South Korea’s benchmark KOSPI index suffered its worst daily selloff on record after the Iran war began on February 28, plunging over 18% in two trading days before rebounding. Despite severe volatility and energy disruption fears, forward earnings estimates have risen while foreign investors shed billions, revealing a discounted market.
Wartime Energy Panic and the KOSPI Rollercoaster
The outbreak of the Iran conflict on February 28 sent immediate shockwaves through global markets, turning South Korea into Asia’s most volatile stock exchange. In the immediate two trading days following the onset of the war, the benchmark KOSPI stock index dropped over 18%, registering its worst-ever daily selloff, according to Reuters. The market clawed back nearly 10% the very next day, but three weeks later, wild price swings continue to plague traders.
Much of that vulnerability stems from the country’s severe energy dependence. Iran’s closure of the Strait of Hormuz choked off a critical maritime corridor through which roughly 20% of the world’s energy travels. Korea International Trade Association data shows that South Korea sourced 70% of its crude and 30% of its gas from the Middle East in 2025, all moving through that narrow passage. The nation’s overall energy mix remains heavily tied to fossil fuels at 37% oil, 22% coal, and 20% natural gas, as tracked by the International Energy Agency.
In response to the mounting supply threat, South Korean President Lee Jae Myung called for a nationwide energy-saving campaign, asking the top 50 oil-consuming businesses to cut their usage. A prolonged disruption risks pushing input costs higher, stoking inflation, and squeezing corporate profit margins across the board.
Rising Earnings Estimates Against Falling Forward Multiples
Despite the wartime anxieties, underlying corporate profitability tells a remarkably resilient story. South Korea has experienced the sharpest rise in consensus earnings-per-share estimates among major Asian markets over the past year, and those figures continued to climb even after the Middle East conflict broke out.
Technology leads the charge, driven largely by semiconductor demand amid the ongoing artificial intelligence boom. Utilities, financials, energy, and defense exporters have also contributed meaningfully to the upward revisions.
Even with a 40% rally in Korean equities since late October, the KOSPI’s 12-month forward price-to-earnings multiple actually declined by 28% based on FactSet consensus estimates. Earnings forecasts jumped 80% while share prices lagged behind, creating a market that looks cheaper on forward earnings despite its strong run.
Foreign Capital Outflows and Market Misconceptions
Market observers frequently label Korean stocks a crowded trade, but cross-border capital flows indicate otherwise. Foreign investors sold a net $36 billion of Korean equities between November and March 25, with much of that selling originating well before the latest conflict began. Over the longer horizon, foreigners have cumulatively sold $48 billion of Korean equities since January 2020, leaving international portfolios underweight.
Another persistent myth frames Korean equities as a pure proxy for semiconductor giants like Samsung Electronics and SK Hynix. While AI hardware players command attention, South Korean industry holds established global prowess in defense equipment, shipbuilding, heavy engineering, base metals, automobiles, cosmetics, retail, e-commerce, and entertainment. FactSet consensus forecasts project earnings growth exceeding 20% over the next two years for the majority of these sectors.
Dietary Habits and Metabolic Health in Korean Adults
Beyond macroeconomic market volatility, public health research highlights distinct physiological patterns within the South Korean population. A recent large-scale study examined data from 36,274 Korean adults (15,509 men and 20,765 women), establishing a direct link between breakfast skipping and hyperuricemia.
The study found that overall hyperuricemia prevalence stood at 11.5% among participants, hitting 18.20% in men compared to 6.54% in women. Adults who routinely skipped breakfast faced a 22% higher risk of hyperuricemia than regular breakfast eaters, even after adjusting for age, sex, socioeconomic factors, physical activity, and comorbidities. Researchers identified an inverse relationship where both hyperuricemia prevalence and serum uric acid levels dropped significantly when participants ate breakfast at least 3 to 4 times per week, pointing to habitual meal timing as a modifiable factor in managing uric acid metabolism.
