rsi relative strength index (RSI) is a momentum indicator developed by noted technical analyst Welles Wilder. compares the magnitude of recent gains and losses over a specified time period to measure speed and change of price movements of a security. algorithm computes rsi < 30, for a list of symbols. calculates sortion ratio for an expexted return of 0.05. returns a list of symbols with rsi < 30 and a positive sortino ratio. provides with other statistical figures Note: Only for educational purpose. no guaranteed returns.