Japan’s Nikkei 225 fell sharply on Tuesday as a global selloff in artificial intelligence-related stocks intensified and geopolitical tensions added to investor caution. The decline reflected growing doubts about the sustainability of AI-driven valuations, alongside concerns over energy markets and the outlook for global growth.
The Nikkei closed down 1.82% at 67,777.52, extending its losses to a fourth consecutive session. The broader Topix index edged up 0.14% to 4,110.67, showing that the pressure was concentrated in particular sectors rather than across the entire Japanese market.
Chipmakers Bear the Brunt
Technology shares led the decline after weakness in US semiconductor stocks spread across Asian markets. Memory-chip producer Kioxia Holdings dropped 13.28%, semiconductor equipment maker Kokusai Electric lost 9.53%, and materials supplier Sumco fell 8.64%.
The selloff extended beyond Japan. South Korea’s Kospi plunged, with Samsung Electronics and SK Hynix among the major losers, while European semiconductor shares also came under pressure.
Investors are increasingly questioning whether the massive spending on AI infrastructure will generate returns quickly enough to justify the sector’s high expectations. Growing competition in chip manufacturing and concerns about potential overinvestment have added to the uncertainty.
Geopolitical Risks Add to Uncertainty
Geopolitical tensions have further weakened risk appetite. Russian strikes on Ukrainian energy infrastructure have raised fresh questions about energy security, despite claims of an energy ceasefire. Wider conflict in the Middle East has also kept investors alert to possible disruptions in global energy supplies.
Energy prices matter for Japan, a major importer of fuel. Sustained increases can raise costs for manufacturers and households, put pressure on corporate margins and complicate the Bank of Japan’s efforts to manage inflation.
Japan’s wholesale prices rose 6.8% year over year in September, adding another factor for investors to consider as they assess inflation and the outlook for monetary policy.
Markets Reassess the AI Trade
The latest declines suggest investors are becoming more selective about companies linked to AI. The sector has benefited from years of investment in chips, data centres and computing infrastructure, but higher financing costs and uncertainty about future returns are challenging the most optimistic assumptions.
Attention is now turning to corporate earnings for evidence that investment is translating into sustainable profits. Results from major US banks and upcoming company updates may help determine whether the current selloff remains concentrated in technology or spreads more broadly.
For Japan, the near-term outlook will depend on the direction of global chip stocks, energy prices and geopolitical developments. Until uncertainty eases, highly valued technology companies may remain vulnerable to further swings in investor sentiment.
Sources
- The Wall Street Journal — Nikkei Falls 2.0% Amid Geopolitical Tensions
- Reuters — Japan’s Nikkei Ends Lower as AI Stocks Tumble, Geopolitical Risks Weigh
- Reuters — ‘Brutal Session’ for Chip Stocks Shows AI Trade Is Turning
- Reuters — S&P 500 Futures Muted as Investors Await Big Bank Earnings; Chip Weakness Weighs
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