Bitcoin is already having a bad year.
For the first time since 2015, the cryptocurrency began a new year by tumbling, extending its slide from a record $US19,511 reached on December 18.
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Bubble or boom? Bitcoin's heady ride
A proven currency, or a predictable flop? Whatever side you're on, Bitcoin took the financial world by surprise in 2017.
The virtual coin traded at $US13,150 as of 12.58pm in New York, down 8.1 per cent from Friday, according to data compiled by Bloomberg. That's also a fall from the $US14,156 it hit on Sunday, according to coinmarketcap.com, which tracks daily prices.
Bitcoin got off to a much stronger start last year, and then kept that momentum going, eventually creating a global frenzy for cryptocurrencies.
In a sign of its phenomenal price gain in 2017, it rose 3.6 per cent on the first day of 2017 to $US998, data from coinmarketcap.com show. It ended the year up more than 1300 per cent.
That rally drew a growing number of competitors and last month brought bitcoin to Wall Street in the form of futures contracts.
It reached the December 18 peak hours after CME Group debuted its derivatives agreements, which some traders said would encourage short position-taking.
Bloomberg