Yomiuri 333 closed at ¥50,190.74 in Tokyo trading on the 22nd, down ¥436.87 from the previous day, marking its first decline in 2 days. Selling spread mainly across AI-related stocks, sending the Nikkei Average sharply lower as well.
The Yomiuri Stock Price Index (Yomiuri 333) closed at ¥50,190.74 in Tokyo trading on the 22nd, down ¥436.87 from the previous day. Of its constituents, 191 stocks, or approximately 60%, declined.
The Nikkei Stock Average closed at ¥62,907.84, down ¥1,713.40.
Concerns about excessive investment in AI intensified, sending AI-related and semiconductor stocks lower. Declines in Asian equities, including South Korea's KOSPI and Taiwan, also contributed to worsening investor sentiment.
Among Yomiuri 333 constituents, Resonac Holdings posted the largest decline at 11.16%, followed by Ibiden at 9.49% and SCREEN HD at 8.83%. The biggest gainers were Trend Micro at 8.69%, BayCurrent at 3.76% and Nomura Research Institute at 3.41%.
TOPIX fell 46.23 points, or 1.14%, to 3997.50. The broader market appeared to be affected by growing caution toward AI-related stocks.