South Korean financial regulator Lee Chan-jin said that overheating in single-stock leveraged ETFs for Samsung Electronics and SK Hynix is creating market instability.

This warning comes as the surge in leveraged ETFs and margin-based trading concentrates activity in semiconductor stocks. This trend inflates turnover rates and increases volatility, which the regulator deems unsafe for individual investors.

During a regular press conference at the Financial Supervisory Service (FSS) headquarters in Yeouido, Seoul, Lee said that the current situation is resulting in a scenario that only benefits securities firms [1]. He said that trading turnover rates have spiked, leading to a situation where market instability and volatility have intensified [1].

Lee highlighted the risk of a "statistical illusion." This occurs when rising market capitalization reduces the perceived leverage ratio, potentially masking the actual risk level for investors [1].

Lee said the FSS is monitoring the situation closely to avoid being blinded by these statistical illusions and that the regulator views the issue as serious [1]. He said that the FSS is currently preparing investor-protection measures to mitigate these risks [1].

The FSS Governor's comments target the specific behavior of investors borrowing to invest in high-leverage products tied to the country's two largest chipmakers. By focusing on the concentration of trades, the regulator suggests that the narrow focus on semiconductor growth is creating an artificial bubble in specific financial instruments [1].

The current situation is resulting in a scenario that only benefits securities firms

The FSS's intervention signals a shift toward tighter oversight of derivative-like retail products. By identifying a 'statistical illusion,' the regulator is warning that traditional risk metrics may currently understate the danger of leveraged ETFs during a bull market, suggesting that new regulatory guardrails or disclosure requirements for securities firms may be imminent.