Bitcoin open contracts have risen 42% since December 4 – CNBC Television Share Bitcoin open contracts have increased by 42% since December 4thCNBC tv . Share business newscablecable newsCNBCequitiesfinancial newsfinancial sharelatest newsmoneymoney tipsnews channelnews stationSquawk on the Streetstock marketstock market newsUS NewsWorld news Editorial staff Latest News Give a Comment Cancel Reply Save my name, email, and website in this browser for the next time I comment.