ADX staying below 20 forex buy and sell signals indicator of interest — there is no trend or the trend is weak. ADX moving above 20 level — trend is strong.
ADX passing 40 level — trend is extreme. ADX value rising — trend is going stronger, falling — trend is weakening. DI stays on top of -DI — uptrend is in place. DI — downtrend is in place. Two DI cross — trend is changing. ADX advices on the strength of the dominant forces that move market prices here and now.