I think whales manipulate the market, so the market falls down.
+ whales push people to sell on panic. Well, it's quite possible we're now somewhere near the bottom. At least if btc won't go outside the uptrend that it's in now.
It can't be the same whales all the time. They had to sell so much to push Bitcoin from 20000 to 5000 that most of them are out already. The market needs to stay in balance if whales were to push down the whole time they'd run out of money soon and this is happening as we speak. Whale manipulators sold out and there's no more bear steam to get us lower. When those whales see it they will start buying back.