Yields on South Korean government bonds face upward pressure amid policy shifts and supply rise

Cooling Expectations for Rate Cuts, Yield Curve Turning Point Emerges

A recent report by the Bank of Korea indicates that current market perspectives on monetary easing policies are gradually shifting, with investors increasingly expecting the window for rate cuts to close. In this context, the government bond yield curve shows signs of rising.

The Bank of Korea's Financial Markets Division noted that whether the easing cycle is ending could become a focal point around the next policy turn. If macroeconomic policy effects start manifesting in the economic fundamentals, short-term yields may initially react, leading to an overall upward shift in the yield curve.

Bond Supply Surge Poses Temporary Market Volatility

The report specifically points out that the concentrated issuance of government bonds might be a significant trigger for rising rates in the short term. According to the Ministry of Finance’s plan, the third quarter will be the main period for annual bond supply concentration. At that time, the market’s absorption capacity will be tested, possibly leading to amplified yield fluctuations.

Additionally, based on the 2026 budget draft, the medium-term fiscal plan, and the year-end annual bond issuance arrangement, investors may reassess the term premium. This factor is also expected to continuously pressure mid-to-long-term bonds within the year.

Fiscal Expansion and Broker Detectorry Shift Form a "Double Squeeze"

The analysis suggests that if the expansion pace of South Korean government debt does not slow down next year, coupled with the market’s assessment of the imminent end of the easing cycle, bond yields may show a more pronounced upward trend. This implies that the bond market will face a "double squeeze" from both supply and policy.

The continuity of fiscal expansion raises the government's funding needs, and if monetary policy adjusts from stimulus mode to neutral or even tightening, it will increase the market’s sensitivity to rising rates. This combination could become the dominant force driving South Korea’s bond market operations over the coming quarters.

Foreign and Institutional Buying May Provide a Buffer

Despite facing structural upward pressure, the Bank of Korea also noted that mechanisms exist to suppress rapid yield increases. Among them, the stable demand for long-term bonds by institutional investors, such as life insurance companies, will provide some support to long-term rates.

More importantly, as South Korean government bonds are incorporated into the FTSE World Government Bond Index, foreign capital is gradually increasing its inflow into the South Korean bond market. This structural capital influx will help alleviate temporary supply and demand imbalances and provide a restraining force on medium-to-long-term yields.

Market data shows that since South Korean bonds were included in the major global bond indices, the net purchase volume by foreign investors has grown steadily, with a noticeable increase in demand for mid-to-long-term bonds, especially those with maturities over 10 years.

Bond Market May Enter an Adjustment Period, Policy Signals Need Close Monitoring

The current market is at a critical point of a tug-of-war between policy expectations and reality, which the Bank of Korea's analysis has highlighted as a cautionary point for investors. If the yield curve continues to rise, it will inevitably impact the credit environment, government financing costs, and corporate investment willingness.

The future direction of the bond market will depend mainly on three variables: first, whether the government further expands debt financing; second, how inflation and growth data influence policy expectations; and third, whether external capital flows can continuously enhance the resilience of the South Korean bond market.

Investors should closely monitor the central bank’s subsequent policy statements, changes in the Ministry of Finance’s bond issuance pace, and international index fund allocation trends to grasp potential structural inflection points in the South Korean bond market.

The market carries risks, and investment should be cautious. This article does not constitute personal investment advice and has not taken into account individual users' specific investment goals, financial situations, or needs. Users should consider whether any opinions, viewpoints, or conclusions in this article are suitable for their particular circumstances. Investing based on this is at one's own responsibility.