Stop-loss and take-profit placement

A stop-loss is not just a number that limits your loss. It marks the price at which your trade idea is clearly wrong. This lesson covers how to place stops sensibly, how to think about targets, and how the two combine into a risk-reward ratio.

Two jobs of a stop-loss

A stop-loss is an order that closes your trade if price reaches a level you choose. It does two jobs:

1. It caps the loss on the trade, which lets you size the position correctly.
2. It defines invalidation: the point where the reason you entered no longer holds.

The second job is the one most often skipped. A stop placed at "20 pips because that feels about right" may sit in the middle of normal price noise, so you get stopped out even when your idea was sound.

Structure-based stops

Prices often react around recent swing highs and lows, the turning points you can see on a chart. A common approach is to place the stop just beyond the level that would prove your idea wrong.

Worked example

You buy EUR/USD at an example price of 1.1000 because price has bounced from a recent swing low at 1.0980.

• If price falls below 1.0980, the bounce has failed, so the stop belongs below that level.
• You add a 5-pip buffer for spread and noise: stop at 1.0975.
• Stop distance: 1.1000 minus 1.0975 = 0.0025, or 25 pips.

That 25-pip distance then feeds straight into the position-sizing formula from the previous lesson. If structure demands a wider stop, the position gets smaller; the money at risk does not change.

Volatility-based stops and ATR

Markets have quiet and busy periods. A stop that suits a calm week can be far too tight in a volatile one. Average True Range (ATR) is an indicator that measures the average size of recent price bars, including any gaps between them. A 14-period setting is common.

Some traders set stops as a multiple of ATR so the stop adapts to current conditions. For example, if the 1-hour ATR on EUR/USD is 12 pips, a stop of 1.5 × ATR would be 18 pips. If volatility doubles and ATR rises to 24 pips, the same rule gives a 36-pip stop, and your position size shrinks to keep the risk constant.

Structure and ATR work well together: use structure to choose where the stop belongs, and ATR to check that it is not unrealistically tight.

Take-profit and risk-reward

A take-profit order closes the trade at a target price. The risk-reward ratio compares the potential gain with the potential loss.

Continuing the example: entry 1.1000, stop 1.0975 (25 pips of risk), target 1.1050 (50 pips of reward). The ratio is 50 ÷ 25 = 2, often written as 1:2 or "2R", meaning the target is twice the risk.

Targets are often placed just before an obvious level where price has previously turned, such as a prior swing high, rather than at an arbitrary multiple.

The break-even win rate

The ratio tells you how often you need to be right just to break even, before costs. If R is the reward divided by the risk:

• Break-even win rate = 1 ÷ (1 + R)

Check for 1:2: win 1 trade in 3. You gain 2R once and lose 1R twice, for a net of zero.

A higher ratio is not automatically better. Distant targets are reached less often, so your win rate usually falls as R rises. What matters is the combination of the two, and spreads and commission raise the real break-even point slightly above the figures in the table.

Practical cautions

• Do not widen a stop once you are in the trade. Moving it further away increases your risk beyond what you planned.
• Stops can slip. In fast markets, around major news or when the market reopens after a weekend, your order may fill at a worse price than the stop level.
• Spread matters for short-term trades. A long position is usually closed at the bid price, so a widening spread can trigger a stop even if the chart's mid price never touched it.

Key takeaways

• A stop-loss should sit where your trade idea is clearly invalidated, not at an arbitrary distance.
• Structure tells you where the stop belongs; ATR helps you check it suits current volatility.
• Risk-reward compares potential gain with potential loss, for example 50 pips of reward to 25 of risk is 1:2.
• Break-even win rate = 1 ÷ (1 + R): 50% at 1:1, about 33.3% at 1:2, 25% at 1:3, before costs.
• Stops can fill at worse prices during gaps and fast markets, so actual losses can exceed the plan.