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What is DMI? How to Use DMI Indicator Effectively

When investors want to determine whether a market is experiencing strong or weak volatility, they often rely on indicators in technical analysis. One of the typical indicators that helps traders identify trend volatility is the DMI. So what is DMI? What is the nature of the DMI indicator? How do you use this tool in trading? Let’s explore the details with Forex in today’s article.

Let’s get started!!!

1. OVERVIEW: WHAT IS THE DMI INDICATOR?

DMI stands for Directional Movement Indicator – an indicator developed by J. Welles Wilder in 1978. In fact, DMI is a combination of three indicators: ADX, DI+, and DI- combined into one. This indicator was created to determine whether a market trend exists (i.e., whether the market is experiencing strong or weak volatility). In addition, the DI+ and DI- indicators are used to complement ADX in identifying the direction of the trend.

Specifically:

  • ADX (Average Directional Index) helps investors determine the strength of a trend. ADX ranges from 0 to 100, where higher values indicate a strong upward trend and lower values indicate a strong downward trend.

  • DI+ and DI- are two indicators used to determine the trend direction.

By combining these three indicators, you can clearly identify both the direction and the strength of the current trend. Therefore, DMI is used for two main purposes: determining the strength of a trend and identifying trading signals.

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1.1. What is the DMI Calculation Formula?

The DMI formula is calculated by comparing today’s high and low prices to those of the previous day. From there, the indicator checks whether the price range is higher or lower and produces an average result over a defined time period. However, investors don’t need to worry about this formula, as the DMI system already includes built-in visual analysis tools. Therefore, the DMI formula is no longer crucial for traders.

1.2. Structure of the DMI Indicator

As mentioned in the previous section, DMI is a set of 3 indicators, including: Average Directional Index (ADX), Positive Directional Index (DI+) and Negative Directional Index (DI-).

Looking at the chart above, you can see:

  • ADX line: Represented by the pink line on the chart

  • DI+ line: Represented by the green line

  • DI- line: Represented by the orange line

By default on TradingView, DMI is calculated using the 14,14 parameters.

In fact, the default parameters have been thoroughly researched and are used by most traders. If you wish to change the input parameters, Finance Solutes recommends taking the time to test your strategies before making any adjustments to avoid potential risks in trading.

2. THE NATURE OF THE DMI INDICATORS

Let’s take a closer look at the nature of DMI through the indicators that make it up.

2.1. ADX Line

ADX helps investors determine whether the market is experiencing strong or weak volatility. This indicator has three key thresholds: 20, 50, and 70, where:

  • ADX < 20: The market is trendless

  • 20 < ADX < 50: The market is starting a new trend

  • 50 < ADX < 70: The market has a relatively strong trend

  • ADX > 70: The market is in a very strong trend

In reality, it’s rare for the ADX to reach the 70 level unless there’s a strong market dump or pump.

In addition, ADX is considered a lagging indicator, meaning that investors cannot rely on its crossovers with the 20, 50, or 70 levels for timely trading signals, since price action typically moves before the indicator does. Therefore, the ADX line can only be used to determine whether a trend is strong or weak, but it should not be used as a standalone trading signal.

2.2. DI+ Line

The DI+ line represents the bullish (upward) trend. If the bulls are dominant, the DI+ line will move upward. For this indicator, the 20 level is considered the most important, because an uptrend is only confirmed when DI+ is above 20 and continues to rise.

A higher DI+ value indicates a stronger uptrend. However, it’s important to note that when the DI+ line moves downward, it does not necessarily mean that the price will decline accordingly.

2.3. DI- Line

The DI- line represents a bearish (downward) trend. If the bears are dominant, the DI- line will move upward. Similar to DI+, the 20 level is very important for DI-, because a downtrend is only confirmed when DI- is above 20 and continues to rise.

Additionally, the higher the DI- value, the stronger the downtrend. However, it’s also important to note that even if the DI- line moves downward, it does not necessarily mean that the price will go back up.

3. HOW TO SET UP THE DMI INDICATOR ON TRADINGVIEW AND BINANCE

To install the DMI indicator on any trading platform, the first thing you need to do is register an account, then log in and go to the Chart section. In this part, TradaFX will guide you through setting up the DMI indicator on the TradingView platform and the Binance cryptocurrency exchange.

3.1. Setting Up the DMI Indicator on TradingView

After successfully registering an account on TradingView, go to the homepage interface and click on “Chart” to open the analysis chart.

Once you’re on the chart, follow these steps in order:

  • Click on the “Fx” icon in the top toolbar

  • In the search box, type the name of the indicator: “DMI”

  • When the search results appear, click on the first result

The DMI indicator interface, once successfully installed, will appear as shown in the image below: 

3.2. Setting Up the DMI Indicator on Binance

Binance is known as the world’s largest centralized cryptocurrency exchange by trading volume. The account registration process and identity verification (KYC) on this exchange can be quite complex, so you should refer to the detailed guide on how to register and complete KYC [HERE].

After logging in and accessing Binance’s chart section, you need to follow these steps:

  • Click on the icon near the time frame box, and then select “Technical Indicators”.

  • By default, Binance usually uses two indicators: MA and VOL. If you don’t need them, you can uncheck to remove them from the chart.

  • Go to the Secondary Indicators section and click the DMI box to set up this indicator on your chart.

4. HOW TO USE THE DMI INDICATOR IN TRADING

In this section, Finance Solutes will guide you on how to use the DMI indicator in real trading.

4.1. Cross Signal of the DI+ and DI- Lines

Buy Signal: When the DI+ line crosses above the DI- line, and at the same time, the ADX rises above the 20 threshold.

Sell Signal: When the DI+ line crosses below the DI- line, and at the same time, the ADX rises above the 20 threshold.

4.2. Combining DMI with Other Technical Indicators

After determining whether the market is trending or moving sideways, investors can combine DMI with other technical indicators:

  • When the market is trending (i.e., ADX > 20): Investors can combine DMI with moving averages (MA), MACD, and others.

  • When the market is not clearly trending (i.e., ADX < 20): You can combine DMI with indicators such as RSI, MFI, Stochastic, etc.

5. IMPORTANT NOTES WHEN USING THE DMI INDICATOR IN TRADING

To effectively use the DMI indicator in trading, investors should keep the following in mind:

  • When trying to identify the start of a new trend in the market, observe whether the ADX line moves up from below the 20 threshold. If ADX is below 20 and then rises after a long period of unclear market direction, the reliability increases.

  • ADX is also applied to detect trend reversal signals. When ADX is above both DI+ and DI- lines and then turns downwards, this signals that the current trend may reverse.

  • When the market is sideways (i.e., ADX < 20) and the DI+ and DI- lines keep crossing each other, you should carefully consider before entering a trade.

6. SUMMARY

So, through today’s article, Finance Solutes has introduced you to all the knowledge about what the DMI indicator is, the nature of the DMI indicator, as well as trading methods using this effective tool. We hope that with the information we have just shared, you now clearly understand the essence of the DMI indicator and know how to apply it to your trading strategies.

If you have any questions about this indicator, please comment below, and we will respond to you right away.

Wishing you success!!!

🌍 Finance Solutes
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