South Korea built a product designed to pull retail investors back into domestic markets. Six weeks later, the central bank is warning that the same product might be destabilizing those markets.
The Bank of Korea has issued a formal warning over single-stock leveraged ETFs linked to Samsung Electronics and SK Hynix, flagging that the products are amplifying volatility, deepening sector concentration, and creating lopsided trading flows that favor one-directional bets.
From zero to $9B in weeks
These are 2x daily leveraged products, meaning they aim to deliver twice the daily return of a single underlying stock. In English: if Samsung rises 3% on Tuesday, the ETF targets a 6% gain. If Samsung falls 3%, the ETF falls 6.
The ETFs were approved in April 2026, and the market’s appetite was immediate. Assets under management grew from roughly $3B at launch to approximately 14 trillion won, around $9.1B, by mid-June 2026.
