Bitcoin surges more than 12% to an all-time high above $2,700 then gives it all back
Bitcoin hit a record $2,791.70 before erasing most of its gains, according to CoinDesk.
That's more than twice its April 30 price of $1,347.96.
At Thursday's record, bitcoin had gained more than 45 percent in a week and more than 180 percent this year.
Evelyn Cheng | Fred Imbert
17 Mins Ago
CNBC.com
Bitcoin surges 11% to all-time high above $2,700; Has now doubled in May Bitcoin surges 11% to all-time high above $2,700; Has now doubled in May
2 Hours Ago | 00:35
Bitcoin jumped more than 12 percent to an all-time high of $2,791.70 Thursday on strong demand out of Asia, bringing its gains for the month of May to more than 100 percent, according to CoinDesk.

But the digital currency's volatility became apparent later in the session, as it gave up most of the gain and was last little changed at about $2,489.60, according to CoinDesk.

Bitcoin, intraday

Source: CoinDesk

The rollover came just as interest in Bitcoin was peaking and apparently overwhelming some digital exchanges where the coins can be bought and sold. CoinBase told Reuters in the afternoon: "We're continuing to experience degraded performance on our website and mobile app."

At Thursday's record, bitcoin had gained more than 45 percent in a week and more than 180 percent this year.