Bitcoin broke $11000, then plunged 18%, as thousands of newbies signed up for cryptocurrency ...

Bitcoin's price soared past $11,000, plunged as low as $9,300, and then recovered to around $10,000—all in the space of 24 hours of trading yesterday (Nov. 29). It was an object lesson in the volatility of the bitcoin markets. However, the violent price swings didn't stop hundreds of thousands of users ...