South Korea’s gross domestic product grew by 3.6% year on year in the first quarter.
This was above the market expectation of 2.7% for the same period.
The stronger-than-expected GDP growth fundamentally alters our short-term view on South Korean monetary policy. We had been pricing in a potential interest rate cut by the third quarter, but this robust data makes that scenario less likely. The Bank of Korea will now have to reconsider its path given this clear economic strength.
We are now looking at interest rate swaps that price out any BOK rate cuts for the remainder of 2026. After the BOK held its policy rate at 3.50% for all of 2025 to stamp out inflation, this growth surprise suggests they have no reason to ease policy yet. We see value in positions that bet on rates staying higher for longer than previously anticipated.
For currency traders, this reinforces a bullish stance on the South Korean Won, especially against currencies where central banks are more dovish. With the USD/KRW pair already down to around 1,310 this year from over 1,350, we expect call options on the Won to become more popular. This data widens the policy divergence between a firm BOK and a Federal Reserve that is still signaling a potential summer rate cut.
On the equity front, the initial reaction for the KOSPI index could be positive due to strong economic fundamentals. However, traders should be cautious, as the prospect of delayed rate cuts could cap valuation multiples, especially for growth-sensitive tech stocks. We will be watching KOSPI 200 futures for signs of a breakout, but also considering put options to hedge against any rate-related jitters.
