South Korea 10Y Yield Climbs to Highest Since 2023

South Korea’s 10-year government bond yield climbed to around 4.33% in early June, its highest since November 2023, as strong AI investment and surging semiconductor demand fuel faster growth and stickier inflation, reinforcing expectations of Bank of Korea tightening. Swaps markets are pricing in at least three rate hikes this year, lifting the policy rate toward 3.25% from 2.5%. At the same time, South Korea’s annual inflation rate accelerated to 3.1% in May, the highest reading since March 2024, while core inflation held at 2.5%. This, coupled with a weaker won, has added to concerns over persistent price pressures and imported inflation risks. Meanwhile, fiscal spending uncertainty and the prospect of additional bond issuance are also putting upward pressure on yields, even as authorities have moved to reduce supply and step up market monitoring to curb volatility.

South Korea’s 10-year government bond yield rose to around 4.16% in late May, moving back toward its highest level since November 2023, after the central bank held rates steady but signaled a more hawkish tilt. The Bank of Korea raised its inflation outlook for this year to 2.7%, up from 2.2% in February, citing higher energy costs following disruptions linked to the Iran conflict. Meanwhile, policymakers also lifted the 2026 growth forecast to 2.6% from 2%, reflecting a stronger-than-expected Q1 GDP growth, driven by booming global demand tied to artificial intelligence powering semiconductors. Against this backdrop, the central bank’s dot plot for policy rates six months ahead showed a clear hawkish shift, with two members projecting rates as high as 3.25% in risk scenarios. Most projections clustered around 3%, pointing to expectations of roughly two additional rate hikes over the coming half year.

South Korea’s 10-year government bond yield climbed to around 4.27% in mid-May, reaching its highest level since November 2023, driven by rising expectations of aggressive Bank of Korea rate hikes. The repricing reflects mounting inflation pressures, with headline inflation rising to 2.6% in April, the highest since July 2024, amid an oil shock linked to the Iran conflict. Stronger growth prospects, supported by an AI-driven semiconductor upcycle, have reinforced the hawkish shift, with Q1 GDP expanding 1.7% quarter-on-quarter, the fastest in five years. This combination has prompted major brokerages to turn more hawkish on the policy outlook, with most now expecting rate hikes this year or next, reversing earlier views that rates would remain on hold. Attention now turned to the upcoming policy meeting later this month for further guidance, the first since the departure of Shin Sung Hwan, a noted dove on the board, leaving the policy panel perceived as more hawkish.