美股三大指数集体高开，道指涨0.48%，纳指涨0.34%，标普500指数涨0.42%。美股区块链概念股涨多跌少，柯达上涨0.37%，埃森哲上涨0.76%，overstock.com下跌1.17%；RiotBlockchain上涨3.21%，MarathonPatent上涨2.72%，Square上涨0.46%。