You can say this week a the "World market crash week".And the crash is not only in the crypto-coin market.
US Stock market loses nearly $1 trillion on the week, and White-house is very much concern about the fact. https://www.cnbc.com/2018/02/02/stock-market-loses-nearly-1-trillion-on-the-week.html
Asian market is in the same position market have very much down this week http://money.cnn.com/data/world_markets/asia/ Australian and Asian stock markets suffers biggest one-day points fall yesterday.