When people ask trading strategy then i told them, it is simple strategy that buy altcoin in a low price and sell them in a high price, and when we see the price is rising then sell it on the spot, if we till hold for a time then time will be changed and we lose the chance to make profit.
But bitcoin has opposite way, we could hold bitcoin for a long time because bitcoin has no ended and that's why bitcoin is my favorite coin than others.