How do you use ADX to determine the direction of the trend

The Average Directional Index (ADX) is used to measure the strength or weakness of a trend, not the actual direction. Directional movement is defined by +DI and -DI. In general, the bulls have the edge when +DI is greater than -DI, while the bears have the edge when -DI is greater. 

Just like we mentioned above, since ADX does not tell the direction of the trend, it is combined with +D directional movement to show an uptrend and –D directional indicator representing a downtrend.

After the cross of these indicators (-D and +D), we are able to tell the direction of the trend on the market chart.

Let’s take a look at the AUDJPY 4-Hour chart below and see how this indicator works.


From the above chart, ADX is represented by the Blue line, +Dl by a Green line and -DI a Red line.

As the ADX indicator read values above 20 (pink color), it indicated a strong uptrend and as it read values below 20 (light blue), it indicates a ranging market or a very weak trend. Therefore looking at this indicator, you will be able to tell whether the market is trending or ranging.

The +D line indicate an uptrend and when above -Dline, it signals a strong uptrend.

The -D line indicates a downtrend and when the -D line (red) is above the +D line(green), it signals a strong downtrend.

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