Money Flow Index (MFI): How to Use Money Flow Index in Trading Platforms

Money Flow Index

The financial markets are a dynamic ecosystem. We all know this. Still, one tool that has gained significant popularity is the Money Flow Index (MFI). In this article, we’ll hop into the world of the MFI, exploring its formula, estimates, signals, and limitations. Whether you’re new to trading or an experienced hand, understanding the Money Flow Index can be a game-changer in your trading strategy. Keep reading! 

What is the Money Flow Index (MFI)?

So, what is the money flow index in theory? The Money Flow Index (MFI) is an interesting tool used by traders to gauge the strength and momentum of trends. Here’s what you need to know:

  • It’s a momentum indicator measuring money flow in and out of a security over time.
  • Calculated using both price and volume, it’s a volume-weighted RSI.
  • MFI can signal overbought/oversold conditions, detect divergences, and predict reversals more promptly than RSI.
  • The oscillator ranges from 0 to 100. Namely, above 80 suggests overbought, and below 20 suggests oversold.
  • Typically, MFI uses 14 periods of price data for calculation.
  • To calculate MFI, positive money flows are divided by negative flows over the last 14 periods.
  • MFI confirms price trends, spots divergences, and indicates the strength/direction of price movements.

In short, traders use money flow index to spot buy/sell chances by analyzing money flow in securities. It combines price and volume data, offering signals for overbought/oversold, divergences, and reversals.

Money Flow Index Formula

We already learned that the MFI is a useful tool for analyzing trends in a security’s price. It is calculated using a step-by-step process:

  • Find the typical price of the given period.
  • Compare today’s typical price with the previous day’s to determine positive and negative money flows.
  • Divide the positive money flow by the negative money flow to get the raw money ratio.
  • Normalize the raw money ratio to a scale of 0 to 100.

Money Flow Index is based on the Relative Strength Index (RSI) but is more advanced as it considers various money flow evaluations. It highlights differences in strengths compared to RSI. Notably, MFI is effective for spotting divergences that indicate potential price trend changes. An MFI reading above 80 signifies overbought conditions, while below 20 suggests oversold conditions.

Sometimes, thresholds of 90 and 10 are also used.

How to Calculate the Money Flow Index

Calculating the MFI involves a systematic process that anyone can learn. Let’s take a hypothetical example. Suppose we have five days of trading data: high, low, and close prices, along with volume. 

By following the step-by-step calculation process, we can arrive at the MFI value for each day. This hands-on approach allows us to understand the inner process of the MFI. This helps us make wiser trading choices. 

Note: A MFI chart visually represents the flow of money into and out of a security over a specific timeframe. By plotting MFI values on a graph, we can identify trends, various conditions, and potential reversals. 

Positive Money Flow and Negative Money Flow

Positive money flow and negative money flow are essential components of the calculation. This is a fact! Positive money flow represents the amount of money entering the market during an upward trend. What’s more, negative money flow signifies the capital leaving during a downward trend. 

The balance between these two flows is a vital indicator of the market sentiment. This goes without saying. By interpreting this balance, traders can predict potential shifts in fads and position themselves accordingly.

Tip: MFI indicator settings refer to the parameters that traders can customize when using the Money Flow Index. They are abundant. 

Money Flow Index (MFI) Signals

The MFI offers a span of signals that traders eagerly await. These signals provide insights into potential buy and sell opportunities. A bullish Money flor index signal suggests that buying pressure is increasing. So this indicates a potential upward movement in the price. 

Contrarily, a bearish MFI signal indicates that selling pressure is mounting, hinting at a possible downward movement. By recognizing these signals, you can time your trades more effectively.

Bullish Money Flow Index

A bullish MFI signal arises when the index dips below 20 and then crosses back above it. This signifies that a period of selling pressure has potentially reached its end, and an uptrend may follow. 

Yet, it’s important to corroborate this signal with other indicators and market trends. Do that before making a trading decision.

