A trailing stop is a moving exit level that follows price as a trade moves in your favor. The three methods below differ mainly in what they measure: a fixed percentage of price, recent volatility (ATR), or distance from the highest high (Chandelier).
None of them predicts direction; instead, each is a rule for deciding when a position has moved far enough against you that the trade is over. While the choice itself matters less than consistency, you must also size the position so the stop sits where your thesis actually breaks.
Percentage trailing stops
The simplest version: pick a number, say 10%, and trail the stop that far below the highest price since entry. A stock bought at 50 with a 10% trail stops out at 45 until it rises; at 60 the stop moves to 54.
How it behaves. The distance is constant in percentage terms, so the dollar risk grows as the position gains. On a 50 stock, 10% is 5 points. On a 100 stock, it is 10 points. That is fine if your position size is fixed in dollars, less fine if you hold a fixed share count.
Where it works. Large, liquid names with steady trends and no wild intraday swings. It is easy to explain, easy to automate, and hard to second-guess in the moment.
Where it fails. Volatility is not constant. A 10% trail that gives a quiet utility stock room to breathe will knock you out of a semiconductor name on an ordinary pullback. The reverse is also true: in a low-volatility stretch, a fixed percentage can be too wide to protect gains.
A practical fix is to set the percentage from the stock’s own recent range rather than a round number. If a name routinely swings 4% a day, a 5% trail is not a stop, it is a coin flip.
ATR trailing stops
Average True Range measures how much a market actually moves, including gaps. A 14-period ATR is the common default. An ATR trailing stop sits a multiple of ATR below the highest close or high since entry, often around 2x to 3x.
Worked example. Suppose a stock trades at 80 and its 14-day ATR is 2.50. With a 3x multiplier, the trail is 7.50 points. The initial stop sits at 72.50. If the stock reaches 90 and ATR is still 2.50, the stop moves to 82.50. If volatility expands to an ATR of 4, the stop widens to 78, which is the mechanism doing its job: it gives the position room when the market gets noisier.
The trade-off. ATR adapts to conditions, which is why many systematic traders prefer it. The cost is that the stop can move backward when volatility rises, even as price advances. That feels wrong to discretionary traders who expect a trailing stop to only ratchet upward. You can cap it by only raising the stop, never lowering it, but then you lose some of the adaptation.
Multiplier choice matters more than the ATR period. A 2x trail on a trending name will exit early and often. A 4x trail protects less and gives back more of the gain. There is no correct number, only a trade-off between whipsaw and giveback. Test the multiplier on the instrument and timeframe you actually trade.
Chandelier exits
The Chandelier exit, popularized by Chuck LeBeau, hangs a stop from the highest high of the lookback period—usually 22 days—minus a multiple of ATR, typically 3x. Although it is a long-only trailing stop in its standard form, a short version hangs from the lowest low plus the same ATR multiple.
Worked example. A stock’s 22-day high is 120 and ATR is 3. A 3x Chandelier stop sits at 111. As long as the 22-day high stays at 120, the stop stays at 111 even if price drifts to 114. When the stock prints a new high at 130, the stop rises to 121, assuming ATR is unchanged.
What makes it different. The lookback window means the stop reacts to the highest high over roughly a month, not to the highest close since your entry. Two traders with different entry prices can hold the same stock with the same Chandelier stop. That is useful for rule-based systems and awkward for people who think of the stop as tied to their own cost basis.
Where it struggles. In choppy markets, the 22-day high can stay fixed while price chops below it, so the stop does not tighten. A sharp reversal from a high gives back the full ATR multiple before the exit triggers. On fast-moving small caps, a 3x ATR distance can be a large share of the position’s value.
Comparing the three side by side
| Method | What sets the distance | Adapts to volatility | Moves only upward | Best suited to |
|---|---|---|---|---|
| Percentage | Fixed % of price | No | Yes, if you enforce it | Steady, liquid trends; simple rules |
| ATR | Multiple of ATR from peak | Yes | Not automatically | Volatile names; systematic trading |
| Chandelier | Highest high minus ATR multiple | Yes | Yes, when new highs print | Trend following with a fixed lookback |
Choosing between them
The honest answer is that the method should match the holding period and the instrument’s behavior, not your preference for tidy rules.
If you trade breakouts in volatile stocks, a fixed percentage will either stop you out constantly or leave you exposed. ATR-based distances scale with the noise you are trying to survive. If you hold large, slow-moving dividend payers, the difference between a 10% trail and a 3x ATR trail may be a couple of percentage points, and the simpler rule wins on execution discipline.
