In the morning session on 1 October, the Nikkei 225 rose sharply, up ¥1,602.09 from the previous day at ¥68,355.81. Buying was concentrated in AI-related stocks.
In the morning session on 1 October, the Nikkei 225 extended its gains sharply, closing the morning session up ¥1,602.09, or 2.40%, at ¥68,355.81. The TOPIX was modestly higher at 4,113.97, with the number of advancing issues substantially exceeding the number of decliners.
Micron Technology's fiscal 2026 fourth-quarter earnings included revenue of $5.4229 billion, approximately 4.8 times the year-earlier figure and above market expectations, while GAAP earnings per share were $32.87. Buying concentrated in AI-related stocks on the back of strong AI demand.
Advantest was the top contributor to the Nikkei 225's gain, contributing ¥648.05. Tokyo Electron, SoftBank Group, Fast Retailing and Ibiden also contributed to the advance. Tokyo Marine Holdings was the top decliner.
By sector, electrical appliances and precision instruments rose, while sectors more exposed to the effects of higher interest rates, including insurance and banks, fell. Across the market, moves centered on semiconductor-related stocks supported the Nikkei 225.