Nikkei 225 index plummets by 4%, AI prospects uncertain putting pressure on technology stocks.

Due to the Japan's Nikkei 225 index falling by 4.1% at one point, Kaiju led the technology stocks to plunge. Kaiju's stock price plummeted by 16% at one point, causing the market value of this storage chip manufacturer to shrink by half compared to its peak in June. Stocks related to chips such as Screen, Lasertec, and Sumco all fell by more than 12%. The TOPIX index fell by 2.3%.