0 (0) History J. Welles Wilder Jr. developed the Average True Range (ATR) technical indicator in the late 1970s. Wilder also introduced other widely used technical indicators, including the Relative Strength Index (RSI) and the Average Directional Index (ADI), commonly known as ADX. The Average True Range (ATR), another creation of Wilder, serves as a … Continue reading Average True Range: Understanding and Utilizing Volatility