美股三大指數集體高開,道指漲0.36%,納指漲0.61%,標普500指數漲0.44%。美股區塊鏈概念股漲跌互現,柯達上漲2.35%,埃森哲上漲0.23%,overstock.com上漲4.79%;RiotBlockchain下跌11.31%,MarathonPatent下跌10.64%,Square下跌0.45%。