I don't know, i mean we'll be looking at millions of dollars to be able yo manipulate a market to the extent of seeing it increase its price. That is, without the fact that crypto currency has this price correction phase. So that means that if you're a whale, you'll need to look at your portfolio 24/7 to get chump change.
I think it can be predicted that the current market capitalization will decline, of course the big decline will make BTC back to dump. but I don't know how many whales move together