KOSPI Triggers 7th Circuit Breaker of 2026 in 8% Crash as SK Hynix Plunge and Iran War Drive Risk-Off

The Quick Take

• KOSPI triggered its 7th circuit breaker of 2026 on July 13, plunging over 8% as semiconductor stocks led a broad market selloff.
• The sharp KOSPI decline — from 8,300 to below 6,800 points intraday — paradoxically relieved concerns about National Pension Service (NPS) rebalancing selling.
• Korea's National Growth Fund selected 7 PE managers for a 1.6 trillion won ($1.1bn) fund of funds to stimulate domestic private capital markets.

Korean financial media reports a major KOSPI market event on July 13: the index triggered its 7th circuit breaker of 2026, declining over 8% during the session as semiconductor stocks — led by SK Hynix's collapse following its Nasdaq debut disappointment — drove the broader selloff. The index fell from 8,300 points to below 6,800 intraday, a drop of over 1,500 points. Multiple triggers converged: SK Hynix's 15% plunge, US-Iran geopolitical escalation driving risk-off sentiment, and pre-CPI data caution ahead of key US inflation data. This marks the most significant domestic Korean market stress event since the index's record highs near 9,100 earlier in the month.

The paradoxical positive from the KOSPI crash: the National Pension Service's previously-feared rebalancing selling pressure has eased. When KOSPI was near 9,100, the NPS's domestic equity allocation was approaching its upper limit, forcing systematic selling to rebalance toward target weights. The sharp decline has naturally reduced the NPS's domestic equity weighting, removing an estimated 10-20 trillion won of potential mechanistic selling overhang. Separately, Korea's Development Bank (KDB) selected 7 private equity managers — including Stick Investments, Dominus Equity Partners, and Korea Investment Partners — to manage 1.6 trillion won under the second cohort of the National Growth Fund, channeling government capital into domestic venture and growth companies.

Watch for KOSPI stabilization indicators: whether the 6,800 support level holds during Tuesday's session will signal whether the circuit-breaker-triggered forced selling has been absorbed. The macro variable is US CPI data: if June CPI prints below expectations, the rate hike fear that amplified Monday's semiconductor selloff would ease, supporting a KOSPI technical recovery. SK Hynix's Seoul trading vs its Nasdaq ADR premium is the specific semiconductor watch — narrowing premium in Nasdaq would remove the arbitrage selling pressure that drove Monday's domestic selloff.

Synthesized from 4 sources.