Average True Range (ATR) measures the average price range a market covers over a given number of periods — typically 14 bars. It's not a directional indicator. It tells you nothing about where price will go. What it does tell you is how much price typically moves in a given session, which makes it the most practical tool for placing stops that account for normal market volatility.

The Problem with Fixed-Pip or Fixed-Percentage Stops

A 20-pip stop on EUR/USD makes sense in a quiet session with a daily range of 40 pips. The same 20-pip stop is almost guaranteed to be hit in a volatile session where the pair is moving 80–100 pips intraday — not because your trade thesis was wrong, but because your stop didn't account for normal conditions.

The same problem applies to percentage stops on stocks: a 5% stop on a stock with a 2% average daily range is reasonable. On a stock with an 8% daily ATR, a 5% stop will be triggered by normal noise before the trade develops.

How ATR Stops Work

The standard ATR stop method: place your stop at entry − (ATR multiplier × 14-period ATR).

Common multipliers:

  • 1.5× ATR: Tighter stop, more trades will be stopped out, better R:R if you can tolerate the higher loss rate
  • 2× ATR: The most widely used. Accounts for normal daily noise while keeping stops from being excessively wide
  • 3× ATR: Wide stop for swing trades held over multiple sessions. Fewer stop-outs but lower R:R per trade

Example: EUR/USD 14-period ATR = 80 pips. Entry at 1.0850 on a long trade. 2× ATR stop = 160 pips below entry → stop at 1.0690. Use the ATR Calculator to compute the current ATR for any instrument before placing the trade.

Combining ATR Stops with Chart Levels

ATR-based stops work best when combined with chart structure. The approach: first identify the technical level where the trade is invalidated (a support level for a long), then check whether your ATR-based stop sits at or below that level.

If the technical stop is at 1.0700 but the 2× ATR stop is at 1.0690, the levels are consistent — the ATR stop naturally covers the technical level. If the technical stop is at 1.0800 but the 2× ATR stop is at 1.0690, you have a choice: widen to the ATR stop to avoid noise, or tighten to the technical level knowing you accept more risk of premature stop-outs.

ATR for Trailing Stops

ATR is particularly useful for trailing stops. As a trade moves in your favor, you can trail the stop by 2× ATR below the most recent close. This allows the trade to breathe with current market volatility rather than being trailed by a fixed dollar amount that doesn't change as conditions change.

When volatility expands (ATR increases), the trailing stop widens to account for larger swings. When volatility contracts, the stop tightens, locking in more profit. This is the most mechanically sound approach to letting winners run.