this volatility of btc sometimes serves as an advantage for the investors where they can take daily profits by making long positions of short positions in the futures market but sometimes it makes the other coins to fall as well by creating uncertainty in the market.
That is the normal characteristics of bitcoin ,when it is going high this means that the coin market is not sleeping , it is evolving and that the cryptocurrency is in running conditions but yheir are also factors that contribute the high volatility of bitcoins and other crypticurrency altcoins in the market,