Relative Strength Index (RSI)
A momentum oscillator that gauges the speed and variance of price moves is the Relative Strength Index (RSI), created by J. Welles Wilder.
The RSI fluctuates between zero and one hundred. The RSI is typically regarded as overbought when it rises above 70 and oversold when it falls below 30. Searching for divergences and failure swings can produce signals. Additionally, the broad trend can be determined using RSI.