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Market Impact: 0.35

South Korea’s ex-President Yoon Suk Yeol found guilty of insurrection

Elections & Domestic PoliticsLegal & LitigationRegulation & LegislationGeopolitics & WarInfrastructure & Defense

A Seoul court found former South Korean President Yoon Suk Yeol guilty of masterminding an insurrection and sentenced him to life imprisonment for his December 3, 2024 declaration of martial law after sending the military to the National Assembly. The court concluded Yoon intended to paralyse the legislature for a significant period, while rejecting prosecutors' assertion he sought a long-term dictatorship; prosecutors had sought the death penalty. Yoon, 65, was impeached and removed from office and continues to deny wrongdoing, claiming presidential authority. Market participants should monitor potential political instability, policy uncertainty and near-term volatility in South Korean assets as legal and domestic political fallout unfolds.

Analysis

Market structure: Immediate winners are defense and homeland-security contractors (domestic names such as Hanwha Aerospace 012450.KS and LIG Nex1 079550.KS) and global safe havens; losers are domestically-focused Korean banks, consumer discretionary and small-cap domestic plays (expect KOSPI pressure). I expect an initial risk-off move: KOSPI -5% to -12% and USD/KRW +3% to +7% within 1–4 weeks as foreign flows retrench and local liquidity tightens, pressuring credit-sensitive sectors. Risk assessment: Tail scenarios include (1) sudden cross-border military escalation (low-probability, high-impact) and (2) capital-control or regulatory responses that restrict foreign exits — either would spike Korea sovereign CDS >200bps and force large asset re-pricing. Short-term (days–weeks) volatility will dominate; medium-term (3–12 months) outcome hinges on political sequencing (appeals, snap election within 60–120 days) and policy stability; long-term (>1 year) depends on whether governance normalizes and defense spending structurally rises. Trade implications: Tactical moves: hedge Korea beta immediately with short EWY (iShares MSCI South Korea ETF) or short KOSPI futures and buy USD/KRW forwards; size initial hedge 1–3% AUM, scale to 4–6% if KOSPI declines >7% or USD/KRW >+5%. Use options: buy 1–3 month EWY 7–12% OTM put spreads (defined risk) and purchase 6–12 month call exposure on 012450.KS and 079550.KS (2–3% combined) to play higher defense budgets. Rotate out of domestic banks/consumer names (reduce Korean bank exposure such as KB Financial 105560.KS by 30–50% from current weighting) and keep export champions (005930.KS Samsung Electronics, 000660.KS SK Hynix) relatively overweight vs domestic financials. Contrarian angle: Markets may overshoot downside; historical parallels (Park 2017) show a 3–9 month recovery after political clearing — if appeals process begins and a snap election is scheduled within 60–90 days, consider re-entering Korea equities on KOSPI -15% levels. Monitor three triggers to reverse hedges: (A) Korean government announces credible transitional roadmap within 14 days, (B) USD/KRW reverses >2% intraday, (C) sovereign CDS tightens >50bps from peak; if met, trim short positions by 50% within 3 trading days.