美股三大指数小幅高开 微软涨超3%总市值重新站上4万亿美元

Core Points - The U.S. stock market opened slightly higher, with the Dow Jones up 0.65%, the S&P 500 up 0.31%, and the Nasdaq Composite up 0.54%, all reaching new historical highs [1] - Microsoft shares rose over 3%, with a total market capitalization surpassing $4 trillion, following OpenAI's agreement to purchase an additional $250 billion worth of Microsoft Azure services [1] - United Parcel Service (UPS) opened with a 12% increase, raising its full-year earnings outlook for 2025 to at least $14.90 per share, with adjusted earnings per share projected to be at least $16.25 [1]