The WPR JMA AA Forex Indicator is a popular and free MetaTrader 4 indicator that helps traders identify potential trading opportunities in the Forex market. This indicator works by combining the Williams Percent Range (WPR) and JMA (Jurik Moving Average) indicators to produce a unique signal that can be used to identify potential trading opportunities. The indicator is also easy to set up and customize, making it a popular choice for traders who want to get the most out of their trading strategies.