What is the concept of raw money flow in the MFI indicator for crypto?

Raw money flow, a key component of the MFI indicator, combines price and volume to gauge capital movement in crypto markets, helping identify potential buy or sell signals.

Aug 05, 2025 at 11:56 pm

Understanding the MFI Indicator in Cryptocurrency Analysis

The Money Flow Index (MFI) is a technical oscillator widely used in cryptocurrency trading to measure the strength and direction of money flowing in and out of an asset. Unlike traditional volume-based indicators, the MFI incorporates both price and volume data, making it a valuable tool for gauging market sentiment. The MFI typically ranges from 0 to 100, with readings above 80 considered overbought and below 20 oversold. However, the foundation of this indicator lies in a lesser-known but crucial component: raw money flow. This metric serves as the preliminary calculation before normalization into the final MFI value.

Defining Raw Money Flow

Raw money flow is the initial calculation used in the MFI formula and represents the total dollar value of trading activity for a given period. It is derived by multiplying the typical price of a crypto asset by its trading volume over a specific timeframe—commonly 14 periods. The typical price is calculated as the average of the high, low, and close prices:
(High + Low + Close) / 3.

For example, if Bitcoin has a high of $45,000, a low of $43,500, and a close of $44,200 on a given day, the typical price would be:
(45,000 + 43,500 + 44,200) / 3 = $44,233.33.

If the volume traded that day was 10,000 BTC, the raw money flow would be:
44,233.33 × 10,000 = $442,333,300.

This figure reflects the total monetary value exchanged during that period, serving as a proxy for investor participation and capital movement.

How Raw Money Flow Differs from Volume

While trading volume measures the number of units traded, raw money flow adjusts this by price, offering a more nuanced view of market activity. A high volume day with minimal price movement may not indicate strong conviction, but a high raw money flow suggests significant capital is entering or exiting. This distinction is vital in crypto markets, where volatility and pump-and-dump schemes are common.

For instance, a sudden spike in Dogecoin volume might seem significant, but if the price remains flat, the raw money flow will be relatively low, indicating weak buying pressure. Conversely, a moderate volume surge accompanied by a sharp price increase results in high raw money flow, signaling strong demand.

Role of Raw Money Flow in MFI Calculation

The raw money flow is not used in isolation—it is the building block for the full MFI computation. The process involves several steps:

• Calculate the typical price for each period.
• Multiply the typical price by volume to get the raw money flow for that period.
• Compare the current period’s typical price to the previous one to determine if it was a positive money flow (price increased) or negative money flow (price decreased).
• Sum all positive raw money flows over the lookback period (e.g., 14 days) to get total positive money flow.
• Sum all negative raw money flows over the same period to get total negative money flow.
• Compute the money ratio as: Total Positive Money Flow / Total Negative Money Flow.
• Finally, calculate MFI: 100 – (100 / (1 + Money Ratio)).

This process shows that raw money flow is essential for identifying the direction and magnitude of capital movement before normalization.

Practical Example of Raw Money Flow in Crypto Trading

Suppose you are analyzing Ethereum over a 3-day window with the following data:

Day 1:

• High: $3,200 | Low: $3,100 | Close: $3,150 | Volume: 50,000 ETH
• Typical Price: (3,200 + 3,100 + 3,150)/3 = $3,150
• Raw Money Flow: 3,150 × 50,000 = $157,500,000

Day 2:

• High: $3,300 | Low: $3,150 | Close: $3,250 | Volume: 60,000 ETH
• Typical Price: (3,300 + 3,150 + 3,250)/3 = $3,233.33
• Raw Money Flow: 3,233.33 × 60,000 = $194,000,000
• Price increased → Positive Money Flow

Day 3:

• High: $3,280 | Low: $3,200 | Close: $3,220 | Volume: 55,000 ETH
• Typical Price: (3,280 + 3,200 + 3,220)/3 = $3,233.33
• Raw Money Flow: 3,233.33 × 55,000 = $177,833,150
• Price decreased → Negative Money Flow

Over these three days:

• Total Positive Money Flow = $194,000,000
• Total Negative Money Flow = $157,500,000 + $177,833,150 = $335,333,150
• Money Ratio = 194,000,000 / 335,333,150 ≈ 0.578
• MFI = 100 – (100 / (1 + 0.578)) ≈ 36.6

This demonstrates how raw money flow values feed directly into the MFI, influencing whether the asset is viewed as oversold or overbought.

Common Misconceptions About Raw Money Flow

Some traders assume that raw money flow alone can signal buy or sell opportunities. This is incorrect. Raw money flow is directional but not normalized. A high value does not inherently mean bullish momentum—it must be contextualized within positive and negative flows. Another misconception is that raw money flow is the same as on-chain transaction volume. In reality, it is derived from exchange trading data, not blockchain transfers. Lastly, some believe MFI only applies to high-cap cryptos, but it can be effectively used on altcoins, provided volume data is reliable.

Frequently Asked Questions

Q: Can raw money flow be negative?

No, raw money flow itself is always a positive value because it is the product of price and volume, both of which are non-negative. However, it is categorized as part of positive or negative money flow based on whether the typical price rose or fell compared to the prior period.

Q: Is raw money flow affected by price gaps in crypto markets?

Yes. Cryptocurrencies often exhibit price gaps due to 24/7 trading or news events. These gaps influence the high and low prices, which in turn affect the typical price and, consequently, the raw money flow. A large gap up on high volume will significantly increase raw money flow.

Q: How does exchange data quality impact raw money flow accuracy?

Poor or manipulated volume data—common on some smaller exchanges—can distort raw money flow. For reliable analysis, traders should use MFI on assets listed on reputable exchanges with transparent, verifiable volume metrics.

Q: Does raw money flow consider bid-ask spread or slippage?

No. Raw money flow is calculated using the typical price, which relies on high, low, and close prices from candlestick data. It does not account for transaction costs, slippage, or order book depth. It reflects executed trades, not theoretical market conditions.