SOUTH KOREA’S KOSPI PLUNGES OVER 8%, TRIGGERING CIRCUIT BREAKER

The KOSPI index in South Korea fell more than 8% in a single session, triggering a circuit breaker that halted trading to contain the selloff. Circuit breakers of this magnitude typically reflect a sharp and disorderly repricing of risk, with forced liquidations and margin pressure amplifying declines once price limits are breached. Exposure is concentrated in large-cap Korean equities with heavy foreign ownership and in semiconductor and export-linked names, where earnings sensitivity to global demand and currency moves is highest. Foreign outflows and won weakness would likely compound pressure on the index, feeding through to Korean sovereign and currency markets. Traders will watch the opening session after the halt for evidence of stabilization, along with Bank of Korea communications and foreign investor net flow data in the days that follow.

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