Bitcoin, the world's biggest and best-known cryptocurrency, has seen a more than fifteen-fold surge in its value since the start of the year.
It climbed to as high as $15,212 on the Luxembourg-based Bitstamp exchange just after 1400 GMT, having traded just above $13,000 12 hours earlier.
Many market-watchers said the launch this weekend of bitcoin futures by CBOE, one of the biggest global derivatives exchanges, was helping drive up the price on expectations it would draw more investors to the market.
(Reporting by Jemima Kelly, Editing by Abhinav Ramnarayan)
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