https://www.cnbc.com/2018/10/12/bitcoin-price-cryptocurrency-market-drops-as-xrp-ethereum-plunge.html

Over $6 billion was wiped off global cryptocurrency markets in a day, led by XRP and ethereum as prices of digital coins continued to fall.

The entire market capitalization or value of cryptocurrencies had plunged $6.72 billion in 24 hours as of about 11:32 a.m. HK/SIN time on Friday, according to data from Coinmarketcap.com. That came after a sharp sell-off across the board on Thursday, which erased billions of dollars of value in a matter of hours.