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Today Markets Analysis: The South Korean won weakened to around KRW 1,353 per US dollar, retreating from a near two-year high as expectations for tighter Federal Reserve policy strengthened. A firmer dollar, elevated US Treasury yields and surging oil prices are creating a difficult combination for a currency heavily exposed to energy import costs.
Fed Expectations Keep the Dollar Firm
Markets are pricing in roughly a 92% probability of a 25-basis-point Federal Reserve rate hike this week, increasing demand for the US dollar and putting pressure on Asian currencies.
The US 10-year Treasury yield remains close to 5%, maintaining a significant yield advantage for dollar assets and making it more difficult for the won to extend its recent gains.
For the Korean currency, the issue is therefore not simply domestic fundamentals. The global interest-rate environment is becoming increasingly important.
If US yields remain elevated or the Federal Reserve signals that further tightening could be required, the dollar could retain an advantage against the won.
Oil Above $100 Creates a Second Problem
The won is also facing pressure from a sharp increase in energy prices.
Crude oil has moved above $100 a barrel as escalating Middle East tensions raise concerns about disruptions to regional supply. A vessel was recently struck in the Strait of Hormuz, while Saudi Arabia has kept its East-West crude pipeline shut following drone attacks.
For South Korea, which relies heavily on imported energy, higher oil prices represent more than a global commodity story.
More expensive crude increases the country’s import bill and can worsen the trade balance, while simultaneously increasing domestic inflation pressure.
That combination can be particularly uncomfortable for the won.
Foreign Investors Add to the Pressure
Foreign investors have also been reducing exposure to South Korean equities.
Net foreign selling of approximately KRW 3.2 trillion in local stocks has added another source of pressure on the currency.
When overseas investors sell Korean equities and repatriate funds, demand for foreign currency can increase while demand for the won falls.
However, there is an important counterweight.
Semiconductor Exporters Provide Some Support
South Korea’s major semiconductor exporters continue to generate significant foreign-currency revenues.
Their regular US dollar sales can provide a natural source of dollar supply in the domestic market, helping to limit the won’s losses even when broader capital flows are negative.
This is an important distinction for traders.
The won is under pressure, but it is not facing a one-directional selling environment. Exporter dollar conversion can act as a stabilising force, particularly when the currency approaches weaker levels.
Currency Hedger View
From a corporate FX perspective, the current environment creates a difficult mix for Korean importers.
A weaker won increases the local-currency cost of USD-denominated energy, commodities, technology and other imports. If oil remains above $100, companies with significant dollar liabilities could face additional margin pressure.
Exporters are in a different position. Companies receiving substantial dollar revenues may benefit from converting those receipts into weaker won, providing a partial natural hedge.
For businesses with future USD payments, however, the combination of a potentially stronger dollar and volatile energy prices makes forward planning increasingly important.
The key risk is that the current oil shock becomes persistent enough to keep inflation elevated while US interest rates remain restrictive.
What Traders Are Watching Next
The next major drivers for USD/KRW include:
- Federal Reserve rate decision and guidance
- US Treasury yields
- Crude oil prices
- Middle East supply disruptions
- Foreign equity flows into South Korea
- Semiconductor export revenues
- South Korean inflation and trade data
A sustained move above KRW 1,353 per dollar would indicate that the recent recovery in the won is losing momentum.
Conversely, if oil prices retreat and US yields fall after the Fed decision, the won could regain some of the ground lost during the recent dollar rebound.
Today Markets View
The latest move in the won highlights how quickly the currency’s outlook can change when US monetary policy and energy prices move in the same direction.
The near-term pressure is clear: higher US yields support the dollar, while oil above $100 increases South Korea’s import costs.
At the same time, strong semiconductor-related dollar inflows provide an important buffer and could prevent a disorderly decline in the won.
The critical question is whether the current combination of Fed tightening expectations, elevated oil prices and foreign equity outflows persists.
If it does, the won could remain vulnerable even if South Korea’s export sector continues to perform strongly.
Bottom Line
The South Korean won has weakened to around KRW 1,353 per US dollar as rising Fed tightening expectations, elevated Treasury yields, surging oil prices and foreign equity selling weigh on the currency.
For now, semiconductor exporters’ dollar sales are helping to limit the downside, but a sustained oil shock combined with a stronger US dollar would leave the won facing a more difficult environment.
Analysis by Louis Roche, Analyst, Today Markets
Market analysis contributed by Currency Hedger, an Octalas Group division specialising in foreign exchange, currency risk and hedging.
