U.S. chip stocks plummeted Tuesday, erasing approximately US$1.3 trillion [1] in market value as a global sell-off hit AI-focused companies.
The decline signals a growing skepticism among investors regarding the sustainability of the artificial intelligence rally. This shift suggests that the market may be rotating away from high-valuation tech stocks after a period of rapid growth.
The volatility began in Asian equity markets, where South Korea's Kospi index fell about 10% from a record high [2]. This downturn created a ripple effect that reached U.S. markets on Tuesday, June 23, 2026 [3].
Major U.S.-listed chipmakers, including Nvidia, Micron Technology, and Advanced Micro Devices, saw significant losses. The sell-off was driven by fears that the AI sector had become a bubble, prompting investors to reduce their exposure to semiconductor stocks.
While some reports indicated earlier instability on Friday, June 21, the most acute impact on U.S. indexes occurred Tuesday [3]. The scale of the loss, totaling US$1.3 trillion [1], highlights the concentration of market wealth within a few AI-centric firms.
Market analysts said that the rotation out of these stocks reflects a broader uncertainty about when AI investments will yield tangible financial returns. The coordinated drop across both Asian and American exchanges underscores the interconnected nature of the global semiconductor supply chain.
“U.S. chip stocks plummeted Tuesday, erasing approximately US$1.3 trillion in market value.”
This market correction indicates a transition from speculative enthusiasm to a demand for fundamental proof of AI profitability. Because the semiconductor industry serves as the backbone for all AI development, a sharp decline in these stocks can signal a broader cooling of the tech sector's growth trajectory.
