The RSX Indicator is a popular and free Forex indicator for the MetaTrader 4 (MT4) trading platform. The indicator works by analyzing the price action of a currency pair and then plotting a line on the chart to indicate the trend. The indicator also plots arrows on the chart to indicate potential trading opportunities. It is also a great tool for setting stop-loss levels. The indicator is easy to use and provides traders with a comprehensive view of the market. With the RSX Indicator, traders can make informed decisions and maximize their profits.