AI Stock Selloff Driven by Fear, Not Fundamentals, Says Capital Economics

The recent selloff in high-flying, artificial intelligence-linked technology stocks is being driven by investor fear rather than a fundamental downturn, according to a note from Capital Economics. The research firm told clients Wednesday that it expects the AI-fueled market rally to resume, at least for the time being.

Sources of Investor Concern

Capital Economics' Chief Economic Adviser, John Higgins, outlined several pressures weighing on the sector. The firm noted that investor anxiety stems from a few key developments, many of which are linked to competition and financial arrangements within the industry.

Key sources of pressure include:

• Increased Chip Supply: The prospect of greater memory chip supply from Chinese heavyweights like CXMT could ease shortages of mainstream chips. This could, in turn, pressure prices and undermine revenue for major U.S. and Korean memory makers.
• China's Technological Progress: Reports of China producing its own deep ultraviolet (DUV) lithography machines have impacted shares of equipment maker ASML. Additionally, Chinese labs training advanced AI models at a lower cost have raised questions about the ability of U.S. hyperscalers to monetize their significant investments.
• Financing Arrangements: Concerns about "circular finance" have been revived by reports that Nvidia may provide approximately $250 billion in financing guarantees for its major customer, OpenAI.

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Outlook: Near-Term Rally, Long-Term Caution

Despite these headwinds, Capital Economics stated it expects the "AI train" to get back on track. The firm is maintaining a year-end 2026 forecast for the S&P 500 of 8,250, suggesting confidence in the rally's continuation.

However, the firm's longer-term outlook is more cautious. It projects the index will fall to 6,500 by the end of 2027, reasoning that what it calls "exceptionally optimistic" earnings expectations will eventually be scaled back to more realistic levels.