Keep in mind the indicator measures only strength but not directional of the trend. Trend and ADX may move in the same and opposite direction with the trend. In a strong downtrend, ADX will rise as it happens in strong uptrend. ADX will drop when trend weakens. We may say that ADX shows convergence in the beginning of strong uptrend and will show divergence when uptrend weakens. Vice versa, ADX will show divergence with strong downtrend and convergence at the end of the downtrend.
The levels of ADX shows quality of the trends. This allows us to choose the strongest trends to enter and ride it until it weakens.
To use ADX we will setup our chart like this:
To filter the trend strength, we look to ADX levels. Bes entrance will be above 25. If ADX climbs above 25 in uptrend we look for buy but option when ADX climbs 25 in downtrend we look for sell option.
ADX level expressions are:
We will setup our chart to trade with adx.