ADX (Average Directional Index) – Overview and How To Use It In Trading (2024)

Last Updated on May 24, 2022 by Anjali Chourasiya

Trend chasing is one of the most popular and profitable technical trading methods. Detecting a strong directional move is the cornerstone of a trader’s toolkit. Generally, trend trading attempts to utilise the momentum of an asset in a particular direction to capitalise on gains. This strategy can reduce a trader’s risk and increase profit potential. There are various technical indicators that help traders assess the momentum. One such indicator used to understand the strength of a trend is the Average Directional Index (ADX).

Table of Contents

What is the average directional index?

Average Directional Index forms a part of the Directional Movement System. It is an indicator developed by Welles Wilder to fathom the strength of a price movement, either in a positive or negative direction. The ADX primarily determines the core strength of a trend.

Welles originally developed the indicator for the commodity industry but due to its high relevance and competence, it became a popular indicator for technical trading of stocks as well.


The ADX is derived from two accompanying indicators: the Positive Directional Index (DI+) and the Negative Directional Index (DI-). Therefore, an ADX indicator has three lines on the chart: DI+, DI-, and the ADX line.

Calculating the ADX

ADX is primarily used to quantify the strength of a trend. ADX is calculated based on the moving average of a price range spanning over a given period. The default ADX is calculated for 14-time units, although other periods can be used. ADX can be used on trading vehicles such as stocks, mutual funds, exchange-traded funds, and futures.

As mentioned before, the ADX indicator comprises three components, namely:

  • The positive Directional Index DI+
  • The negative Directional Index DI-
  • ADX line

The ADX value spans from 0 to 100, and it signifies the trend’s strength irrespective of its direction. It helps traders to spot the strongest trends and, in turn, capture the most profitable trades.

Usually, readings that are close to 0 or greater than 60 are not common occurrences. It is important to note that the ADX value just signifies the trend’s strength and not its direction. Another important aspect of ADX indicator is DM which stands for directional movement. They are the most important component of the ADX indicator.

Have a look at the below table to understand ADX indicator in detail.

IndicatorBelow 20Above 20Above 40Below 40
ADXRange for tradingNew trending emergingExtremely strong trendTrend may be weakening
+DIA weak bullish momentumNew/Bull trending emergingExtremely strong bull trendTrend may be weakening
-DIA weak bearish momentumNew/Bear trending emergingExtremely strong bear trendTrend may be weakening

+DI = bulls may be activated generating a buy signal
-DI = bears may be activated generating a sell signal

For calculating ADX, true range (TR), +DM, -DM,+DI,-DI needs to be calculated.
True range = High price – low price (of the day)
DM is calculated using current high/low and previous high/low prices.

For example assume on 1 January, for stock ABC,

Day high = Rs. 100
Day low = Rs. 80
Previous high = Rs. 90
Previous low = Rs. 83
Day high – previous high = Rs. 100 – Rs. 90 = Rs. 10
Previous low – current low = Rs. 83 – Rs. 80 = Rs. 3

Since Rs. 10 > Rs. 3, DM is positive and the vice versa would result in -DM

Similarly, for ADX 14, the sum of 14-day TR is obtained.

Once DM is calculated, DI is derived from it.
Now DX is calculated as = DI 14 difference/ DI 14 sum x 100

ADX = Simple average of DX (14 day)

With charting facilities now available to investors online, just with a click, the ADX indicator can be presented on your screen. These calculations are usually only drawn on excel sheets to learn and understand ADX in depth

Trading based on ADX

If the stock price increases, DI+ crosses over DI- and ADX is greater than 20, then a buy signal is generated.

If the stock price decreases, DI- crosses over DI+ and ADX is greater than 20, then a sell signal is generated.

ADX is less than 20 indicates stock consolidation and sideways movement of stock price, i.e., it is typically range bound fluctuating between support and resistance.

Limitations of ADX

Since it’s based on moving averages, the indicator reacts slowly to any price changes. It is a lagging indicator.

ADX may not be a good indicator for less volatile stocks, and for the more volatile ones, there may be too many false signals generated.

ADX is not sufficient. It needs to be used in conjunction with other indicators for the purpose of trading.

A divergence in ADX is not indicative of a change in trend. As long as the value is above 20, the trend is unimpaired.


Conclusion

The ADX indicator not only detects trending conditions but also helps traders find the most profitable trends to trade. ADX also signals changes in trend momentum, allowing risk management to be addressed. The best returns are obtained by trading the strongest trends and avoiding range situations.

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With a wealth of experience as a content writer at Tickertape, Aayushi is passionate about simplifying complex investment modules for the platform's audience. Her writing offers a fresh perspective on the financial world, keeping readers captivated with the latest industry developments. Aayushi's ability to break down financial jargon into easily digestible content sets her apart as a writer who truly understands the needs of her readers.

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ADX (Average Directional Index) – Overview and How To Use It In Trading (2024)

FAQs

ADX (Average Directional Index) – Overview and How To Use It In Trading? ›

The Average Directional Index, or ADX for short, is another example of an oscillator. ADX fluctuates from 0 to 100, with readings below 20 indicating a weak trend and readings above 50 signaling a strong trend. When the ADX is low, it highlights periods when the price is usually going sideways or trading in a range.

