美股小幅高开，道指涨0.26%，纳指涨0.34%，标普500指数涨0.32%。美股区块链概念股涨跌各异，柯达上涨0.84%，埃森哲上涨0.03%，overstock.com上涨10.85%；RiotBlockchain下跌5.74%，MarathonPatent下跌4.77%，Square上涨0.50%。