MFI is an oscillator used in technical analysis of price charts of an asset . This using data on price and volume, shopping spots, too (Overbaught) and points of sale too (Oversell) identifies . This tool can also be used to detect divergences . The oscillator-oscillator oscillator range is between 0 and 100 . Unlike oscillators ordinary like the RSI, which is just data, prices, uses etc. this oscillator in addition to price data, the data volume will also interest him. that's why some analysts MFI's the same as the RSI know that from the data volume also uses.