Japanese and South Korean stock markets experienced significant declines on November 5th, with the Nikkei 225 index dropping 2.50% to close at 50,212.27 points. The index had fallen over 4% during the day, briefly dipping below the 50,000-point threshold. Meanwhile, South Korea's KOSPI index fell 2.85% to 4,004.42 points, after an intraday drop exceeding 6%. The sharp declines were driven by substantial foreign investor activity, as data revealed net sales of 2.52 trillion won in South Korean KOSPI stocks, marking the largest single-day net selling since August 2021. The sell-off reflects heightened market volatility and investor caution in the region.