The price of most altcoins is traded for btc and btc is overbought for past 2 months, time for correction...
we are in correction time for a few months and altcoin getting drops too so I think after this, we can see the altcoin will start to rise again. people prefer to hold bitcoin and only a few of them that still hold altcoin and if they have chance to buy at the lower price, they think it is better to wait until the price is down. the altcoin is not increased too high and only get more drop because bitcoin is down too hard.