A useful test: take your last ten trades and mark where each of the three stops would have exited. You are not looking for the method with the highest total profit. You are looking for the one whose exit points you could actually have followed without overriding them.
Notes for traders (weeks to six months)
Short-horizon traders face more stop decisions per year, so consistency and cost matter. Frequent exits mean commissions, spreads and potential tax implications in taxable US accounts. A trailing stop that fires on noise is expensive even when each individual exit looks small.
For this group, ATR trails are usually the more defensible default because position risk stays roughly stable across names with different volatility. Set the multiplier from the timeframe you trade, not from a book. If you trade daily charts, calculate ATR on daily bars. Intraday stops built from daily ATR will be too wide to protect a swing trade.
Watch the interaction with position sizing. A wider stop is only acceptable if you cut size to keep the dollar risk constant. Widening the stop while keeping the same share count is how a risk plan quietly becomes a bigger bet.
Notes for investors (six months and longer)
Long holding periods change the calculus. A trailing stop that exits a core holding after a normal correction can trigger a taxable gain and force a re-entry decision, which is often worse than the drawdown it avoided. Many long-term investors are better served by a review trigger, such as a reassessment when a position falls a set amount, rather than an automatic exit order sitting in the market.
If you do use a mechanical trail on a long-term position, a wider ATR-based trail on weekly bars may be more consistent with the holding period than a tight daily stop. The purpose is to exit a broken trend, not to dodge a bad month.
Also consider that a stop order and a stop-limit order behave differently in a gap. A stop becomes a market order and can fill well below the trigger. For illiquid holdings, that slippage can exceed the benefit of the stop itself.
Common mistakes with all three methods
Placing the stop at a round number because it feels right is a common error. The market does not know your chart, so set it from the method, then size the position around it.
Moving the stop down to avoid being stopped out turns a risk rule into a hope. If you find yourself doing this, the original stop was either too tight or the position was too large.
Ignoring gaps is another pitfall, because trailing stops work on continuous price action, so overnight news can jump the stop entirely and no trailing method protects against that. Position size is the only real defense.
Treating a backtest as a forecast. A multiplier that worked on one stock in one trend tells you little about the next trade. Judge the method on whether it keeps losses small and lets winners run over many trades, not on a single outcome.
Conclusion: pick one rule and size around it
Percentage stops are simple and transparent but blind to volatility. ATR trails adapt to market noise and suit traders who can accept a stop that occasionally widens. Chandelier exits anchor to a fixed lookback and work well for trend followers who want a rule that ignores entry price.
No method removes the core problem: you are choosing in advance how much giveback you will accept in exchange for staying in a trend. Decide that number from the instrument’s behavior and your holding period, size the position so the stop is affordable, and then let the rule do its job.
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Frequently Asked Questions
What is the difference between an ATR trailing stop and a Chandelier exit?
An ATR trailing stop is usually measured from the highest close or high since your entry, so it depends on where you bought. A Chandelier exit is measured from the highest high over a fixed lookback, commonly 22 days, so two traders with different entries can share the same stop level.
Is a percentage trailing stop better than an ATR stop?
Neither is universally better. A percentage stop is simpler and easier to follow, but it ignores volatility, so it can be too tight in choppy markets and too loose in quiet ones. ATR stops adapt to the instrument's recent range at the cost of more calculation and a stop that can widen.
What ATR multiplier should I use for a trailing stop?
There is no fixed correct value. Multipliers around 2x to 3x are common, with wider values giving the trade more room and protecting less profit. The right choice depends on the instrument's volatility and your holding period, and it should be tested on the timeframe you actually trade.
Do trailing stops protect against overnight gaps?
No. A trailing stop is a trigger level, and if price gaps through it overnight, the fill can be well below the stop. A stop order becomes a market order at the trigger, so slippage is possible. Position sizing is the main defense against gap risk.
Should long-term investors use trailing stops?
It depends on the account and the goal. Automatic exits can trigger taxable gains and force re-entry decisions after normal corrections. Many long-term holders use review triggers or wider stops on weekly charts instead of tight daily trailing stops, but this is a personal decision, not a universal rule.
AI Notice: This article was created wholly or predominantly with the assistance of artificial intelligence and was published without human editorial review.
This article is for general information only and does not constitute investment advice. Always do your own research before making trading decisions.