The ADX is widely used and is considered by many traders to be very reliable as a gauge of trend strength. Traders can easily alter the time period to meet their
ADX below 20: Non-trending or consolidating. ADX crosses above 20: A new trend may emerge. ADX crosses 25: Confirmation of the trend. ADX above 40: Strong trend. ADX crosses 50: Extremely strong trend. ADX crosses 70: A rare occasion.