Japan’s Nikkei Index falls amid selloff in AI-related shares
Japan’s Nikkei 225 fell 2.5% to 68,733.15 on Thursday, pressured by AI-related stocks after a Wall Street tech selloff. Advantest and Tokyo Electron dropped 9.95% and 7.44%, respectively, and Kioxia fell 13.47%. Topix edged up 0.09%.
How this was made

The 30-second read
Why it matters
Reported large same-day drops in Advantest, Tokyo Electron, and Kioxia indicate elevated near-term volatility for Japan’s AI/semiconductor complex, but without new fundamentals.
Market read
This is a same-day risk-off read-through for Japanese AI/semis exposure, driven by cross-market tech selling rather than new company disclosures.
What to watch
No company-specific catalyst is provided (no guidance, orders, or earnings), so the move may be largely technical/sentiment-driven rather than fundamental deterioration.
Background
The article frames the Nikkei decline as driven by AI-related heavyweight weakness following an overnight Wall Street tech selloff.
Ticker impact
Advantest shares fell 9.95% as the Nikkei selloff was attributed to weakness in AI-related heavyweights.
Bearish bias for the next session(s) unless AI-related selling reverses.
The article links the move directly to an overnight Wall Street tech selloff and reports a large same-day drop in Advantest.
Market effects
Semiconductor equipment and memory names show outsized sensitivity to AI-related risk appetite; could pressure regional semi ETFs and related supply-chain sentiment.
Nikkei down 2.5% with Topix flat suggests concentrated selling in AI/semis rather than broad-based liquidation.
Cross-market linkage to Wall Street tech selloff implies global AI/semis correlation remains high.
Counterpoint
Topix was slightly higher (+0.09%) and the article notes buying of cheaper stocks, suggesting some stabilization/rotation away from the hardest-hit AI names.
Key entities
- companyAdvantest
Chip-testing equipment maker; shares fell 9.95% in the session.
- companyTokyo Electron
Chip-making equipment maker; shares fell 7.44% in the session.
- companyKioxia
Memory maker; shares fell 13.47% in the session.
- indexNikkei 225
Dropped 2.5% to 68,733.15 points.


