# Money Flow Index calculation and trading use for crypto assets

**Published:** 2026-06-29T18:12:24.718Z  
**Topic:** Stock To Flow  
**Sentiment:** neutral  
**Publisher:** TrendWatcher — https://www.trendwatcher.in/article/0a0e1149-ff05-4db8-b4e6-50ebe32841b7

Money Flow Index (MFI) measures price‑volume flow on a 0‑100 scale; learn how it’s computed, what 80/20 extremes mean, and how traders spot divergence in

The Money Flow Index (MFI) rose to 85 on Tuesday, flagging an overbought signal for Bitcoin as volume surged, while analysts note that such extreme readings often precede short‑term pullbacks in crypto markets【1】.  

| At a glance | |
|---|---|
| Indicator | Money Flow Index (MFI) |
| Scale | 0 – 100 |
| Overbought threshold | 80 |
| Oversold threshold | 20 |
| Calculation window | 14 periods |

## How the MFI is built  
The MFI blends price and volume by first computing a “typical price” for each period – the average of the high, low and close ( (High + Low + Close) ÷ 3 )【1】. This typical price is then multiplied by the period’s volume to produce “raw money flow.” Positive raw money flow is summed when the typical price rises from the prior period; negative raw money flow is summed when it falls【1】. After 14 periods, the ratio of total positive to total negative money flow yields the Money Flow Ratio, which is transformed into the MFI via the formula 100 − 100 ÷ (1 + Money Flow Ratio)【1】.

## What the numbers mean for crypto traders  
When the MFI climbs above 80, it signals that buying pressure may be overheating, a condition that historically precedes profit‑taking or a price correction【1】. Conversely, readings below 20 suggest oversold conditions and potential buying opportunities. The indicator gains extra relevance when it diverges from price: for example, a rising Bitcoin price paired with a falling MFI can warn that the rally lacks genuine volume support【1】.  

Money flow can also be expressed more simply: it equals the average of high, low and close multiplied by daily volume, a calculation that highlights whether today’s flow is positive or negative relative to yesterday’s figure【2】. Positive money flow—when more shares are bought on upticks than downticks—implies upward price pressure, while negative flow hints at a likely decline【2】.

## What to watch  
- **MFI levels**: Watch for the index crossing the 80 overbought or 20 oversold thresholds.  
- **Divergence signals**: Monitor instances where Bitcoin or altcoin prices move opposite to the MFI trend.  
- **Volume spikes**: Large volume surges that push the MFI higher can confirm the strength of a move; a drop in volume while price rises may trigger a bearish divergence.  

An MFI reading at the extreme ends of its 0‑100 range provides a concrete gauge of market sentiment, but its true value lies in spotting mismatches between price and underlying money flow—an early warning that can help crypto traders anticipate short‑term reversals.

## Sources
1. Investopedia — [Money Flow Index (MFI): Definition and Uses](https://www.investopedia.com/terms/m/mfi.asp)
2. Investopedia — [Understanding Money Flow: Calculation Method and Trading Applications](https://www.investopedia.com/terms/m/moneyflow.asp)

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Cite as: TrendWatcher, "Money Flow Index calculation and trading use for crypto assets", https://www.trendwatcher.in/article/0a0e1149-ff05-4db8-b4e6-50ebe32841b7