美股AI与半导体概念股暴跌致科技富豪财富大幅缩水
Start here
2026年11月5日，因市场担忧巨额AI基建投入的回报及政策变动可能放缓AI数据中心扩张，美股科技股与芯片产业链遭遇集中抛售。纳斯达克综合指数大跌5.5%，创2025年4月以来最大单日跌幅，开盘6分钟便回吐中期选举后的全部涨幅，纳指单日市值蒸发约2.5万亿美元。费城半导体指数暴跌逾12%，创历史第二大单日跌幅。个股方面，英伟达下跌约9%（此前报道为9.3%），市值蒸发近4500亿美元；AMD下跌超17%，美光跌幅超17%，戴尔科技下跌约15%。受此影响，马斯克、迈克尔・戴尔、黄仁勋、拉里・埃里森与扎克伯格五位科技富豪单日身价合计缩水1529亿美元。
AI-generated from reports · Updated 5 hours ago
Report timeline
Follow the reports to see different sides of the story.
- IT之家 · AI 筛选SelectedUS chip and AI stocks tumble as Nasdaq posts worst single-day drop, erasing post-midterm gains
US chip and AI supply chain stocks suffered a broad sell-off on Thursday, with the Nasdaq Composite tumbling 5.5% in its steepest single-day decline since April 2025, wiping out all gains made since the midterm elections within just six minutes of the opening bell. The Philadelphia Semiconductor Index plummeted over 12%; Nvidia dropped about 9%, losing nearly $450 billion in market value, while AMD and Micron both plunged more than 17%. Around $2.5 trillion in market value was wiped out from the Nasdaq in a single day, fueled primarily by mounting investor concerns over real returns on massive AI infrastructure investments and a potential slowdown in data center buildouts.
- IT之家 · AI 筛选SelectedUS Tech and Semiconductor Stocks Face Sell-Off, Wiping $152.9 Billion from Top Five Tech Tycoons in a Single Day
On November 5, US stocks saw a sharp sell-off across tech and AI hardware sectors amid investor concerns that policy shifts could slow AI data center expansion. The Philadelphia Semiconductor Index tumbled about 12%, marking its second-largest single-day drop in history. Among individual stocks, NVIDIA fell 9.3%, AMD sank 17.3%, and Dell Technologies shed roughly 15%. In total, five billionaires—Elon Musk, Michael Dell, Jensen Huang, Larry Ellison, and Mark Zuckerberg—saw a combined $152.9 billion wiped from their net worth in a single day.
Story heat trend
Current heat 9·Comparable peak 10（Nov 6 09:00）·Comparable change, last 24 hours–
Trends compare only the same parties observed continuously, so the scope can be narrower than current heat counts. Move the pointer or tap the chart to see hourly heat; use the left and right arrow keys on a keyboard.