South Korea’s consumer price inflation rose to 2.6% year-on-year in April, up from 2.2% in March. This matched market consensus but was below an estimate of 2.8%, mainly due to a larger-than-expected fall in food prices.
April inflation was the highest in 21 months, with government support measures limiting price rises. These measures included food vouchers, a petrol price cap, and frozen utility charges.
Core Inflation And Energy Pressures
Inflation excluding food and energy stayed at 2.2% for the second month. Energy prices recorded the largest increase, driven by oil and petroleum.
Oil and petroleum prices rose 21.9% year-on-year, adding 0.84 percentage points to overall inflation. The fuel price cap helped keep energy price increases lower than in other major economies.
Within services, housing rental prices increased 1.0% and have risen gradually since January 2024, when they were down 0.2%. Rental changes have been slow, linked to the Jeonse rental system.
Headline inflation is expected to move higher despite government measures, reaching about 3% as early as June. Policy attention remains on inflation expectations, with gradual rate increases projected, including a total of 50 basis points in the second half of 2026, and a July hike seen as more likely than a May hike.
Implications For Rates And The Korean Won
With South Korean inflation hitting a 21-month high of 2.6% in April, we see the Bank of Korea (BoK) shifting its focus towards future rate hikes. This is happening even as government fuel caps and food vouchers are keeping the numbers from climbing faster, especially with WTI crude oil recently pushing past $95 a barrel. The core inflation rate holding steady at 2.2% suggests underlying pressures are still manageable for now.
The market is now pricing in a more hawkish central bank, a clear change from the steady policy we saw through most of 2025. We believe rate hikes are coming in the second half of the year, likely starting in July rather than this month. This gives us a window to position for a stronger Korean Won against currencies with more dovish central banks, such as the Japanese Yen, where the BoJ has kept its policy rate near 0.10%.
We anticipate a total of 50 basis points in hikes before year-end, which should increase demand for the Won. Traders should consider entering pay-fixed interest rate swaps to benefit from the expected rise in the BoK’s base rate from its current 3.50%. This view is supported by the gradual increase in housing rental prices, which have been slowly climbing since January.
Despite the clear direction, the government’s active intervention to control prices presents a key risk that could delay the BoK’s timeline. A good strategy would be to use options to manage this uncertainty, such as buying KRW call options. This approach allows us to profit from a strengthening Won while limiting our potential downside if inflation unexpectedly cools and the hikes are postponed.
