市场避险情绪升温，美股三大指数集体低开，微软跌超2%

Core Viewpoint - The U.S. stock market opened lower on December 3, with all three major indices declining due to rising risk aversion and negative news from Microsoft regarding its AI software sales quotas [1] Market Performance - The Dow Jones Industrial Average fell by 0.05% - The S&P 500 index decreased by 0.21% - The Nasdaq index dropped by 0.45% [1] Company Impact - Microsoft reported a reduction in sales quotas for its AI software, leading to a 2.77% decline in its stock price - This decline in Microsoft's stock negatively affected the performance of technology stocks and the overall market [1]