Strengths of Momentum Investing

It provides the opportunity for capital appreciation at relatively low risk, as usually the trend continues for some time, and there are enough signals of trend reversal during which the investor can take out his investment.
There is relative abundance of market information about an ongoing trend and the expected level after which it may reverse. So, the momentum investor does not need to go for his own research about the timing of investment.
Even if some investor is late in joining the trend, he can wind up his position at little or no loss at earliest signal of a reversal.
Unlike the contrarian investing, the investment horizon need not always be long term. It depends upon the stage of trend when the investor decides to take position.