Group 1 - The Nikkei 225 index closed down by 1.05%, reaching 50,491.87 points [1] - The KOSPI index in South Korea closed up by 1.75%, reaching 4,099.19 points [1]

Market Overview - Both Japanese and South Korean stock markets opened lower and continued to decline throughout the day, with the Nikkei 225 index closing down 3.22%, marking the largest single-day drop since April, at 48702.98 points [1] - The KOSPI index in South Korea fell by 3.32%, closing at 3953.62 points [1] Nikkei 225 Details - The Nikkei 225 index opened at 49812.95, reached a high of 49971.55, and a low of 48661.52, closing at 48702.98, down 1620.93 points [2] - The previous close was 50323.91, with a 52-week high of 52636.87 and a low of 30792.74 [2] KOSPI Index Details - The KOSPI index opened at 4044.47, with a high of 4072.41 and a low of 3953.26, closing at 3953.62, down 135.62 points [3] - The previous close was 4089.25, with a 52-week high of 4226.75 and a low of 2284.72 [3]

Core Points - The Nikkei 225 index in Japan closed up by 2.17%, reaching 51,307.65 points [1] - The KOSPI index in South Korea increased by 1.76%, closing at 4,081.15 points [1] Market Performance - Japan's Nikkei 225 index achieved a significant rise, marking a historical high [1] - South Korea's KOSPI index also saw a notable increase, contributing to positive market sentiment in the region [1]

Group 1 - The Nikkei 225 index increased by 1.22%, closing at 44,372.5 points [1] - The South Korean Composite Index rose by 0.81%, ending at 3,341.38 points [1]