Seoul: South Korean bond yields saw an increase across all tenors as of the morning session on August 11, 2026. The yields for various treasury bonds and corporate bonds exhibited an upward trend, reflecting changes in market conditions.

According to Yonhap News Agency, the 1-year treasury bond yield rose to 3.400% from the previous session's 3.384%, marking an increase of 1.6 basis points. The 2-year treasury bond yield increased by 4.3 basis points, reaching 3.644% compared to the previous 3.601%. Similarly, the 3-year treasury bond yield climbed to 3.815%, up from 3.778%, which is a rise of 3.7 basis points.

The 10-year treasury bond yield experienced a more significant increase, advancing by 5.8 basis points to stand at 4.297%, up from 4.239% in the previous session. In the monetary stabilization bond (MSB) segment, the 2-year MSB yield also went up by 4.3 basis points, moving from 3.650% to 3.693%.

Corporate bonds were not left out of the yield increase. The 3-year corporate bond with an AA- rating saw its yield rise by 3.4 basis points, from 4.476% to 4.510%. This movement in yields indicates a shift in investor sentiment and market dynamics on the morning of August 11, 2026.