ETH price is grabbed of the hand of the BTC price, if BTC rises, so does ETH. That's what I've been seeing all this time. Today ETH price is at 294 USDT on poloniex and going down as BTC price, also the fact that you can't withdraw ETH on poloniex makes everybody sell to withdraw making its price lower, my advice is buy ETH as soon as Poloniex enable ETH withdrawals.