Behind the Weak Won: Capital Flow Misalignment Outweighs Trade Surplus
Miles Bennett
Korea posted a $138 bn trade surplus in H1 2026, yet the won remains one of Asia's weakest major currencies. This means → the problem is not earning dollars — it is that no one is converting them back into won.
Exports are booming — so why is the won still weak?
Korea's H1 2026 exports, GDP growth, and trade surplus all came in strong, yet the won stayed soft against the dollar.
This means → dollars earned on the trade account are being heavily offset by financial-account outflows — export proceeds never make it back into won.
In plain terms = the money is earned, but it sits in offshore dollar accounts instead of becoming won demand.
Where is the money going? Three pipelines are draining won demand
Foreign selling: after booking large gains on KOSPI, foreign investors net-sold roughly ₩158 tn from early 2026 through early July.
Corporate dollar-hoarding: Korean exporters are keeping proceeds offshore or in FX accounts — onshore foreign-currency deposits rose from $74 bn in May 2024 to $97.4 bn in May 2026.
Retail outflows: Korean retail investors keep buying US equities — $633 mn net in June alone, with total US stock holdings at roughly $195 bn, up about 19% from end-2025.
This reflects a won that lacks not dollar income, but the willingness to convert those dollars back.
Any near-term catalysts to give the won a breather?
A major chipmaker's US listing may trigger partial repatriation of IPO proceeds; the conversion window is expected from mid-July into August.
Korean corporates typically pay taxes in August; the March 2026 tax season drove onshore FX deposits down by roughly $13 bn in a single month — August could produce a similar conversion pulse.
Morgan Stanley's framework is cautious: without a broader dollar decline, USD/KRW likely stays in the 1,490–1,560 range; a break below roughly 1,485 is needed to open bigger downside.
What would it take for the won to truly strengthen?
Morgan Stanley sees the won moving from "weak-patch repair" to "trend appreciation" only when two signals appear together: corporate FX deposits falling steadily + foreign selling pressure easing.
On rates, the Bank of Korea signaled a hike as early as July; Morgan Stanley expects two hikes in 2026 and two more in 2027, with a terminal rate of 3.5%.
This means → if the Fed holds rates this year, the Korea-US policy gap narrows and the carry drag on the won eases — but rates alone are not enough.
KOSPI doubled — what supports 9,000?
KOSPI rose 101% in H1 2026; chip stocks surged over 200% and accounted for 79% of the index's market-cap gain.
In plain terms = virtually the entire rally was carried by Samsung Electronics and SK Hynix alone.
Retail investors net-bought roughly ₩99 tn in domestic equities in H1, with leveraged-ETF demand rising sharply — the rally increasingly depends on domestic retail liquidity, raising volatility risk.
Why are foreigners selling even as they stay bullish?
Foreign selling is not a bearish call on Korea — it is passive rebalancing (when one market rallies too much inside a portfolio, managers must trim to reduce concentration).
Korea's weight in the MSCI Emerging Markets index jumped from 13.3% in December 2025 to 23.1% by May 2026; global portfolios are passively overweight and must sell.
This means → if the rally broadens into industrials, financials, defense, and healthcare, semiconductor weight gets diluted and foreign selling pressure can meaningfully ease; if chips keep carrying the index alone, the selling will not stop.
Falsification points: whether AI capex slows, whether memory prices hold, whether capital-market reforms land, and whether retail leverage stays stable — a reversal in any one could amplify KOSPI volatility and push the won back into a weak cycle.
Content is for reference only, not financial advice.