There was no immediately apparent reason for the gains. Other major cryptocurrencies traded slightly higher, with ethereum up about 5.7 percent near $ 870 on Coinbase.
Bitcoin 24-hour performance
Cross-border currency exchange company Circle did announce around the time of the spike that it is acquiring Poloniex, a leading cryptocurrency trading platform. Online releases by both companies about the news did not mention an acquisition price.
Poloniex has the seventh-largest market share of U.S. dollar-bitcoin trading volume, according to CryptoCompare.
Interest from Japanese investors was slightly greater than it has been recently, according to data from CryptoCompare. The website showed bitcoin trading in yen accounted for about 55 percent of trading volume, while U.S. dollar trading volume accounted for about 20.5 percent.