The only one thing which describes this situation lies inside the economic process of cryptocurrencies. Almost all altcoins are bought using 2 main cryptocurrencies, Bitcoin or Ether, thus many assets are pegged against BTC or ETH, a when bitcoin goes down it takes all the coins down as well. Current situation on the market is just terrible because it leaves no choice for people with small amount of crypto to sell it and leave the market forever, but the best part when all the altocins are going down dramatically - you can buy them on low and make the profit once they gonna take their price positions back. That's why I recommend in the downtrend to invest your assets in different ICOs so you can make sure 5 out of 10 investments will make more than 5x,. Recently I have invested in a project which is called Cryptics , these guys have developed a platform which is backed by AI and it predicts the price of many cryptocurrency assets with high 70% accuracy rate.