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Korean Treasury Yields Mixed as KOSPI Surges 4.6%
Commercial Services · Financial Publishing/Services · yonhap_finance · 2026-09-07
South Korean government bond yields showed mixed results as a 4.6% rally in the KOSPI index shifted investor preference toward riskier assets.
What Happened
Market Overview: South Korean government bond yields ended in a mixed state on the 7th, heavily influenced by a sharp 4.6% rally in the KOSPI index. While the market initially opened with a bullish tone for bonds, the afternoon surge in stock prices led to a reversal in short-term yield trends.
Yield Movements: The 3-year Treasury yield rose by 1.6bp to 3.900%, while the 10-year yield climbed 2.5bp to 4.385%. In contrast, ultra-long-term bonds such as the 20-year and 30-year maturities saw slight declines, indicating that some demand for long-term safe assets remained intact.
Stock Market Impact: The significant jump in the KOSPI index triggered a strong preference for risk assets, which weighed on the demand for government bonds. Analysts noted that the rapid expansion of stock gains throughout the day directly impacted the yield curve, particularly at the shorter end.
Foreign Investment: Foreign investors were active in the futures market, net buying 15,015 contracts of 3-year Treasury futures and 2,635 contracts of 10-year Treasury futures. Market participants are now closely monitoring the ongoing rotation between equity and fixed-income assets following the day's volatility.