Random article: Momentum Trading System
Momentum indicator measures speed of price's decline and growth. If indicator starts growing, it says that tendency accumulates its speed. If momentum curve flattens out, it says that the growth fixed by previous Close prices is similar to the growth noted a certain number of periods before. If curve moves to zero, the growth continues, but its speed falls down and loses pace. Upon crossing zero point, the curve tells about short-term dropdown of price; if decline of the indicator continues, market will descend.