Nasdaq suffers biggest daily drop in 19 months as AI fears spark tech selloff
Thestandard · 3 SOURCESabout 2 hours ago2 MIN

Summary
The Nasdaq Composite suffered its steepest single-day decline in 19 months on Thursday as investors fled AI-related stocks amid fears that tighter regulations could slow the infrastructure buildout that has powered this year's record-breaking tech rally. Democrats' sweep of Tuesday's midterm elections, including victories in states where data center development has become politically contentious, triggered concerns that government-ordered pauses on new facilities and stricter scrutiny of AI expansion could be on the horizon .
Key Points
- The Nasdaq Composite tumbled 5 percent, confirming a technical correction as it dropped more than 10 percent from its October 6 record-high close ;
- The Nasdaq 100 shed 5.2 percent, erasing approximately $2 trillion in market value, and had already confirmed a correction on Monday ;
- Semiconductor stocks suffered the heaviest losses, with Nvidia falling nearly 9 percent, AMD tumbling over 15 percent, and the Philadelphia SE Semiconductor index plunging over 10 percent ;
- The VIX fear gauge spiked 48 percent, its biggest one-day gain since the April 2025 "Liberation Day" tariff shock, while Tesla dropped 12 percent ;
- Data center operators including CoreWeave, Nebius Group, IREN, and Applied Digital fell over 12 percent as investors worried about potential delays to billions of dollars in AI infrastructure projects ;
- Analysts noted that sentiment appears to be shifting fundamentally, with the scale of the declines suggesting a broader reassessment of AI growth prospects ;
- Melissa Brown of SimCorp observed that while a complete halt to AI development seems unlikely, any slowdown would raise concerns because the AI growth narrative has relied heavily on rapid infrastructure expansion .
Why It Matters
For Hong Kong investors with exposure to US tech stocks through ADRs or tech-focused ETFs, the correction signals a need to reassess portfolio allocations given the heightened regulatory uncertainty facing AI infrastructure . The selloff reflects growing market concerns that AI sector growth may face political headwinds under Democratic control, potentially affecting financing conditions for neocloud operators and delaying the massive capital expenditure programs that have driven semiconductor demand .
For Hong Kong investors with exposure to US tech stocks through ADRs or tech-focused ETFs, the correction signals a need to reassess portfolio allocations given the heightened regulatory uncertainty facing AI infrastructure . The selloff reflects growing market concerns that AI sector growth may face political headwinds under Democratic control, potentially affecting financing conditions for neocloud operators and delaying the massive capital expenditure programs that have driven semiconductor demand .