Since most of the alt coins are traded with BTC or ETH. SO I think altcoins prie are dependent on the price of this two.
What is your opinion please share.
all of erc 20 altcoins is made up in etheruem and when the price of bitcoin gets down the affect in altcoin is strong because eth price is depend on bitcoin price, when the price of bitcoin gets down its get domino effect the price of almost all of altcoins get down too.