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Finance Dictionary and Glossary of Investment Terms
Average True Range - ATR
A measure of volatility introduced by Welles Wilder in his book: New Concepts in Technical Trading Systems.The True Range indicator is the greatest of the following: -current high less the current low. -the absolute value of the current high less the previous close. -the absolute value of the current low less the previous close. The Average True Range is a moving average (generally 14-days) of the True Ranges.