标普500指数高开10.37点，涨幅0.16%，报6381.23点；道琼斯工业平均指数高开44.91点，涨幅0.10%，报44677.90点；纳斯达克综合指数高开42.11点，涨幅0.20%，报21140.40点。

Core Points - The S&P 500 index opened up by 10.37 points, representing a 0.16% increase, reaching 6381.23 points [1] - The Dow Jones Industrial Average opened up by 44.91 points, reflecting a 0.10% increase, reaching 44677.90 points [1] - The Nasdaq Composite index opened up by 42.11 points, indicating a 0.20% increase, reaching 21140.40 points [1]