|Description||Developed by J.Welles Wilder in 1978, the RSI is an oscillator which is used to track the momentum of the stock price. Unlike other relative strength measures, the RSI compares the price of the stock relative to the actual stock, not against other stocks or indices. The basic premise of the RSI is that an advancing stock will trend close the high of the day, while a declining stock will trend toward the low.|
Common intreprations of the RSI use values below 30 as "buy" signals and values above "70" as sell, or overbought signals.
The smoothed RSI is a variation where a smoothing or slowing factor is applied to the RSI removing some of the "jaggedness" of the original signal.