Some of them yes some not, just when i though i can make little profit yesterday the price of coin im holding go down rapidly 
choose wisely mate that all i can say
choose wisely mate that all i can sayWell but it all depends on when are you choosing to do that, i think that investing is something that needs to get done with cautious. Investing is not for everyone, you can easily lose a lot of money becuase of a little mistake.