美股开盘涨跌不一，道指跌0.24%，纳指涨0.78%，标普500指数涨0.34%。美股区块链概念股涨多跌少，柯达下跌0.74%，埃森哲上涨0.02%，overstock.com上涨6.28%；RiotBlockchain上涨2.93%，MarathonPatent上涨4.57%，Square上涨0.15%。