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Nikkei 225 and KOSPI Close at Record Highs on September 10

Japan's Nikkei 225 and South Korea's KOSPI both hit record closing highs on September 18, reflecting strong performance in regional equity markets.

Summary

On September 18, 2025, Japan's Nikkei 225 closed at a record high of 45,303.43, rising by 513.05 points (+1.15%), while South Korea’s KOSPI hit a record high of 3,461.3, increasing by 47.9 points (+1.4%). These gains mark continued positive momentum in the region's stock markets.

Terms & Concepts
  • Nikkei 225: A stock market index representing the 225 largest companies listed on the Tokyo Stock Exchange, widely viewed as a benchmark for Japan’s equity market.
  • KOSPI: The Korea Composite Stock Price Index, a benchmark index tracking all common stocks traded on the Korea Exchange.
  • Record Closing High: The highest level an index or asset has ever closed at the end of a trading session.