Bearish Money Flow Index

Now, what is there to know about the bearish money flow index? A bearish MFI signal occurs when the index rises above 80 and subsequently falls below it. 

This suggests that a period of buying pressure may be subsiding, potentially leading to a downtrend. Just like with bullish signals, traders should use bearish signals as a starting point for further analysis.

The Difference Between the Money Flow Index and the Relative Strength Index (RSI)

While the MFI and the Relative Strength Index (RSI) both fall under the umbrella of momentum indicators, they have distinct characteristics. 

The MFI brings out both price and volume. Notably, it offers a more extensive picture of market sentiment. On the other hand, the RSI primarily considers price movements. Understanding these differences can help traders choose the most suitable tool for their analysis.

Tip: Failure swings are important patterns identified by technical analysts when using indicators like the MFI. A failure swing occurs when the Money Flow Index forms a higher high or lower low compared to its previous peak or decline. Yet, the price of the security does not follow suit.

Limitations of the Money Flow Index

As with any trading tool, the MFI has its limitations. It’s essential to recognize that the MFI might generate false signals, particularly in choppy or sideways markets. Besides, sudden spikes in volume can skew the index, leading to false interpretations. Beware of this! 

To avoid these limitations, traders should use the MFI in conjunction with other indicators and tools.

How to Use a Money Flow Index on a Trading Platform

So, let’s focus on using the MFI now. Using the Money Flow Index (MFI) on your platform involves a few easy steps that can greatly enrich your analytical abilities. Let’s take a look:

  • Select the MFI. On many trading platforms, the MFI is available as a built-in indicator. You can easily locate it among the list of indicators offered by your platform. This initial step sets the foundation for using the power of Money Flow Index.
  • Adjust the Parameters. Once you’ve chosen the MFI, it’s time to fit it into your specific trading approach. The default configuration often employs a 14-period setting. Yet, this is not set in stone; you have the freedom to fine-tune this setting according to your trading preferences. This adaptability ensures that the MFI aligns with your strategies and timeframes.
  • Visualize the Index. With your parameters adjusted, the Money Flow Index will be visible on your price chart. This graphical representation offers an intuitive way to observe the movement of the MFI alongside price fluctuations. This visual synergy simplifies the process of identifying potential signals, such as overbought or oversold conditions, as well as broader trends. The MFI’s clear presence on your chart empowers you to make informed trading decisions with greater confidence, as you can readily spot the interactions between price action and the MFI’s insights.

By following these steps, you will unlock the potential of the Money Flow Index. 

Money Flow Index Strategy

Crafting a strategy around the MFI involves a deep understanding of its signals and nuances. One popular approach is to combine MFI signals with other technical indicators, such as moving averages. 

This multidimensional strategy can enhance the accuracy of your trading decisions. Remember, no strategy guarantees success, but a well-informed approach can improve your odds.

MFI Indicator in MetaTrader 5

For traders using the MetaTrader 5 platform, integrating the MFI is straightforward. Navigate to the “Insert” tab, select “Indicators,” then “Oscillators,” and finally “Money Flow Index.” 

You can customize the MFI’s parameters and appearance to suit your preferences. This user-friendly integration empowers MetaTrader 5 users to harness the power of the Money Flow Index smoothly.


The MFI is far more than a simple technical indicator. This one is a gateway to understanding market sentiment and fads. By exploring its formula, calculations, and signals, traders can elevate their decision-making process. 

While the MFI isn’t without limitations, its potential benefits are substantial when used judiciously. As you explore various strategies and platforms, keep the insights from this article in mind. The MFI might just be the missing piece that takes your trading to the next level.


Is the Money Flow Index a Good Indicator?

Money Flow Index can be useful, revealing buying/selling pressure.

What Is the Money Flow Index in MetaTrader?

Money Flow Index in MetaTrader gauges price/volume, and helps predict reversals.

How Do You Use Money Flow Index?

To use the Money Flow Index, track positive/negative money flow.

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