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				Bitcoin has seen eye-watering gains in recent months and has 
				more than doubled in value in the past seven weeks alone. It hit 
				as high as $7,066.44 on the Luxembourg-based Bitstamp exchange 
				on Thursday.
 The latest rally was driven by news earlier this week that the 
				world's largest derivatives exchange operator CME Group <CME.O> 
				is to launch bitcoin futures.
 
 The price move takes bitcoin's aggregate value, or "market cap" 
				-- its price multiplied by the number of bitcoins released into 
				circulation -- to more than $117 billion, according to industry 
				website Coinmarketcap.
 
 The aggregate value of all cryptocurrencies is now at a record 
				high of over $190 billion, the website said.
 
 (Reporting by Jemima Kelly, Editing by Abhinav Ramnarayan)
 
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