South Korea’s trillion-dollar pension fund pauses foreign exchange hedging as won strengthens

South Korea’s National Pension Service, the world’s third-largest public pension fund with roughly $1 trillion in assets under management, has stopped its foreign exchange hedging operations. The move comes as the Korean won has strengthened significantly against the dollar, reducing the fund’s perceived need to protect against currency risk on its massive overseas portfolio.

What the NPS actually changed

The pension fund’s hedging strategy works on a trigger system. When the won-dollar exchange rate dropped from above 1,450 to below the mid-1,300s, the NPS effectively waived its hedging requirements. In plain terms: the won got strong enough that the fund no longer felt compelled to sell dollars or enter forward contracts to offset currency exposure on its international investments.

The NPS had recently bumped its strategic hedging ratio from a prior cap of 10% up to 15%. That ratio represents the share of overseas assets the fund actively hedges against currency swings. In April 2026, the fund formalized a restructured hedging policy designed to give it more flexibility in how and when it executes that 15% baseline.

To execute its hedging, the NPS typically uses dollar forwards or swaps arranged through the Bank of Korea. These instruments effectively inject dollars into the onshore FX market, which tends to support the won during periods of weakness. When hedging pauses, that dollar supply dries up, which can actually increase net dollar demand from the NPS’s overseas investment flows.

Why this matters beyond Seoul

The NPS isn’t just any pension fund. With approximately $1 trillion in total assets and around $530 billion in foreign holdings, its currency operations can move markets. The fund has access to $65 billion in extended currency swap lines with the Bank of Korea, facilities that run through the end of 2026.

Market sources indicate that hedging activity would likely resume if the won-dollar rate spikes back above 1,550. That level appears to function as something of an upper trigger for the NPS, a point at which the fund would re-engage its hedging toolkit to protect returns on foreign holdings.

The bigger picture for institutional FX management

The NPS’s approach reflects a broader trend among large institutional investors: dynamic, trigger-based currency management rather than static hedging ratios. Instead of mechanically hedging a fixed percentage of overseas assets regardless of market conditions, the fund adjusts its posture based on where exchange rates sit relative to internal thresholds.

The extension of BOK swap lines through 2026 and ongoing discussions about long-term hedging modifications suggest that Korean policymakers are keenly aware of this dynamic. These aren’t ad hoc decisions. They’re part of an evolving institutional architecture designed to manage the currency implications of one of the world’s largest pools of internationally deployed capital.

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