South Korean won closes above 1,500 per dollar for first time since 2009

The South Korean won weakened sharply against the dollar, closing above 1,500 won for the first time since March 2009 as of the late-afternoon session in Seoul. The won finished at 1,501 per dollar at 3:30 pm, up 17.9 won from the previous session, marking a weekly close above the 1,500 threshold for the first time in 17 years.

Trading kicked off at about 1,505 per dollar, but the session saw the pair briefly dip to around 1,495 early on after verbal intervention from foreign exchange authorities. The level nonetheless held, and the market ended the day near the 1,500 mark.

The move came as markets weighed a potential U.S. interest-rate hike against geopolitical tensions in the Middle East. Reports that the Federal Reserve might still raise rates helped fuel dollar strength, while escalating U.S.-Iran tensions and a strike on a major Iranian gas field heightened fears of tighter oil supplies. The dollar index, which tracks the greenback against major peers, rose above 100.

Analysts warned that the pair could remain volatile in the near term, depending on the trajectory of the war in the Middle East and movements in oil prices. Park Sang-hyun, a researcher at iM Investment & Securities, cautioned that if the conflict persists into April, the won could weaken to around 1,550 per dollar.

Still, some observers expect the authorities to keep the 1,500 level in check through verbal interventions and policy tools. Market participants have pointed to policy measures such as Korea’s “National Pension Service new framework” and the so-called “Three laws to stabilize the exchange rate” as possible constraints on upside moves. Min Kyung-won, a researcher at Woori Bank, said that when the 1,500 level is breached, exporters’ dollar selling and the government’s verbal interventions are likely to cap further rises.

For international readers, the episode matters because Korea is a major exporter of technology and components, including semiconductors and consumer electronics. A weaker won can boost the competitiveness of Korean exports on a price basis but also raises import costs and input prices for local manufacturers. The spillover effects touch global supply chains, U.S. technology companies, and energy markets, given Korea’s role in advanced manufacturing and the sensitivity of oil prices to Middle East tensions.

The episode also illustrates how U.S. monetary policy, global energy markets, and geopolitical risk interact to shape currency movements in highly trade-dependent economies. If the won remains fragile, it could influence Korea’s corporate profits, inflation dynamics, and investment sentiment, with implications for U.S. investors and firms linked to Korean supply chains or that rely on Korean components.