Taiwan’s five‑year bond yield climbed to the highest level in almost two decades as a disappointing 20‑year sale last week and growing expectations for a central bank interest‑rate hike sapped demand for the securities. The benchmark yield rose to its peak since 2008, reflecting traders’ positioning for tighter monetary policy.

The weak auction of longer‑dated debt signaled fragile investor appetite, while swaps pricing increasingly points to a policy tightening by the central bank. Market participants noted that the combination of supply pressure and shifting rate expectations created a sharp repricing across the curve.

Analysts said the move underscores how sensitive Taiwan’s bond market has become to global yield trends and domestic policy signals. With inflation data due later this month, further volatility is likely as investors reassess the outlook for borrowing costs.