Wednesday's losses were led by Ether, the second-largest virtual currency. It fell 6 per cent to $171.15 at 7:50 a.m. in New York, extending this month's retreat to 40 per cent. Bitcoin was little changed, while the MVIS CryptoCompare index fell 3.8 per cent. The value of all virtual currencies tracked by CoinMarketCap.com sank to $187 billion, a 10-month low.
The virtual-currency mania of 2017 -- fueled by hopes that Bitcoin would become “digital gold” and that blockchain-powered tokens would reshape industries from finance to food -- has quickly given way to concerns about excessive hype, security flaws, market manipulation, tighter regulation and slower-than-anticipated adoption by Wall Street.