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Average True Range Percent

ATRP expresses Average True Range as a percentage of price instead of an absolute value. Raw ATR is denominated in price, so it can't be used to compare volatility across instruments trading at different price levels — a $10 stock and a $400 stock will have very different ATR values even if they move by the same relative amount. Dividing ATR by close (×100) normalizes it into a percentage, making volatility comparable across any symbol, timeframe, or asset class.

How It's Calculated
True range is smoothed with a selectable moving average rather than a fixed method, so you can match the indicator's responsiveness to your own style.

Settings

ATR Lookback Period — number of bars used in the smoothing calculation (default 14).
ATR Smoothing — RMA, SMA, EMA, or WMA (default RMA, the classic Wilder smoothing used by standard ATR).
ATR Timeframe — calculate ATR on the chart's own timeframe, or pin it to a fixed timeframe (ticks, seconds, minutes, hours, days, weeks, or months) regardless of what chart resolution you're viewing. Useful for gauging a higher-timeframe's volatility while trading a lower one.
Wait for Timeframe Closes — only relevant when ATR Timeframe differs from the chart. Off: the value updates live with the still-forming higher-timeframe bar (can repaint on historical reloads). On: the value only updates once the selected timeframe's bar has actually closed (no repainting, one-bar lag).

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Davis_Goff

Software engineer and part time trader.
davisgoff.com

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オープンソーススクリプト

Davis_Goff

Software engineer and part time trader.
davisgoff.com