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   Average True Range (ATR)     
AVERAGE TRUE RANGE

Overview

The Average True Range ("ATR") is a measure of volatility. It was introduced by Welles Wilder in his book, New Concepts in Technical Trading Systems, and has since been used as a component of many indicators and trading systems.


Interpretation

Wilder has found that high ATR values often occur at market bottoms following a "panic" sell-off. Low Average True Range values are often found during extended sideways periods, such as those found at tops and after consolidation periods.

The Average True Range can be interpreted using the same techniques that are used with the other volatility indicators. Refer to the discussion on Standard Deviation for additional information on volatility interpretation.


Example

The following chart shows McDonald's and its Average True Range.

This is a good example of high volatility as prices bottom (points "A" and "A'") and low volatility as prices consolidate prior to a breakout (points "B" and "B'").


Calculation

The True Range indicator is the greatest of the following:

  • The distance from today's high to today's low.

  • The distance from yesterday's close to today's high.

  • The distance from yesterday's close to today's low.

The Average True Range is a moving average (typically 14-days) of the True Ranges.

 


ATR Stock Screener Action
 ATR(14) Trending Up Last 3 Days   Customize Screen   Backtest Screen   Trade Alert  
 ATR(14) Trending Up Last 7 Days   Customize Screen   Backtest Screen   Trade Alert  
 ATR(14) Trending Up Last 13 Days   Customize Screen   Backtest Screen   Trade Alert  
 ATR(14) Trending Up Last 26 Days   Customize Screen   Backtest Screen   Trade Alert  
 ATR(14) Trending Down Last 3 Days   Customize Screen   Backtest Screen   Trade Alert  
 ATR(14) Trending Down Last 7 Days   Customize Screen   Backtest Screen   Trade Alert  
 ATR(14) Trending Down Last 13 Days   Customize Screen   Backtest Screen   Trade Alert  
 ATR(14) Trending Down Last 26 Days   Customize Screen   Backtest Screen   Trade Alert  

 






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