Indicator guide · Volume and volatility

Money Flow Index (MFI): what it shows, settings and how to read it.

An RSI that also counts volume.

What MFI shows

An RSI that also counts volume.

How it is calculated

An RSI that also counts volume: the typical price of each candle is multiplied by its volume, and the money flowing in on up-candles is compared with the money flowing out on down-candles.

Usual settings

Length 14 with lines at 80 and 20.

How traders read it

Above 80 overbought, below 20 oversold, with divergences read like RSI.

Where it fails

Thin volume makes it noisy.

What to combine it with

RSI (when both agree the signal is stronger) and support and resistance.

Try MFI on a live chart

Sign in, open Genni Charts, press the "ƒx Indicators" button above the chart and choose MFI. Click its name on the chart to change the settings. It is free for every member.

More in "Volume and volatility": Volume · OBV · ATR · All 25 indicators

Questions

Frequently asked questions

What is the MFI indicator?
An RSI that also counts volume.
What are the best settings for MFI?
The usual settings are: Length 14 with lines at 80 and 20. No setting is best in every market, so test a change on past data before relying on it.
Is MFI reliable on its own?
No single indicator is. Thin volume makes it noisy. Most traders use it together with: RSI (when both agree the signal is stronger) and support and resistance.
How do I add MFI to a chart for free?
Sign in, open Genni Charts, press the "ƒx Indicators" button above the chart and choose MFI. Click its name on the chart to change the settings. It is free for every member.

This page is education, not investment advice. Trading involves substantial risk of loss. Read next: Trading indicators · Trading strategies · Candlestick patterns