Chicago exchange CME Group has announced its highly-anticipated bitcoin options are now open for trading. Options on CME's bitcoin futures contracts launched on the CME Globex around 15:00 UTC Monday. Each contract, quoted in U.S. dollars, represents five bitcoin and is cleared centrally to avoid counterparty risk. CME relies on trade flow data from several of the large bitcoin exchanges to accurately track bitcoin's price. Bitcoin derivatives have been available on multiple cryptocurrency exchanges since at least 2014, but CME was one of the first platforms to offer investors regulated products when it first ... (full story)