Trading strategies · Intermediate

ATR-Based Stop-Loss Placement

A stop inside one third of a typical candle will be hit by ordinary movement, on trades whose underlying read was perfectly sound.

Last reviewed by the MarketPro research desk · Editorial policy

In short

ATR-based stops set the invalidation distance as a multiple of Average True Range, so the stop adapts to current volatility instead of staying at a fixed number. With a 60-pip ATR, a 1.5x stop is 90 pips and a 20-pip fixed stop sits inside a third of one typical candle. The position size then has to change with the stop distance to keep the money at risk constant.

What to remember

  • A fixed stop is too tight in volatile conditions and too wide in quiet ones, and the same number causes both problems in the same month.
  • True range includes gaps by comparing each high and low against the previous close, which is why it differs from simple high minus low.
  • An adaptive stop without adaptive sizing defeats the point, since the money at risk then moves with volatility.
  • A 2x ATR trail on a 60-pip ATR returns 120 pips from the peak by design, which is 30% of a 400-pip move.

What a 20-pip stop costs on a 60-pip ATR

Average True Range measures how far an instrument typically moves in a period. Using it to set stops means the stop distance changes with conditions rather than staying at a number you picked once.

The case for that is best made with the failure it prevents. GBP/USD has a 14-period ATR of 60 pips on the 4-hour chart, meaning a typical 4-hour candle covers about 60 pips. A trader using a fixed 20-pip stop is placing the invalidation a third of one candle's normal range away from entry. It will be hit by ordinary movement, repeatedly, on trades whose underlying read was fine. The trader concludes their analysis is poor. The analysis was not the problem, the stop was inside the noise.

Run the same fixed 20-pip stop when ATR drops to 18 pips during a quiet week and the opposite problem appears. Now the stop is more than a full candle's range away, risking more than the conditions require, for no additional protection.

True range, and why it is not just high minus low

True range for a candle is the largest of three distances, each measured without regard to sign: the current high to the current low, the current high to the previous close, and the current low to the previous close. The last two exist to capture gaps, so a market that opens well away from the previous close records the full extent of that jump rather than only the range it traded afterwards.

ATR is then a moving average of that figure, usually over 14 periods. Two properties follow and both matter:

  • It has no direction. A large ATR says the instrument is moving, not which way.
  • It is an average of the past. ATR rises after volatility has already increased, so on the candle before a shock it is still reporting the calm that came first.

Choosing the multiple, and what each one buys

StopOn a 60-pip ATRBehaviour
1x ATR60 pipsInside one typical candle, frequent stop-outs
1.5x ATR90 pipsCommon middle ground
2x ATR120 pipsSurvives most normal swings, larger per-trade loss
3x ATR180 pipsPosition trading territory, needs a much smaller size

There is no correct multiple, only a trade-off. A wider stop is hit less often and costs more when it is hit. A tighter stop is cheaper per occurrence and triggers more often, including on trades that would have worked. What ATR provides is not an escape from that trade-off, it is a way of expressing the choice in units that adapt to the instrument, so the same 1.5x rule produces 90 pips on volatile GBP/USD and 25 pips on a quiet pair without any manual adjustment.

11 more sections in MarketPro

Finish this lesson in MarketPro

The rest of ATR-Based Stop-Loss Placement, a quiz that checks it landed, and your place kept in the curriculum.

  • 11 more sections of this lesson
  • All 320 lessons, with no cap and no paywall
  • Free on any account, including a free one
In your browserContinue on webor continue on web

Same account as the app · No install · Free to start

Or scan with your phone camera to get the MarketPro app.

Not investment advice. Past performance is not indicative of future results.

Run the numbers while this is fresh

Work it through on your own position size. Nothing leaves your browser and there is no sign-up: Position size calculator, Profit & loss calculator, Compounding calculator.

Written and reviewed by the MarketPro research desk

MarketPro is a trading-signal and trading-education app operated by Harajuku Holdings LTD (Cyprus). Our signal desk publishes and tracks every trade idea in-app, and every page here is checked against the app's live behaviour before publishing. Last reviewed . How we produce signals and content · About MarketPro

FAQ

ATR-Based Stop-Loss Placement: questions

What ATR multiplier should you use for a stop loss?
Between 1.5 and 2 times ATR is the common range, with wider multiples used for longer holding periods. There is no correct figure, only a trade-off: a wider stop is hit less often and costs more when it is, while a tighter one is cheaper per occurrence and ends more trades that would have worked. Whichever you choose, keep it consistent long enough to judge it over a meaningful sample.
Is an ATR stop better than a fixed stop?
It is better matched to conditions, which usually means fewer stop-outs caused purely by normal movement and less capital risked during quiet periods. It is not better than a well-chosen structural stop, though. If a swing low or a tested level sits closer than the ATR distance, that level is both tighter and more meaningful, and ATR is best treated as the fallback when no clear structure exists.
Does ATR predict volatility?
No, it measures what has already happened over the last 14 periods and averages it. That makes it a reasonable description of current conditions and a poor warning system, because it reports the calm that preceded a shock rather than warning of it, and only rises once volatility has already increased. Around scheduled economic releases in particular, the recent average says nothing useful about the next few minutes.
Trade · Learn · Earn

The whole academy is free in MarketPro

All 320 lessons, 12 guided paths, quizzes and a daily streak. Free on every account, in the app or your browser, with vetted free signals alongside it.

Same account as the app · No install · Free to start

Not investment advice. Past performance is not indicative of future results.