Asian Chip Stocks Tumble on China Competition Fears, AI Funding Concerns

A broad sell-off hammered Asian technology stocks on Tuesday, with major semiconductor firms in Japan and South Korea seeing double-digit losses. The plunge was fueled by a combination of investor concerns over rising competition from China's domestic chip industry and questions surrounding the immense capital required to fund the ongoing artificial intelligence boom.

Widespread Declines Hit Key Markets

The rout was particularly severe in South Korea, where the KOSPI index plummeted almost 10%, hitting a three-month low and triggering a market circuit breaker. The index is on pace for its largest monthly decline since the 1997 Asian financial crisis.

Leading the losses were major chipmakers:

• SK Hynix (KRX:000660) and Samsung Electronics (KRX:005930) both saw their shares fall by more than 12%.
• In Japan, the Nikkei index fell about 4% to a two-year low. Chip equipment maker Tokyo Electron (TYO:8035) dropped 11%, while memory chip producer Kioxia (TYO:6600) plunged 18%.

The sell-off in Asia followed a negative lead from the U.S., where the Philadelphia Semiconductor Index (SOX) declined 2.2% on Monday.

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China's Ascendant Chip Sector Spooks Investors

A primary catalyst for the negative sentiment was news highlighting China's progress in developing its own semiconductor supply chain. *The Information* reported on Monday that China has begun manufacturing its own immersion deep ultraviolet (DUV) lithography machines, a critical chipmaking tool long dominated by Dutch supplier ASML (NASDAQ:ASML). ASML shares fell 8.5% following the report.

Adding to competitive fears, China’s fourth-largest memory maker, CXMT Corp (SHA:688825), raised $8.6 billion in a successful market debut on Monday. Kim Seok-hwan, a market analyst at Mirae Asset Securities, told Investing.com that the market's concern is less about CXMT's current earnings and "more in its potential for accelerated capacity expansion to rival Korean companies."

AI Funding and Macro Headwinds

Questions about the sheer scale of investment in AI also weighed on the market. Shares of Nvidia (NASDAQ:NVDA) fell 5% overnight after the *Wall Street Journal* reported the company is in talks to provide approximately $250 billion in financing guarantees for an OpenAI data center project. Broader market pressures, including worries about potential U.S. interest rate hikes, also contributed to the risk-off environment.