South Korea's 3-year government bond yield has risen to 4.025%, reaching its highest level since November 1, 2023, and earlier hit 4.065%. The 10-year Korean Treasury Bond (KTB) yield also climbed to 4.542%, the highest since October 21, 2022. This surge follows a significant increase in US Treasury yields, with the 3-year US Treasury yields rising 10 basis points and 10-year yields surging 20 basis points during a recent holiday period, with the 10-year yield briefly exceeding 5.2%.
The Korean bond market's performance is heavily influenced by external factors, including the Federal Reserve's hawkish stance and the prospect of further rate hikes. Analysts like Cho Yong-gu from Shinhan Securities suggest that additional Fed hikes are more likely to occur consecutively in October rather than December, potentially totaling three hikes (75 basis points). This aggressive tightening by the Fed, combined with sustained high oil prices, creates an unfavorable environment for the bond market, even amidst a semiconductor super cycle and AI investment.
Rising oil prices, particularly Brent crude futures surpassing the psychological $100 barrier, are a major driver of inflation and a key concern for South Korea, which is heavily dependent on imported energy. Despite the Bank of Korea having preemptively raised its base rate twice, market participants are struggling to predict the upper limit of bond yields. A bond dealer at securities firm A noted that gauging the upper limit has become meaningless due to high volatility and unpredictable factors, particularly regarding oil prices. Researcher Moon Hong-chul of DB Securities highlighted Korea's increased exposure to risk due to real estate issues and the Bank of Korea's strong tightening will.
The yield curve has flattened, with short-term yields climbing to multi-year highs while longer maturities either retreated or saw comparatively smaller increases. This suggests that markets are pricing in higher near-term interest rates from the Bank of Korea, aligning with expectations that the central bank may need to keep rates higher for longer. The divergence indicates a focus on additional tightening in the short term, despite concerns about the eventual growth cost and the burden on vulnerable companies and households under high rates. There are also concerns about the Bank of Japan's potential tightening and its impact on regional capital flows and yen-funded carry trades.
