美股三大指数小幅收涨，道指涨0.32%，纳指涨0.02%，标普500指数涨0.09%。

Group 1 - The three major U.S. stock indices experienced slight gains, with the Dow Jones Industrial Average rising by 0.32% [1] - The Nasdaq Composite increased by 0.02% [1] - The S&P 500 index saw a rise of 0.09% [1]