The Japanese and South Korean stock markets experienced sharp declines on the 15th due to factors such as heightened risk concerns about artificial intelligence investment. Among them, the Nikkei Index of Japan's Tokyo stock market closed down sharply on the 15th, closing at 64425.95 points, down 3318.34 points from the previous trading day, or 4.90%, the biggest one-day decline since March this year. On the previous trading day, the three major stock indexes of the US New York stock market fell across the board. According to the data, the increase in the US consumer price index in September was higher than market expectations. Affected by this, market expectations for the Fed's interest rate hike have heated up, investors' risk appetite has declined, and stocks related to artificial intelligence and semiconductors have been sold off. The stock prices of Japanese semiconductor equipment companies such as Edwin Test and Tokyo Electronics fell, dragging down the Nikkei stock index.

The Japanese and South Korean stock markets experienced sharp declines on the 15th due to factors such as heightened risk concerns about artificial intelligence investment. Among them, the Nikkei Index of Japan's Tokyo stock market closed down sharply on the 15th, closing at 64425.95 points, down 3318.34 points from the previous trading day, or 4.90%, the biggest one-day decline since March this year. On the previous trading day, the three major stock indexes of the US New York stock market fell across the board. According to the data, the increase in the US consumer price index in September was higher than market expectations. Affected by this, market expectations for the Fed's interest rate hike have heated up, investors' risk appetite has declined, and stocks related to artificial intelligence and semiconductors have been sold off. The stock prices of Japanese semiconductor equipment companies such as Edwin Test and Tokyo Electronics fell, dragging down the Nikkei stock index.