Periodic manipulations with the price of bitcoin on the cryptocurrency market are still quite possible. A group of holders of large wallets with bitcoins, quite in collusion, may influence the price of bitcoin in the cryptocurrency market. However, hardly anyone can fully control the market. To do this, you need to throw out a large number of bitcoins on the market, and then buy them. This will be contrary to the task of making a profit, such control is likely to cause losses, since the cryptocurrency market is very unpredictable.