Japan Stock of the Day | Kabutaro & Friends

On September 7, 2026, the most talked-about Japanese stock online was Kioxia Holdings <285A>.
Background: A surge in memory-related shares in the U.S. market on September 4 carried over to Tokyo. Micron Technology rose 6% after announcing a plan to double its high bandwidth memory (HBM) production capacity, and SanDisk, which operates plants jointly with Micron, jumped about 12%, while the Philadelphia Semiconductor Index gained 3.38%. Although U.S. stocks overall were soft as stronger-than-expected employment data raised expectations of a September rate hike, semiconductor shares were bought, led by memory names. Asian markets were also firm, with the KOSPI and Taiwan's weighted index rising, and money flowed into the semiconductor sector. The stock climbed to 58,250 yen (+6.96%) as of 10:34 a.m. and closed at 59,530 yen, up 5,070 yen (+9.31%), ranking third among gainers on the Tokyo Stock Exchange Prime Market.