Seoul:South Korean bond yields saw significant fluctuations on September 28, 2026, with various maturities experiencing increases.

According to Yonhap News Agency, the yield on the 1-year Treasury Bond rose by 5.9 basis points to 3.726% from the previous 3.667%. The 2-year Treasury Bond yield increased by 10.4 basis points, reaching 4.078%, while the 3-year Treasury Bond yield climbed by 11.3 basis points to 4.119%.

The 10-year Treasury Bond yield had the most substantial rise, increasing by 14.7 basis points to 4.539%. Meanwhile, the 2-year Monetary Stabilization Bond yield went up by 9.1 basis points to 4.060%.

In corporate bonds, the 3-year Corporate Bond (rated AA-) yield increased by 9.9 basis points, reaching 4.788%. Additionally, the yield on the 91-day Certificate of Deposit edged up by 1.0 basis point to 3.220%.