South Korean Stocks Plunge Amid Tech Rout

South Korean stocks tumbled nearly 4 percent Thursday, Feb. 5, 2026, as the KOSPI fell 207.53 points to 5,163.57 amid heavy selling of large-cap tech names. Major semiconductors including Samsung Electronics and SK hynix dropped 5.8% and 6.44%, respectively, while foreigners sold about 5 trillion won and the won weakened to 1,469 per dollar. The move reflects contagion from U.S. tech valuation concerns tied to AI profitability.
Key Points
- 1Record the KOSPI fell 207.53 points (3.86%) to 5,163.57 on Feb. 5, 2026.
- 2Attribute the drop to U.S. tech selloff driven by AI profitability and valuation worries.
- 3Signal increased investor scrutiny and funding pressure for semiconductor, defense, and shipbuilding firms.
Scoring Rationale
Timely, credible market event driven by AI valuation contagion; limited analytical depth and mainly descriptive market reporting.
Sources
Public references used for this report.
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