The Vinini WPR Oscillator Indicator is a useful Forex indicator that is popular amongst traders. It is based on the Williams Percent Range (WPR) indicator which is calculated by subtracting the lowest low from the highest high over a specific period. The Vinini WPR Oscillator Indicator is designed to help traders identify potential entry and exit points in the market. It works by plotting a line that oscillates between 0 and -100. The Vinini WPR Oscillator Indicator is a great tool for traders who are looking to identify potential entry and exit points in the Forex market.