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Wilder's Volaility System - indicator
Wilder's Volatility System
Wilder’s Volatility System, developed by and named after Welles Wilder, is a volatility index made up of the ongoing calculated average, the True Range. The True Range is always positive and is defined as the highest difference in value among today’s daily high minus today’s daily low; today’s daily high minus yesterday’s closing price; and today’s low minus yesterday’s closing price. The consideration of the True Range means that days with a low trading range (little difference between daily high and low), but still showing a clear price difference to the previous day, do not enter into the calculation with an erroneously low volatility.
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