The Currency Strength Index shows how major currencies perform against each other in real-time. You can see at a forex rates calculation which currency is on the rise and which one is declining, thus giving you valuable information about buying and selling pressure.
ADX staying below 20 level — there is no trend or the trend is weak. ADX moving above 20 buy forex sell signal trading — trend is strong. ADX passing 40 level — trend is extreme. ADX value rising — trend is going stronger, falling — trend is weakening.