October 30, the Nikkei 225 Index closed lower 2.12%, South Korea's KOSPI Index closed lower 3.53%;SK Hynix fell approximately 7%, Samsung Electronics fell approximately 3%。
October 22, the Nikkei 225 index fell 2.65%, closing at 62907.84 points, its lowest closing level since July 30. Analysts said that AI valuation concerns and geopolitical risks increased market pressure.
October 15, the Nikkei 225 Index closed down 4.90%, South Korea’s KOSPI closed down 7.56%, falling more than 9%intraday and triggering the circuit breaker for the tenth time this year. The decline narrowed somewhat after South Korea’s financial regulators held an emergency meeting in the afternoon.
According to Bitget market data, the Nikkei 225 opened down 0.05%, while the South Korean KOSPI opened down 1.15%。SK SK hynix fell 2%, and Samsung Electronics fell 1%。
South Korea's KOSPI index September 30 closed down 0.48%, at 6838.04 points; it fell 19.3%cumulatively in the third quarter, the largest quarterly decline since 2020 the first quarter of that year. The Nikkei 225 index rose 1.94%。
At midday on September 24, the Nikkei 225 Index rose 1.33%, while several CPU- and chip-related stocks strengthened. The report attributed the market catalyst to news about Meta’s AI device.