Maybe this is true, because it often happens like that. I often see Ethereum price movements often coincide with Bitcoin prices, When the price of Bitcoin rises will be followed by the increase in the price of Ethereum. Not only Ethereum, but also other Altcoin prices. And this I think is not unusual, because Bitcoin is the parent of the Cryptocurrency currency. And every change in the price of Bitcoin will always be followed by the price of Altcoin, including this Ethereum.