Asian Tech Stocks Face Volatility as AI Valuations Undergo Investor Scrutiny

Asian technology stocks are poised for a volatile quarter as investors re-evaluate the sector's lofty valuations, weighing the artificial intelligence boom against concerns over profitability and massive capital expenditures. While the AI theme continues to drive markets, a more selective approach is fueling sharp swings in key regional indices and individual stocks.

Divergent Markets Signal Caution

Recent trading activity highlighted this growing investor caution. South Korea's KOSPI index slumped more than 3% in Monday trading, while Japan's Nikkei 225 fell over 1%, both dragged down by heavyweight technology firms. In contrast, Taiwan's benchmark rose 1%, and Hong Kong's Hang Seng index gained about 0.5%.

The divergence follows a period of outsized gains and was amplified by recent preliminary earnings from Samsung Electronics, which failed to fully reassure investors that memory-chip profitability can justify the enormous capital spending required for AI infrastructure. Investors are increasingly questioning whether the billions being committed by hyperscalers can generate sufficient long-term returns.

Semiconductors Remain a Preferred Theme

Despite elevated valuations, semiconductors remain a preferred theme for analysts due to a strong earnings upgrade cycle. In a recent report, Bernstein noted its continued preference for AI infrastructure leaders, advising clients to focus on companies with durable earnings momentum rather than chasing expensive AI-related trades.

Key companies favored by the brokerage include:

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• Taiwan Semiconductor Manufacturing Co. (TSMC)
• SK Hynix Inc.
• Samsung Electronics Co. Ltd.
• MediaTek Inc.

This year, semiconductor stocks have outperformed every other technology subsector in the region, with TSMC, SK Hynix, and Samsung ranking among Asia's best-performing mega-cap stocks, according to the report.

Regional AI Ecosystems in Focus

Analysts continue to favor the AI ecosystems in Taiwan and South Korea. In South Korea, AI memory chips are expected to be a primary earnings driver. SK Hynix benefits from its leadership in high-bandwidth memory (HBM), while Samsung is also seen as a major beneficiary of AI investment. Underscoring strong investor appetite, a recent U.S. ADR offering by SK Hynix attracted demand more than seven times the shares available, as reported by Reuters.

For Japan, Bernstein remains constructive on Apple's supply chain and component makers exposed to AI smartphones. However, it maintains an Underperform rating on memory firm Kioxia amid challenging market dynamics. The firm remains more selective in Japan and China, preferring companies with stronger earnings visibility and more reasonable valuations.