Bitcoin prices plunged sharply to below $11,000 on Friday, shedding a third of its value in just 24 hours, according to data from CoinDesk.com. It later rebounded slightly to around $12,000 -- but that's still a stunning 25% less valuable than bitcoin was Thursday morning.
Bitcoin plunged by 30 percent to below $12,000 on Friday as investors dumped the cryptocurrency after its sharp rise to a peak close to $20,000 prompted warnings by experts of a bubble.