Seoul's sovereign FX pool absorbed roughly $20 billion of the dollars SK Hynix repatriated from its July Wall Street listing, steadying the won and topping up reserves that heavy intervention had drained.
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South Korea's FX fund absorbs $20B from SK Hynix ADR windfall
South Korea's Foreign Exchange Stabilization Fund bought about $20 billion in dollars that SK Hynix sold after its record $26.5 billion US listing, absorbing repatriated proceeds while replenishing reserves drained by months of won defense.
The purchases were made through over-the-counter transactions as the memory-chip maker repatriated dollars raised on Wall Street, a source with direct knowledge of the matter told Reuters. The fund, managed by the finance ministry and the Bank of Korea, declined to comment, as did SK Hynix.
The dollar-won rate, which hovered near a 17-year low of 1,550 in late June, has gained more than 12 percent in two months. The won ranked among Asia's worst-performing currencies in 2025 before staging a dramatic recovery.
The intervention differs from the dollar-selling operations the BOK has historically run to defend the currency, and it serves a dual purpose: smoothing FX volatility while rebuilding the fund's greenback holdings, which market participants and macroeconomists speculate have fallen sharply after months of aggressive intervention.
SK Hynix's July share sale was the largest US offering by a foreign issuer, and the chipmaker said it planned to use the proceeds to finance new factories and equipment to meet surging AI chip demand. The listing was more than seven times oversubscribed, Reuters reported in July.
The scale of the dollar absorption shows how cross-border capital flows from the semiconductor boom are reshaping South Korea's FX management. Rather than selling reserves to prop up the won, as the BOK did repeatedly through 2025, authorities this time bought dollars from a domestic exporter's offshore listing — a reversal that both cushions the currency's appreciation and restocks a sovereign pool whose dollar share has eroded.
The Foreign Exchange Stabilization Fund stood at 135.1 trillion won ($98.7 billion) under an operational plan confirmed by the National Assembly last year. The government's budget proposal, unveiled Tuesday, projects the fund at around 106.5 trillion won, a decline that reflects the drawdown from defending the won.
The won's 12 percent rebound in two months has eased the pressure that drove the BOK to conduct a rare dollar-selling intervention on July 30, according to Reuters. With the currency recovering and the fund absorbing SK Hynix's windfall, the intervention pattern may point to a shift toward managing appreciation rather than fighting depreciation.
For SK Hynix, the listing locks in dollar funding for AI-driven capacity expansion at a time when memory-chip demand is surging. For South Korea, the episode shows how a single corporate capital-raising can move the country's FX reserves and currency policy — a dynamic that could recur as other Korean chipmakers and tech exporters weigh US listings.
Whether the fund continues to absorb repatriated proceeds depends on the pace of the won's gains and the trajectory of AI-related capital flows. If the currency keeps appreciating, authorities may face pressure to slow dollar inflows; if it stalls, the reserve buffer built from SK Hynix's listing gives the BOK more room to defend the won without further depleting its stockpile.
This article is for informational purposes only and does not constitute investment advice.
