Money Flow Index (MFI)
The Money Flow Index (MFI) was developed by Gene Quong and Avrum Soudack. It uses both price and volume to measure buying and selling pressure.
Pivot = (High + Low + Close) / 3
Money Flow = Pivot * Volume
Money Ratio = Sum of Positive Money Flow / Sum of Negative Money Flow
MFI = 100 - (100/(1 + Money Ratio))