what is the money flow index mfi 
the money flow index mfi is a technical oscillator that uses price and volume data for identifying overbought or oversold signals in an asset it can also be used to spot divergences which warn of a trend change in price the oscillator moves between 0 and 100 unlike conventional oscillators such as the relative strength index rsi the money flow index incorporates both price and volume data as opposed to just price for this reason some analysts call mfi the volume weighted rsi image by sabrina jiang investopedia 2021the formulas for the money flow index are money flow index 100 1001 money flow ratiowhere money flow ratio 14 period positive money flow14 period negative money flowraw money flow typical price volumetypical price high low close3 begin aligned text money flow index 100 frac 100 1 text money flow ratio textbf where text money flow ratio frac text 14 period positive money flow text 14 period negative money flow text raw money flow text typical price volume text typical price frac text high low close 3 end aligned money flow index 100 1 money flow ratio100 where money flow ratio 14 period negative money flow14 period positive money flow raw money flow typical price volumetypical price 3high low close 