美股开盘涨跌不一：道指微涨0.04%，标普500微升0.02%，纳指小幅回调0.01%
芯片股承压下行，英伟达(NVDA.O)跌1.23%，AMD(AMD.O)跌0.9%
纳斯达克中国金龙指数强势走高，涨幅达2.04%，百度(BIDU.O)大涨7.9%，阿里巴巴(BABA.N)涨2.14%
Lyft(LYFT.O)股价飙升11.9%，公司与Alphabet旗下Waymo达成自动驾驶合作
对投资者的影响：芯片股疲软或暗示短期行业波动，中概股普涨反映市场信心回升，Lyft与Waymo合作可能提振自动驾驶板块预期，投资者应关注技术股分化及合作驱动型机会。
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