An indicator that measures average price volatility over a set period — used to size stops and position sizes.
ATR is the average size of price moves over the last N periods (default is 14). It measures volatility — not direction. When ATR is high, the market is moving aggressively. When ATR is low, the market is quiet. ATR doesn't tell you UP or DOWN, just how big the typical move is.
The most powerful use of ATR is for setting stop losses. Instead of picking a stop level off vibes, use a multiple of ATR — e.g., 1.5x ATR below entry for a long. This adapts your stop to current volatility. In a quiet market, you get a tighter stop. In a volatile market, you get more room. Either way, the stop is mathematically based on what the market is actually doing.
ATR also helps with position sizing. If you risk $100 per trade and your stop is 1.5x ATR (which is, say, 30 pips today), you can calculate your lot size precisely.
GBP/JPY's daily ATR averaged 130 pips through 2024. Traders using a fixed 25-pip stop on the 1-hour got hunted on every normal pullback. Switching to a 0.5x daily ATR stop (65 pips) cut stop-outs in half.
Frequently asked about atr (average true range)
What is an atr (average true range) in trading?+
An indicator that measures average price volatility over a set period — used to size stops and position sizes.
When will I see atr (average true range) used in real trading?+
Below the price chart on most platforms. Pros use ATR for stops and position sizing on every single trade.
What is the most common mistake traders make with atr (average true range)?+
Using a fixed-pip stop on every pair regardless of volatility. A 30-pip stop on EUR/USD might be reasonable, but the same 30-pip stop on GBP/JPY is way too tight. ATR fixes this.
What do experienced traders know about atr (average true range) that beginners don't?+
Use ATR from the higher timeframe to size your stops on the lower timeframe. If you trade the 1-hour, set stops based on the 4-hour ATR. This protects you from intra-period noise.
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