标普500指数高开3.54点，涨幅0.06%，报6266.80点；道琼斯工业平均指数低开30.55点，跌幅0.07%，报44427.75点；纳斯达克综合指数高开25.14点，涨幅0.12%，报20636.48点。

Core Points - The S&P 500 index opened up by 3.54 points, reflecting a gain of 0.06%, reaching 6266.80 points [1] - The Dow Jones Industrial Average opened down by 30.55 points, indicating a decline of 0.07%, settling at 44427.75 points [1] - The Nasdaq Composite index opened up by 25.14 points, showing an increase of 0.12%, with a value of 20636.48 points [1]