whales are buying Bitcoin, but not because of the price. They are buying Bitcoin, because of the underlying technology. They know that it has the potential to change many things. It started with the miners, and now with the introduction of payment card, it has become more interesting for the users. The value of the cryptocurrency will skyrocket, once all the technical issues are resolved.
If you look at the order book on LocalBitcoins, you’ll see an order for 0.99 BTC at $90,000. You don’t see that often, but it’s not uncommon to see an order at $70,000 or above on the order book. It may be a whale or a few whales betting that BTC will go down and they will buy more BTC at a lower price.