger loss than planned.
What Is the Golden Rule for a Stop Loss?
A commonly cited golden rule for a stop loss is to set the stop loss when you open the trade, risk no more than 1 to 2% of the account on that trade, and never move the stop loss further away. The golden rule is a guideline, not a guarantee.
What Is the 7% Stop Loss Rule?
The 7% stop loss rule is a guideline some stock investors follow in the stock market, which says to sell a stock if the stock falls about 7% below the buy price. The 7% stop loss rule comes from stock investing and is not a forex or CFD standard.
Are Stop Losses a Bad Idea?
The main risk with stop losses is getting stopped out too early, though they still have drawbacks. The usual complaints, getting stopped out by normal price swings, sudden price drops, short-term volatility, and slippage, mostly come from tight placement and fast markets. A stop loss will not make a strategy profitable, but a stop loss keeps one losing trade close to the planned loss while still helping protect traders.
