Bitcoin, Ether, Ripple and other cryptos lose nearly $700 billion since January
The market value of all cryptocurrencies tracked by CoinMarketCap.com sank to $138 billion, down from about $835 billion
Hong Kong: The great cryptocurrency crash of 2018 is heading for its worst week yet. Bitcoin sank toward $4,000 and most of its peers tumbled on Friday, extending the Bloomberg Galaxy Crypto Index’s weekly decline to 25 percent. That’s the worst five-day stretch since crypto-mania peaked in early January.