Does somebody know why the BTC price dropped with 5%? Is there a reason?

What I have read on the forum the last couple of days it was expected that the BTC price and ETH price would rise.
There are several reasons why BTC prices are down now, one of them is because many people are selling BTC rather than buying, then the price stability of coins will be disrupted. but in my opinion, this is your chance to start buying BTC and invest it.