格隆汇2月28日｜周四美股大幅下跌，标普500指数和纳斯达克指数受英伟达暴跌拖累，纳指重挫2.78%创下一个月来最大单日跌幅，同时投资者关注反映经济降温的最新数据。英伟达股价大跌8.5%，市值蒸发2740亿美元。尽管公司营收预测向好，但其季度毛利润率指引未达市场预期。此外，DeepSeek推出的低成本AI模型令AI投资热度降温，而一份分析师报告显示微软可能缩减部分数据中心租约，加剧了市场对AI投入过剩的担忧。英伟达股价目前已较1月6日创下的历史高点回落近20%。

海量资讯、精准解读，尽在新浪财经APP

Disclaimer: Investing carries risk. This is not financial advice. The above content should not be regarded as an offer, recommendation, or solicitation on acquiring or disposing of any financial products, any associated discussions, comments, or posts by author or other users should not be considered as such either. It is solely for general information purpose only, which does not consider your own investment objectives, financial situations or needs. TTM assumes no responsibility or warranty for the accuracy and completeness of the information, investors should do their own research and may seek professional advice before investing.