when bitcoin rises then altcoin prices will also rise but when bitcoin prices fall, altcoin will also decrease as altcoin does not have the courage to do very much increase while rising bitcoin prices and i think altcoin many follow bitcoin price movements because altcoin price exchange depends on the bitcoin price
that's what's happening and what I've also seen to date, the rise and fall of bitcoin followed by other altcoins, why that can happen, whereas when bitcoin has decreased in price, it's another altcoin opportunity to raise its price and to prove that altcoin it has the potential and its own goal to be able to raise the price and make people will be interested can invest in it.