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ATR

Average size of the true range, a volatility measure. Sets stop distance to market noise.

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About

Average True Range (ATR) is the average of true range over a lookback. True range is the greater of the bar's high-low span and the gaps from the prior close. It measures volatility, not direction.

A rising ATR means bars are getting larger. A falling ATR means they are compressing. ATR does not say whether price will continue or reverse.

Add ATR to a mix for stop distance, volatility filters, or to require expansion before a breakout entry. Pair it with a directional signal so ATR is the size of the move, not the reason to trade.