GlossaryIntermediate
Money Flow Index (MFI)
An RSI-style 0-100 oscillator that incorporates both price and volume, sometimes described as a volume-weighted version of RSI.
The Money Flow Index (MFI) applies an RSI-style calculation to "money flow" — typical price multiplied by volume — rather than to price alone, producing a 0-to-100 oscillator sometimes described informally as a volume-weighted RSI.
Because it incorporates volume directly, MFI can diverge from RSI in ways that are specifically informative about whether price movement is backed by meaningful trading activity. See Kaavon's dedicated MFI article for the full calculation.
Examples
- MFI readings above 80 are commonly discussed as overbought and below 20 as oversold, similar in spirit to RSI's thresholds.
- MFI and RSI can diverge from each other specifically because MFI incorporates volume and RSI doesn't, which can be informative on its own.