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AI Chip Selloff Shakes Confidence in the Boom

AI chip stocks tumble as Chinese competition and financing pressures test confidence in the sector. The immediate question is whether the selloff reflects a temporary valuation reset or a more lasting threat to earnings growth.

Oct 13, 2026
3 min lesetid
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South Korea’s KOSPI closed 5.5% lower on Tuesday, October 13, as memory-chip stocks led a sharp retreat. Samsung Electronics fell 7.4%, while SK Hynix lost about 10%, extending pressure on companies exposed to the AI investment boom.

That followed a 2.7% drop in the Philadelphia Semiconductor Index on Monday. For investors, the central issue is how much future profit is already built into chipmakers’ share prices, and whether competition and financing costs are changing those expectations.

Chinese Competition Puts Margins in Focus

Reports of technical progress at Chinese memory-chip maker CXMT added to concerns about competition. Investors are assessing whether new capacity and improved products could put pressure on prices and margins at established suppliers.

A stronger competitive challenge would not require AI demand to collapse. Chipmakers could sell more units while earning less on each sale, particularly if supply expands faster than customers’ needs.

The commercial scale and timing of that challenge remain important. Its effect on earnings would depend on production volumes, customer adoption, and the prices manufacturers can sustain.

Financing Costs Raise the Stakes for AI Spending

At a conference in Singapore on Monday, Broadcom CEO Hock Tan said capital would become the company’s biggest constraint as AI development continues. His comments brought the funding demands of the AI buildout into focus.

Higher borrowing costs can make data-center projects harder to justify. If customers delay construction or reduce spending, chip orders could come under pressure even while demand for AI services continues to grow.

For equity markets, that creates two separate risks: weaker expected earnings and a lower valuation placed on those earnings. Share prices can fall because investors demand a larger return for taking risk, even without an immediate deterioration in sales.

What Could Stabilize Chip Stocks?

ASML is scheduled to report quarterly results on October 14, followed by TSMC on October 15. Their guidance could offer fresh evidence on semiconductor investment and demand.

Resilient orders and stable margins could help restore confidence. Conversely, signs of delayed projects or weaker pricing could deepen doubts about the earnings assumptions supporting the sector.

The breadth of any rebound would also matter. Gains across a wider group of chipmakers would offer more evidence of stabilization than a brief recovery concentrated in a few leading stocks.

Ultimately, the next sustained move will depend on whether incoming results change expectations for future profits. AI adoption can continue to expand while investors reassess how much they are willing to pay for the companies supplying it.

Warning! This material is not intended as investment advice. Past performance data does not guarantee future returns. Investing in foreign currencies may affect your returns due to their fluctuations. Any transaction in securities may result in both profits and losses. The assumptions and expectations set forth in this material are only estimates that may not be accurate and may change depending on current economic conditions. These statements do not guarantee future returns.