It depends on the demands and supply no one is controlled in Bitcoin. Because it is decentralised cryptocurrency so only market circulation is decide the price of Bitcoin. Nowadays many restriction and supporting are occur in the market so it is little fluctuating but know it will back to form. It is going to pump in the market you can analyse your own then only you are understanding the crypto platform.

Most of the time, it depends on supply and demand, if enough people buy BTC, BTC then there will be a big rise in the price of, and national policy can cause a lot of people selling bitcoin, so will cause the bitcoin a drop in prices.