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# Asian Chip Stocks Plunge as AI Boom Faces Reckoning
- URL: https://www.theglobalvoice.com/asian-chip-stocks-plunge-as-ai-boom-faces-reckoning/
- Published: 2026-10-13T11:22:52.000Z
- Updated: 2026-10-13T11:22:52.000Z
- Description: Asian chip stocks plunged as Samsung, SK Hynix, Kioxia and SoftBank led an AI-related selloff. Higher financing costs, uncertain returns and growing Chinese competition are forcing investors to reconsider valuations across the semiconductor industry.
- Author: TGV Desk
- Tags: South Korea, Semiconductors, Artificial Intelligence, Samsung Electronics, SK Hynix, Asian Markets, CXMT, Technology Stocks, The Day So Far, has-audio

Asian semiconductor stocks suffered their sharpest selloff in months on Tuesday as investors questioned whether the enormous spending behind the artificial intelligence boom can continue delivering the returns already built into technology valuations.

South Korea was at the centre of the rout. The benchmark Kospi fell more than 6 per cent, extending its decline into a fifth consecutive session. Samsung Electronics dropped approximately 7.4 per cent, while memory-chip manufacturer SK Hynix lost about 10 per cent.

The declines were severe enough to trigger temporary volatility controls on the Korean market. Semiconductor companies carry substantial weight in the Kospi, meaning weakness in Samsung and SK Hynix quickly spread across the broader index.

Losses extended across the region. Japanese memory-chip producer Kioxia fell approximately 13 per cent, Tokyo Electron dropped more than 7 per cent and technology investor SoftBank declined around 8.5 per cent. Taiwan Semiconductor Manufacturing Company lost about 2 per cent, contributing to a similar decline in Taiwan’s Taiex index.

The selloff reflects more than a single disappointing earnings report. Investors are reassessing the financial foundations of an AI infrastructure expansion that has directed hundreds of billions of dollars towards chips, data centres, electricity networks and cloud-computing capacity.

For nearly four years, markets rewarded almost every company positioned to supply the AI buildout. Chipmakers benefited from demand for processors and high-bandwidth memory, while data-centre operators raised debt to finance increasingly expensive computing facilities.

That confidence is now encountering higher borrowing costs. Rising bond yields make long-term technology investments more expensive to finance and reduce the present value investors place on future earnings. Companies whose valuations assume years of rapid AI growth are particularly sensitive to that shift.

An unsuccessful Australian data-centre listing and growing caution in AI-related debt markets have added to concerns that capital, rather than chip availability or electricity supply, could become the industry’s next major constraint. Investors increasingly want evidence that revenue from AI services can justify the infrastructure commitments being announced.

Remarks by Broadcom chief executive Hock Tan added to the nervousness after he compared some AI investors with casino gamblers who did not fully understand what they were financing. His broader comments remained supportive of long-term AI demand, but the gambling comparison reinforced fears that expectations had moved ahead of commercial returns.

Chinese competition created additional pressure on Asian memory producers. ChangXin Memory Technologies recently announced the [mass production of its fifth-generation DRAM platform](https://www.cxmt.com/en/news/info%5F22.html?ref=theglobalvoice.com), claiming that its manufacturing process is approaching the capabilities of the industry’s leading production technologies.

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CXMT said its new platform could produce at least 50 per cent more dies per wafer than its previous generation, reducing costs and improving efficiency. Its expansion raises the possibility of stronger Chinese competition in a memory market dominated by Samsung, SK Hynix and Micron.

The immediate threat remains uncertain because producing advanced chips reliably and at scale is considerably harder than demonstrating technical progress. Nevertheless, the announcement challenged assumptions that South Korea’s largest manufacturers would retain their pricing power while AI demand remained strong.

The reversal comes only weeks after [AI-linked shares fell across the United States and Asia](https://www.theglobalvoice.com/from-nvidia-to-softbank-ai-stocks-fall-as-boom-meets-new-doubts/), suggesting that investor unease has been building rather than appearing suddenly.

The selloff also contrasts with the broader economic picture. The [International Monetary Fund recently said AI investment was supporting global trade](https://www.theglobalvoice.com/ai-investment-gives-global-trade-a-boost-despite-tariffs-and-energy-costs/), particularly through demand for semiconductors, computing equipment and data-centre infrastructure.

AI spending continues to generate real orders and export growth, but companies supplying that boom may still have been priced for near-perfect conditions.

The market is no longer asking whether artificial intelligence will require more computing power. It is asking who will finance that capacity, how quickly it will generate profits and whether today’s semiconductor leaders can protect their margins as competition grows. Tuesday’s selloff showed that investors are no longer prepared to accept those answers on faith.