Japan's soaring AI stocks push smaller firms out of Topix index

Nikkei AsiaIndependent🔒Center

Japan's Topix index, which tracks the performance of Tokyo Stock Exchange-listed equities, is expected to undergo significant changes in its composition. Smaller and mid-sized companies are being displaced due to the rapid growth in market capitalization of larger firms, particularly those involved in artificial intelligence and memory chips. Kioxia Holdings, a major memory chip manufacturer, has seen its market value increase substantially, surpassing its 2025 valuation by over tenfold at one point in 2026. This trend reflects broader structural reforms in the Japanese stock market, where the increasing dominance of large-cap stocks is reshaping the index. The changes highlight the growing influence of technology-driven sectors within Japan's financial landscape.

Bias read (Center): The article discusses economic trends and market dynamics without taking a clear ideological stance. It focuses on the structural changes in the stock market driven by corporate performance and technological advancements, rather than political decisions or debates.