What's a bitcoin worth? Lately nobody knows for sure, but after a wild ride on Friday, it's worth a good deal less than it was Thursday.
After losses over the last few days, the digital currency fell as much as 30 per cent overnight in Asia, and the action became so frenzied that the website Coinbase suspended trading. It later made up much of that ground, and slumped 9.5 per cent to $14,042 Friday, according to the tracking site CoinDesk.
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