The ADX indicator measures the strength of a trend and can be useful to determine if a trend is strong or weak. High readings indicate a strong trend and low readings indicate a weak trend.

When this indicator is showing a low reading then a trading range is likely to develop. Avoid stocks with low readings! You want to be in stocks that have high readings.

This indicator stands for Average Directional Index. On some charting packages there are two other lines on the chart, +DI and –DI (the DI part stands for Directional Indicator). Ignore these lines. Trying to trade according to these two lines is a great way to lose money! The only thing that we are concerned with is the ADX itself.