This depends well. I sometimes buy and sell it with little profit, sometimes I buy and hold it. This totally depends on my personal condition. But the answer is a yes, generally.
So it was all just personal preferences then. Just sometimes huh? Well if you have that much of the coins, why don't you often do the trading instead. I mean It will definitely have more profit than you think.
Sure Investment is like the same thing but hey, this is just short term and we always want that. We constantly need money after all. And besides if you're going to invest something in the crypto might as well have a very large amount stored. If you're a whale that is.