US Chip Stocks Tumble on China AI Chip Ban Report
Nvidia and AMD shares fall as Beijing reportedly moves to block foreign semiconductors in state-funded data centers, escalating tech tensions.
Shares of major U.S. semiconductor firms fell sharply in Tuesday trading following reports that Beijing has issued new directives banning the use of foreign-made AI chips in state-funded data centers. The move marks a significant escalation in the U.S.-China tech rivalry and directly threatens a key market for industry leaders Nvidia and AMD.
Nvidia (NVDA) shares tumbled 3.96%, closing down $8.19 at $198.69, while rival AMD (AMD) saw its stock fall 3.70%, or $9.60, to $250.05. The sell-off was triggered by news that Chinese officials have begun enforcing guidelines to exclusively use domestic semiconductor technology in new government and state-backed data infrastructure projects. This policy aims to accelerate China's push for technological self-reliance and reduce its dependency on American innovation, particularly in the critical field of artificial intelligence.
The directive poses a direct challenge to U.S. chipmakers who count China as a major source of revenue, despite existing U.S. export controls designed to slow Beijing's technological ascent. According to recent financial disclosures, China accounted for approximately 24% of AMD's revenue and 11% of Nvidia's revenue in the first half of fiscal 2025. For Intel, which is also impacted by the new rules, China represents an even larger market, contributing 27% of its total revenue in 2023.
This latest salvo in the tech war comes just weeks after a temporary truce was reportedly agreed upon in the broader U.S.-China trade dispute, highlighting the deep-seated nature of the technological competition between the two economic superpowers. The U.S. has progressively tightened restrictions on the sale of high-performance AI chips to China, prompting Nvidia and others to develop lower-specification processors specifically for the Chinese market. However, Beijing's new policy appears designed to carve out American technology from the lucrative state-funded sector entirely.
Analysts note the move is part of China's long-term strategy to build a domestic semiconductor ecosystem, a goal it has pursued with increasing urgency. While Chinese-made chips currently lag behind the cutting-edge performance of their U.S. counterparts, directing state investment toward domestic providers is intended to close that gap over time. This puts sustained pressure on U.S. firms that have long benefited from China's rapid industrial and technological expansion.
The financial stakes are substantial. Bank of America previously estimated that U.S. export restrictions could put up to $20 billion of Nvidia's annual revenue at risk. AMD's recent earnings call already highlighted "regulatory headwinds on chip sales to China," a sentiment echoed across the industry as companies navigate an increasingly fragmented global market.
Investors will be closely watching for further details on the scope and enforcement of the new Chinese guidelines, as well as any potential retaliatory measures from Washington. For now, the directive casts a shadow over the future growth prospects of U.S. chipmakers, who must now contend with being locked out of a critical segment of one of the world's largest technology markets.