Japan’s Nikkei 225 fell 1.71% to 61,832.66 in early trading on October 23, 2026, following a technology-led selloff on Wall Street. Semiconductor-related and materials shares led the Japanese retreat as concerns about artificial intelligence spending and valuations weighed on technology stocks.
Key Takeaways
- The broader Topix also declined, losing 1.26% to 3,947.11 in early trading.
- Japan’s losses followed a 2.6% drop in the Nasdaq Composite on October 22.
- Consumer-facing shares provided pockets of strength despite the wider market decline.
Table of Contents
- Nikkei 225 declines extend beyond technology
- Wall Street losses put AI spending in focus
- Chip-related losses contrast with consumer gains
- Conclusion
Nikkei 225 declines extend beyond technology
The Japanese selloff was broad but not uniform: 120 Nikkei constituents declined while 96 advanced in the early snapshot. The Topix’s decline also showed that weakness extended beyond the headline benchmark.
The Nikkei 225 index methodology defines the benchmark as a price-weighted basket of 225 stocks from the Tokyo Stock Exchange’s Prime Market. Its percentage move therefore reflects a different measure of market performance from a simple count of rising and falling shares.
Both Japanese index readings describe early trading rather than the October 23 close. They establish the initial reaction after the U.S. session, not the final outcome for Japan’s trading day.
| Item | Details |
|---|---|
| Sumco | Down 8.95% in early trading |
| Disco | Down 7.59% in early trading |
| Mitsui Kinzoku | Down 6.65% in early trading |
| Aeon | Up 3.98% in early trading |
| Sapporo Holdings | Up 3.74% in early trading |
| Kikkoman | Up 3.69% in early trading |
Wall Street losses put AI spending in focus
U.S. stocks fell on October 22, with the Nasdaq Composite losing 2.6% and the S&P 500 declining 1.21%. Technology led the sector losses, while investors shifted toward defensive areas including consumer staples and healthcare.
Nvidia fell about 4%. Meta Platforms dropped 7% following its earnings report as investors focused on artificial intelligence spending. Tesla declined 3.1% after reporting earnings and cutting its capital spending plans for 2026.
The larger Nasdaq decline highlighted the concentration of selling in technology. Japanese semiconductor-related shares subsequently came under pressure, although the sequence of market moves does not establish how much of each stock’s loss was attributable to U.S. developments.
Chip-related losses contrast with consumer gains
Sumco was the Nikkei’s biggest percentage loser, followed by Disco and Mitsui Kinzoku. Their declines placed semiconductor-related and materials businesses at the sharp end of the retreat.
Aeon was the benchmark’s biggest percentage gainer, while Sapporo Holdings and Kikkoman also advanced. Kikkoman was on track for its highest closing level since July 2024, but that remained an intraday indication rather than a completed closing milestone.
Conclusion
The early session showed Japanese technology and materials shares absorbing the sharpest losses, while several consumer businesses advanced. The October 23 close will establish whether the initial decline persists and whether Kikkoman secures its indicated closing milestone.
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