South Korea's KOSPI index has entered a bear market after falling roughly 25% [1] from its peak in late June.
The downturn places thousands of leveraged retail investors at risk. Because many individual traders used borrowed funds to bet on continued growth, the sudden volatility has led to severe financial anxiety and sleepless nights.
The index closed at 7,246.79 [2] following a 5.3% drop on Wednesday [2]. This followed a previous session that saw a 4% decline [2]. The instability began earlier this month, highlighted by a massive 16% market swing that occurred over a single 24-hour period [3].
Market analysts attribute the crash to a combination of factors. The KOSPI is heavily weighted in semiconductor stocks, which have faced a sharp sell-off. Additionally, heightened geopolitical risks, including the war in Iran, have pressured the market [4].
"The retail 'ants' holding the wheel are driving dangerously," a Morningstar analyst said [3].
Government officials have expressed frustration over the gap between their targets and current reality. President Lee Jae Myung said, "We set a 5,000-point target for the KOSPI last year; now we are seeing a bear market despite that ambition" [5].
However, some officials argue the sell-off is not a reflection of the country's fundamental stability. Jeong Eun-bo, CEO of Korea Exchange, said foreign investors are not selling South Korean stocks because they have lost confidence in the country [6].
Despite the current slide, some data suggests the KOSPI remains one of the best-performing major stock indices of 2026 [1].
“The retail 'ants' holding the wheel are driving dangerously.”
The transition to a bear market underscores the vulnerability of South Korea's economy to the semiconductor cycle and geopolitical instability in the Middle East. The heavy reliance on leveraged retail trading, often referred to as 'ants,' creates a feedback loop where sharp declines trigger forced liquidations, amplifying volatility beyond what institutional trading alone would cause.
