This means literally nothing.
As said, they buy and dump and buy and dump, not holders, no believers, simply business men.
And they have so much money they literally invest in anything they can. The ultimate diversification. From so many fields, overall they cannot lose. And if any of the assets they invested in becomes a bad business they simply drop it. They do afford loses and they'll minimize the loses as soon as they can.

Actually it's more a bad news. They most certainly bought in when the prices were low. And when the targeted price is met, they'll dump and we will not understand what happened.