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What ATR is, and why a fixed-% stop loss gets hit so often

Quiet and wild markets need different distances. ATR measures how much price really moves, so profit targets and stop losses make more sense.

2 October 2026 · 1 min read

A 1% stop loss every time sounds disciplined. But on a day when price normally swings 2% an hour, that stop gets hit before the price goes anywhere — the problem isn’t discipline, it’s a distance that doesn’t fit the market.

Illustration: profit target and stop loss distances by ATR in a calm market versus a volatile one
Illustration, not real price data

What ATR is

ATR (Average True Range) is the average amount the price moves per candle, in dollars. Higher ATR means a more volatile market; lower ATR a quieter one. It changes with the market all the time.

Using ATR to set distances

Instead of a fixed %, set distances as multiples of ATR, e.g. a 2 ATR target and a 1 ATR stop. When the market swings hard, the distance widens by itself; when it’s quiet, it narrows by itself.

  • Distances that fit the market cut the chance of being stopped out by normal swings
  • The reward-to-risk ratio stays the same, e.g. 2:1, whatever the market is doing
  • Signal results can be compared fairly across periods

In BitX Space

The system measures every signal in ATR (“went at most +1.8 ATR”), and the backtest page lets you set targets and stops as multiples of ATR or as % of price — compare both on real data yourself.

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