The US 10-year Treasury yield climbed to around 4.8% as investors priced renewed inflation risk, heavy government debt supply and the possibility that the Federal Reserve could keep policy tighter for longer. The move put the benchmark yield near its highest level since late 2023 and formed part of a broader selloff across major government-bond markets.
The pressure is not confined to the United States. Korean government-bond yields also rose on September 2, with the 10-year Korean Treasury closing at 4.418%. Higher long-term yields can feed into financing costs for companies, households and governments even when their central banks do not immediately change short-term policy rates. They also make bonds more competitive with riskier assets.
Why Korea feels a US yield shock
For Korea, the important question is whether the move proves temporary or becomes a sustained repricing of global borrowing costs. A persistent increase would tighten financial conditions and could weigh on investment, housing finance and equity valuations. Markets will be watching inflation data, debt issuance and central-bank signals for evidence that the current rate shock is easing or becoming entrenched.