SK Hynix's sharp decline triggered the KOSPI circuit breaker, 7000level collapse.
On the KOSPI index, during intraday trading on 2026Year 7Month 13Day, the circuit breaker was triggered due to a drop of about 8%. SK Hynix saw a decline of more than 8% along with the activation of the sell-side car, falling below 200won, and as losses widened, the index gave up the 7,000level. KB Securities noted that the reevaluation of the SK Hynix ADR stock has begun, and reports indicate a downward adjustment in performance outlook due to the expiration of ADR-related materials.
On the KOSPI index, during intraday trading on 2026Year 7Month 13Day, a drop of about 8% triggered the circuit breaker. For investors, the temporary suspension of trading is key.
In early trading, SK Hynix dropped by more than 8% with the activation of the sell-side car, pushing its stock price below 200won. This shock has led to selling pressures, especially among large-cap stocks.
As the decline expanded in the afternoon, the KOSPI recorded a decline of nearly 9%, resulting in the breakdown of the 7,000level. The index's broadened losses have been accompanied by increased intraday volatility.
SK hynix reported the largest daily decline in its history. Major stocks by market capitalization fell simultaneously and led the market.
KB Securities diagnosed that a re-evaluation of SK hynix ADR is starting over whether its stock price is expensive or cheap compared to its performance. At the same time, it was reported that several asset managers have consecutively launched leveraged ETFs.
Some analyses stated that the performance outlook was downgraded due to the disappearance of materials related to ADRs. This impact was suggested as one of the factors that triggered the sharp drop in stock prices.
The exchange confirmed the activation records of the circuit breaker and sell-side guard. Regular trading will resume from the next trading day.
In this situation, disclosures, trading halt history, and supply/demand flow for the next trading day have become important. There are voices recommending investors to check related disclosures.