Korean Equities Collapse 7% as Middle East Crisis Triggers Foreign Exodus
The KOSPI recorded its steepest decline in 19 months amid escalating geopolitical tensions and a sharp selloff by foreign investors.
South Korea’s benchmark KOSPI index plunged 7.24% on March 3, closing at 5,791.91, as foreign investors dumped a net 5.1 trillion won ($3.5 billion) in equities following the escalation of U.S.-Israeli strikes on Iran.
The collapse marked the worst single-day performance since August 2024, wiping out gains accumulated during a rally that had pushed the index to a record 6,347 just days earlier. Samsung shares plunged after reports revealed mass production at the company’s Texas plant had been pushed back to 2027, while SK Hynix fell almost 12%. The selloff intensified after markets reopened following a public holiday, exposing Korean equities to accumulated risk-off sentiment that had built across the weekend.
Foreign Capital Flight Accelerates
Foreign and institutional investors led the daily sell-off, dumping a net 5.1 trillion won and 891.1 billion won, respectively, while retail investors went bargain hunting and snapped up a net 5.8 trillion won. The scale of the exodus reflects a broader pattern: foreign funds had already sold a net 6.8 trillion won ($4.7 billion) worth of KOSPI stocks during the previous session, according to Korea Exchange data, as investors locked in profits from a rally that had lifted the index nearly 1,000 points since early February.
The magnitude of foreign selling underscores a structural shift in capital flows. Securities industry observers pointed to the correction in U.S. technology stocks and concerns over the burden of short-term rapid gains as the background for the large-scale foreign selling. The KOSPI had surged nearly 1,000 points from the 5,000 level to the 6,300 level over the past month, creating conditions ripe for profit-taking even before geopolitical risks intensified.
Won Weakness Compounds Equity Pressure
The won also weakened, compounding equity pressure as foreign investors trimmed positions. The USD/KRW exchange rate rose to 1,455.35 on March 2, up 1.07% from the previous session, reflecting capital flight and broader dollar strength amid geopolitical uncertainty. The currency’s decline follows months of structural pressure: the Korean won is expected to remain under pressure throughout 2026 as it confronts forces reshaping global financial hegemony, according to The Korea Herald.
The AI boom, confidence in the U.S. economy and trust in the U.S. financial system have led to stronger interest among foreign investors, especially in Asia, in U.S. assets, said Louis Kuijs, managing director at S&P Global Ratings. This dynamic has created persistent outflows from Korean markets even as the country’s semiconductor exports surge amid the AI boom.
The KOSPI had been Asia’s best-performing index in 2026, surging more than 146% over the past year on expectations that President Lee Jae Myung’s corporate reforms would eliminate the longstanding “Korea discount” and boost valuations. The index had briefly crossed 6,300 for the first time before the selloff began.
Middle East Crisis Amplifies Regional Vulnerability
The decline followed coordinated U.S.-Israeli strikes on Iranian targets and growing threats to shipping through the Strait of Hormuz, driving oil prices sharply higher and raising concerns over inflation and energy costs for import-dependent economies such as South Korea. Finance Minister Koo Yun-cheol convened an emergency meeting, warning that escalating military tensions could heighten volatility in global financial and energy markets. He underscored South Korea’s reliance on Middle Eastern energy and raised concerns about potential instability in the Strait of Hormuz.
Asian markets broadly declined, but analysts say Asian markets, more vulnerable to volatility than U.S. markets, are bearing the full brunt of escalating geopolitical risks, as evidenced by Korean stocks turning sharply lower, according to Seoul Economic Daily. Japan’s Nikkei index dropped as much as 2.7% intraday before closing down 1.35%, Taiwan’s TAIEX fell 0.9%, and Hong Kong’s Hang Seng Index declined more than 2%.
| Market | Daily Change | Close Level |
|---|---|---|
| KOSPI (South Korea) | -7.24% | 5,791.91 |
| Nikkei 225 (Japan) | -3.06% | 56,279.1 |
| Hang Seng (Hong Kong) | -1.25% | — |
| ASX 200 (Australia) | -1.34% | 9,077.3 |
China Slowdown Fears Add to Pressure
Beyond immediate geopolitical triggers, Korean equities face headwinds from China’s structural deceleration. China’s GDP growth is forecast to slow to 4.5% in 2026, with exports expected to decelerate, leading to a much narrower growth contribution from net exports, according to UBS. Export growth is expected to slow to around 3.0% in 2026 from 5.1% in 2025, reported Citigroup.
For Korea, which depends heavily on Chinese demand for semiconductors and intermediate goods, this slowdown compounds vulnerability. China has relied more on trade, exporting more and importing less, due to weak domestic demand amid the property bust. Its 2025 trade surplus exceeded $1 trillion, reflecting an imbalanced growth model that limits absorption of Korean exports.
Fed Policy Uncertainty Clouds Outlook
Adding to investor caution, Federal Reserve policy remains in flux. The market sees low odds of the Fed choosing to cut at its March meeting. The FOMC maintained the benchmark federal funds rate at 3.5% to 3.75% following three rate cuts in 2025, according to J.P. Morgan. Uncertainty about the economic outlook remains elevated. The Committee is attentive to the risks to both sides of its dual mandate, the Federal Reserve stated.
Market expectations are for two 25-basis-point cuts. The data will provide more clarity in the second half of the year as to which side of the stagflation dilemma requires more attention, according to Stanford Institute for Economic Policy Research. This uncertainty leaves Korean markets exposed to volatile cross-border flows as global investors reassess risk allocations.
- Foreign investors dumped 5.1 trillion won in a single session, accelerating a selloff that began with profit-taking after a 1,000-point rally
- The won’s structural weakness—driven by capital outflows to U.S. tech assets—compounds equity vulnerability and limits policy response options
- Korean markets now face a triple threat: Middle East supply shocks, China demand deceleration, and Fed policy uncertainty
- Defense stocks surged over 20% as investors rotated into beneficiaries of heightened geopolitical risk
What to Watch
The trajectory of the Strait of Hormuz crisis will determine whether the selloff becomes a prolonged risk-off cycle or a transient shock. If tanker traffic remains disrupted, energy import costs will pressure Korean corporate margins and consumer spending. Monitor Bank of Korea intervention signals: further won depreciation may force the central bank to choose between defending the currency and supporting growth.
Foreign positioning data will be critical. If institutional outflows persist beyond 10 trillion won over multiple sessions, the KOSPI risks testing the 5,500 level. Conversely, stabilization of U.S. tech stocks—particularly semiconductor names—could trigger tactical re-entry by foreign funds seeking to capture Korea’s valuation discount.
China’s March policy signals during the National People’s Congress will clarify whether Beijing plans meaningful stimulus to boost domestic consumption, which would support Korean export demand. Finally, watch for potential government intervention: Seoul may deploy stabilization funds or accelerate corporate governance reforms to restore confidence in the “Korea discount” revaluation thesis.