英伟达缘何大跌？一份报告成“元凶”

Core Viewpoint - The article discusses the recent sell-off of tech stocks in the U.S., particularly those related to AI, following warnings about potential overvaluation and a report from MIT indicating that 95% of companies have not seen returns from their generative AI investments [1][2]. Group 1: AI Investment Insights - The MIT report titled "The Generative AI Gap: The State of Business AI in 2025" reveals that despite companies spending $30 to $40 billion on generative AI, 95% have not achieved commercial returns [1][2]. - The research highlights a significant gap in success rates, with only about 5% of AI pilot projects leading to rapid revenue growth, while most projects show stagnation with negligible impact on profit [2][3]. - Successful AI implementations are often linked to partnerships with professional vendors, achieving a success rate of approximately 67%, compared to only 22% for internally developed solutions [4]. Group 2: Market Reactions and Trends - The sell-off in tech stocks, including notable declines in Nvidia (3.5%), Palantir (9.4%), and Arm (5%), reflects market sensitivity to negative news regarding AI's commercial viability [1][6]. - The report's findings have heightened concerns about the overvaluation of tech stocks, leading to a market correction as investors react to any evidence questioning AI's business feasibility [7]. - The labor market is experiencing disruptions due to AI, particularly in customer support and administrative roles, with companies opting not to fill positions deemed low-value rather than conducting mass layoffs [5].