The Diverging Paths of US and Korean Bond Yields

Recent interest rate adjustments by both the US Federal Reserve (FED) and the Bank of Korea (BOK) have set the stage for intriguing divergences in bond market performance. while both central banks have lowered rates – the FED by a full percentage point and the BOK by 0.75 percentage points – the resulting impact on bond yields has been markedly different.

Specifically, while the ISHARES 20+ Year Treasury Bond ETF (TLT), a popular choice for domestic investors seeking exposure to long-dated US treasuries, yielded a negative return of -2.57% over the past year, Korean 30-year Treasury bond ETFs delivered an remarkable average annual return of 20%.this stark contrast is particularly noteworthy when compared to the US Nasdaq index’s 8.43% return during the same period.

This divergence underscores a critical point: long-term bond yields are heavily influenced by economic outlook.While interest rate cuts typically boost bond prices, long-term bonds are more sensitive to broader economic expectations. The relative strength of the US economy has supported US long-term interest rates, while concerns about the Korean economic outlook have driven down long-term interest rates in Korea.

Data illustrates this point: Over the past year, the yield on the 30-year US Treasury bond saw minimal change (-0.02 percentage points), and the 10-year yield even rose slightly (0.156 percentage points) despite the rate cuts. In contrast, the Korean 30-year Treasury bond yield plummeted by 0.739 percentage points, and the 10-year yield fell by 0.608 percentage points.

Long-Term Korean Government Bonds: A Rising Star

Korean long-term government bonds have garnered notable attention as 2023,coinciding with the aggressive interest rate hiking cycle. As of March 2025, the Korean ETF market boasts 143 listed bond ETFs, with 91 focused on domestic bonds. These can be further segmented by maturity: 30-year, 10-year, and short-term bonds.

The six ETFs specializing in 30-year maturities,including prominent names like KODEX Treasury Bond 30 Years Active and Rise KIS Treasury Bond 30 Years ENHANCED,have achieved an average annual return of 20%. Simultaneously occurring, the eight 10-year Treasury ETFs, such as KIWOOM KIWOOM Treasury Bonds and SOL Treasury bonds 10 Years, have delivered an average annual return of 6.34%. This performance is particularly compelling considering the KOSPI’s 4.06% decline over the same period.

Short-Term Bond ETFs: Liquidity and flexibility

Short-term bond ETFs offer a compelling alternative for managing liquid assets, providing greater flexibility than conventional bank deposits. Unlike fixed-term deposits, which penalize early withdrawals, short-term bond ETFs allow investors to access their funds without forfeiting accrued interest. For example, an investor selling a bond ETF with a 3% annual yield after six months can realize a 1.5% profit.

these ETFs primarily consist of bonds with maturities of less than one year, minimizing the impact of market interest rate fluctuations.Tho, it’s crucial to remember that, unlike bank deposits which are insured up to ₩50 million, bond ETFs are not principal-guaranteed products.

The Impact of Economic Stimulus on Bond Markets

Recent discussions surrounding economic stimulus measures, projected to reach approximately ₩20 trillion, are influencing market dynamics. Such stimulus typically necessitates the issuance of additional government bonds to secure funding, which, in turn, can increase the supply of government bonds and potentially drive up interest rates. Investors considering domestic bonds should carefully monitor the size and timing of these stimulus packages.

Strategic Alternatives in a Volatile Market

Given the persistent anxieties in the stock market,domestic bond ETFs present a prudent alternative to unnecessary stock sales,particularly as they eliminate exchange rate risk. Short-term government bond ETFs or high-quality corporate bond ETFs can be strategically employed for managing liquid assets, offering a balance of stability and potential returns.