[Microsoft Stock Declines for Nine Consecutive Days, Falls Over 32% from Peak] According to Zhitong Finance, Microsoft's U.S. stock continued to decline at today's opening, marking its ninth consecutive day of losses, with a drop of over 32% from its peak. It is on track to record its worst quarterly performance since 2008, as AI "bites into" the company's growth prospects from two directions. Concerns over investments in artificial intelligence infrastructure and competition from AI startups are driving Microsoft's stock toward its worst quarterly performance since the global financial crisis.