The Relative Strength Index (RSI) is a momentum indicator. It is used to assess whether an asset is overbought or oversold. RSI analyzes recent price changes and provides data in the form of an oscillator ranging from 0 to 100.
If the relative strength index increases while the price rising, it may indicate a strong upward trend. If the technical indicator is decreasing, but the price is increasing, the asset is likely to fall soon. Traditionally, it is believed that if the RSI is more than 70, then the asset is overbought, less than 30 - oversold.