KOSPI Index in South Korea Plummets Over 8%, Triggering Circuit Breaker
The Korea Exchange (KRX) triggered a level 1 circuit breaker, halting trading for 20 minutes after the KOSPI index fell more than 8%. This decline was led by major stocks such as Samsung Electronics and SK Hynix, which dropped nearly 10%.
The sharp drop occurred amid concerns over the sustainability of AI spending and geopolitical risks in the Middle East, with high retail leverage and profit-taking exacerbating selling pressure, causing the KOSPI to significantly retreat from recent highs.
Mechanically, global investor risk aversion has driven funds out of high-valuation tech stocks like South Korean semiconductors; under event-driven circumstances, capital has shifted from leveraged positions in emerging markets to safe-haven assets, benefiting defensive sectors and non-Korean asset holders, while putting pressure on highly leveraged retail investors and South Korean export companies reliant on foreign capital.
Source: Public Information
ABAB AI Insight
Korean stock markets have previously triggered circuit breakers due to global risk events, such as during Middle Eastern conflicts in August 2024 and March 2026. The KOSPI had previously reached record highs due to strong demand for AI chips, but high valuations and leverage amplified volatility. This correction reflects profit-taking by foreign capital and a cooling of the AI narrative following earnings reports from companies like Broadcom.
In terms of capital flow, institutional and retail funds have concentrated on profiting from major South Korean semiconductor stocks, briefly cooling selling pressure through the circuit breaker mechanism, motivated by a reallocation to more stable assets while testing the market's confidence in the sustainability of AI spending.
Similar to the tech stock corrections in 2022 and the global sell-off in 2024, the current South Korean market is in a transition phase from an AI-driven bull market to a revaluation and risk aversion adjustment phase.
Essentially, this reflects capital concentration, with global risk aversion channeling funds from high-leverage emerging tech markets to core safe-haven assets, mechanically accelerating valuation returns through circuit breakers and sell-offs, reshaping the pricing power of the Asia-Pacific semiconductor supply chain.
ABAB News · Cognitive Law
The AI bull market may seem perpetual, but the structural inevitability of circuit breaker corrections lies in the risks associated with leverage. Selling high-valuation tech to burn leverage and selling safe-haven assets for security, the ultimate sell-off is the pricing power cooled by the circuit breaker. The market is not lacking in upward movement; it lacks sustained confidence support. The winners will reshape the regional market structure through capital rotation.