▲ President Lee Jae Myung speaks during a policy task briefing at Cheong Wa Dae in Seoul on July 15, 2026. (Pool Photo) (Yonhap)

SEOUL, July 15 (Yonhap) -- President Lee Jae Myung on Wednesday called for prompt complementary measures regarding recently introduced single-stock leveraged exchange-traded funds (ETFs), which have been blamed for heightened volatility in the stock market.

"Make sure to prepare complementary measures promptly and effectively," Lee said while receiving policy briefings from economy-related government ministries and agencies at the presidential office of Cheong Wa Dae.

His remarks came as single-stock leveraged ETFs, introduced in May and tracking the daily performance of two market heavyweights -- Samsung Electronics Co. and SK hynix Inc. -- have been cited as key drivers of recent volatility in the domestic stock market.

As the two companies account for roughly half of the Korea Composite Stock Price Index's (KOSPI) total market capitalization, the products have been cited as one of the factors contributing to heightened volatility in the benchmark index.

Top policymakers, including Finance Minister Koo Yun-cheol, have voiced concerns over the side effects of the ETFs and pledged to draw up complementary measures to address related problems and better protect investors.

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