Wall Street faced a sharp downturn on Monday as fears over Chinese artificial intelligence (AI) advancements spooked investors, particularly in the tech sector. Nvidia, a key driver of the AI boom, saw its stock plummet by 13%, erasing hundreds of billions of dollars in market value.
The tech-heavy Nasdaq Composite fell 3.5% shortly after the opening bell, while the broader S&P 500 dropped 2%. This marked one of the most significant single-day sell-offs in recent months, with Big Tech firms bearing the brunt of the losses. The sell-off was triggered by the emergence of DeepSeek, a Chinese AI start-up that has developed cutting-edge technology rivaling U.S. giants like OpenAI and Meta but at a fraction of the cost.
DeepSeek Shakes the AI Industry
DeepSeek’s release of its latest AI model last week raised eyebrows in the tech world. The model demonstrated performance on par with U.S. industry leaders while using significantly fewer specialized Nvidia chips. This development has challenged the prevailing belief that large-scale AI breakthroughs are only achievable by well-capitalized U.S. firms, such as Nvidia, Alphabet, and Meta.
Nvidia sheds more than $600bn in value as DeepSeek sparks market rout
DeepSeek’s innovations have disrupted markets by revealing a cost-efficient path to advanced AI capabilities. The Chinese start-up used approximately $6 million in computing resources to train its model, significantly less than the hundreds of millions typically spent by its American counterparts. Investors fear this could upend the dominance of U.S. firms in the AI sector and potentially reduce demand for Nvidia’s high-end chips.
Investor Concerns Over Sky-High Valuations
Nvidia, which soared in value throughout 2023 on expectations of widespread AI adoption, saw its stock decline sharply. Other chipmakers, such as Arm, Broadcom, and Micron, also experienced significant losses, along with semiconductor equipment manufacturers like ASML. The uncertainty spilled over to other Big Tech stocks, including Alphabet and Microsoft, which fell by 3% and 5%, respectively. Oracle, a key partner of OpenAI, dropped 8%.
The market volatility reflects growing doubts about whether the AI boom will deliver the immediate, transformative profits investors had anticipated. Analysts noted that while AI infrastructure spending is substantial, businesses are increasingly looking for practical, cost-effective solutions rather than relying on expensive, high-capacity systems.
Market Reaction and the Broader Implications
Wall Street’s “fear index,” the VIX, surged 5.6 points to 20.5 on Monday, its highest jump since December. The spike in volatility underscores heightened investor sensitivity to perceived threats to U.S. tech dominance. Monday’s sell-off also impacted global markets, with tech-heavy indices in Europe and Japan registering declines.
Robert Tipp, chief investment strategist at PGIM, described the correction as “very healthy,” suggesting it could act as a stress test for the broader market. “This signals a potential threat to the vanguard of AI but also highlights knock-on effects to capital expenditure across sectors,” Tipp said. He added that if markets stabilize, this could signal a robust foundation rather than an over-reliance on a narrow group of stocks.
DeepSeek and the U.S.-China AI Race
DeepSeek’s breakthrough highlights growing competition between the U.S. and China in the global AI arena. Despite U.S. export controls aimed at limiting China’s access to advanced chips, the start-up has managed to innovate using a more efficient approach. Analysts have raised concerns that these advancements could signal a shift in the AI balance of power, with China leveraging open-source technologies and alternative methods to bypass U.S. trade restrictions.
Charu Chanana, chief investment strategist at Saxo Bank, noted that DeepSeek’s emergence “serves as a reminder that competition in the global AI arena is intensifying, and Nvidia may not be in the pole position forever.”
Outlook for U.S. Tech Giants
This week, Meta, Microsoft, and other Big Tech firms are set to report their quarterly earnings. The sell-off casts a shadow over these announcements, as analysts anticipate pointed questions about the companies’ ability to maintain growth and compete in an increasingly crowded AI field. Meta, which recently announced higher spending on data centers for AI, saw its shares decline by 1%, reflecting investor jitters.
WedBush senior analyst Dan Ives characterized Monday’s market reaction as an overcorrection, calling it a “golden buying opportunity” for long-term investors. While the competition from DeepSeek is real, Ives emphasized that U.S. firms still dominate in hardware infrastructure and corporate trust. “No U.S. Fortune 500 company will risk using a Chinese AI platform for their data needs,” Ives said.

