'Reality check' as bitcoin tumbles 15 per cent in a dayStuff How bitcoin works. Bitcoin fell as much as 15 per cent on Friday, extending its loss from its high this month to more than 30 per cent. The digital currency dropped to as low as $13,048 before trading at $14,079.05 as of 5.07pm in NZ. GETTY "Unsophisticated" investors hold the power with bitcoin, and that's made it fragile, experts say. STUFF.CO.NZ Blockchain, the technology behind virtual currency Bitcoin, is a large focus at Techweek 2017.

Source: Stuff December 22, 2017 04:30 UTC