Average Directional Index (ADX) About: The Average Directional Index (ADX), Minus Directional Indicator (-DI) and Directional Indicator (+DI) represent a group of directional movement indicators that form a trading system developed by Welles Wilder. The Average Directional Index (ADX) measures trend strength without regard to trend direction. The other two indicators, Plus Directional Indicator (+DI) … Continue reading Other indicators