Whales do enjoy making big moves that change the prices, however it is not going to be as easy as they used to, why? Because there are now ETF's, which means thousands go into bitcoin world all the time, making it much harder to move. Back in the day a few whales could get in and make a few hundred million dollar move, and could change the price %10+ in a single day, not just them, but if they all bought at the same time, we would all buy seeing those moves too, or same for selling. These days its all ETF money and that means for whales to make a move, they would need a lot more money.