South Korean retail investors have faced severe losses after a sharp downturn in shares of key tech giants Samsung Electronics and SK Hynix, especially those holding single-stock leveraged ETFs. These exchange-traded funds, designed to amplify daily movements, soared during the AI-driven semiconductor rally but recently plunged. Since launching on May 27, investors have poured approximately 14 trillion won ($9.4 billion) into these leveraged products, with individual retail investors bearing the brunt of the downturn, exacerbating volatility in Korea’s technology sector.

The KODEX SK Hynix Single Stock Leverage ETF, a popular instrument among traders, has declined around 70% from its June peak and is about 50% below its initial value. Online forums have reflected investor frustration and distress following dramatic single-day losses, revealing the risks tied to highly leveraged bets. Despite the setback, analysts maintain a cautiously positive long-term outlook for semiconductor companies, though the recent reversal exposes the elevated risk in retail trading culture driven by concentrated positions and borrowed money.

Regulators have responded by introducing stricter rules to rein in speculative trading in leveraged products. From July, investors must post a minimum of 30 million won in cash to trade these ETFs, a significant increase from the previous effective threshold of 3 million won. Industry experts like Peter Kim from KB Financial Group stress that leveraged ETFs are being used more for speculative purposes than long-term investing, warning that persistent losses and volatility could drag the broader market into a prolonged slump.

Market professionals also caution that the semiconductor sector, heavily crowded by both retail and institutional investors, might see further declines. Thomas J. Hayes of Great Hill Capital labeled the chip trade “overcrowded” globally, predicting that upcoming earnings guidance could lead major buyers to reduce capital expenditures. This potential pullback, combined with leveraged positions unwinding, signals a challenging period ahead for South Korea’s semiconductor stocks and leveraged trading landscape.