How to use ADX indicator for trading? ›

The ADX identifies a strong trend when the ADX is over 25 and a weak trend when the ADX is below 20. Crossovers of the -DI and +DI lines can be used to generate trade signals. For example, if the +DI line crosses above the -DI line and the ADX is above 20, or ideally above 25, then that is a potential signal to buy.

What is the best ADX setting for day trading? ›

The ADX indicator fluctuates between 0 and 100, with readings indicating different levels of trend strength:
  • Readings below 20 indicate a weak trend.
  • Readings above 50 signal a strong trend.
  • Values below 25 often suggest non-trending conditions.
  • Readings above 25 confirm trend strength.
Apr 25, 2024

How to use directional movement index? ›

Trading Using the Directional Movement Index (DMI)

If +DI line is higher up than -DI line, the market is believed to be trending upwards, and a long trade can be taken. Similarly, if -DI line is higher up than +DI line, a short trade is taken, as the market is believed to be trending downwards.

What are the advantages of ADX indicator? ›

ADX helps traders to determine when a breakout is strong enough to trend. Breakouts are moments in the price chart when there is a disagreement between the buyers and the seller, resulting in a trend reversal. However, breakouts often fail to progress and end up being a trap.

What is the ADX 2 trading strategy? ›

In the 2-period ADX Trend Trading Strategy, we are using a 2-period ADX to catch low risk entries in a trending market. The concept underlying the 2-period ADX is to find the perfect pause in the market. By using such a short look-back period for the ADX indicator, it becomes extremely sensitive.

What is the best timeframe for ADX? ›

The traditional setting for the ADX indicator is 14 time periods, but analysts have commonly used the ADX with settings as low as 7 or as high as 30. Lower settings will make the average directional index respond more quickly to price movement but tend to generate more false signals.

What is the secret of ADX? ›

This indicator calculates the moving average of the expanding price range over a certain period, usually 14 days. ADX has a value that fluctuates from 0 to 100, with limits generally between 20 and 50. The ADX value below 20 indicates a relatively weak trend, while values ?? above 50 indicate a very strong trend.

What is the best ADX setting for a 15-minute chart? ›

Switch your charts to a 15 minute time frame and add the Parabolic SAR, ADX and RSI to your chart. Next, set the indicators to the following parameters – click on each link for instructions on how to do this: RSI: 28. ADX: 10 (ignore the D+ and D- lines completely for this strategy)

How do you calculate average directional index in ADX? ›

The ADX is usually accompanied by two other indicators – the positive directional indicator (+DI) and the negative directional indicator (-DI). ADX = 100 × ( +DI minus -DI) / (+DI plus -DI) / average true range (ATR).

How do you use RSI and ADX? ›

Because the ADX measures the intensity of the trend the RSI can help with entries and exits by giving a time based component to the trend. In this case traders should wait for confirmation of a downtrend by an RSI reading of less than 30, or confirmation of an uptrend by an RSI reading above 70 before placing an order.

What are the three lines in an ADX indicator? ›

Wilder's DMI (ADX) consists of three indicators that measure a trend's strength and direction. Three lines compose the Direction Movement Index (DMI): ADX (black line), DI+ (green line), and DI- (red line). The Average Directional Index (ADX) line shows the strength of the trend.

What are the disadvantages of ADX indicator? ›

A few limitations of using the ADX indicator are mentioned hereunder. This indicator is a lagging indicator and is used to identify trend changes. But being in the nature of a lagging indicator, it is generally slow to respond to dynamic market changes and therefore may not reflect the accurate market conditions.

What are the benefits of ADX? ›

What Are the Benefits of Using the ADX? The ADX is a technical indicator that helps traders identify trends in the market. Traders can also use this indicator to determine whether prices are moving up and down within a specific range.

Is ADX a leading indicator? ›

The Average Directional Movement Index (ADX) — an indicator that measures trend strength — can help. The ADX is unique because it can work as a “leading indicator” that reveals the strength of a market's trend before a breakout move occurs.

How to use an accumulation distribution indicator? ›

Start by calculating the multiplier. Note the most recent period's close, high, and low to calculate. Use the multiplier and the current period's volume to calculate the money flow volume. Add the money flow volume to the last A/D value.

Is ADX bullish or bearish? ›

Unlike Stochastic, ADX does NOT determine whether the trend is bullish or bearish. Rather, it merely measures the strength of the current trend. Because of that, ADX is typically used to identify whether the market is ranging or starting a new trend. ADX is considered a “non-directional” indicator.

What are the best ADX settings for crypto? ›

Using ADX in Crypto Trading

One of the primary uses of ADX is to identify the strength of a trend. The ADX value typically ranges from 0 to 100. A high ADX value, say above 70, indicates a strong trend, whether bullish or bearish. Conversely, a low ADX value, below 20, signifies a weak or ranging market.

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