South Korean financial authorities are examining measures to curb risks associated with single-stock leveraged exchange-traded funds (ETFs) that track Samsung Electronics Co., Ltd. and SK Hynix Inc., as the artificial intelligence (AI) boom fuels a surge in related products.
Regulatory Focus on Market Stability
Lee Chan-jin, head of the Financial Supervisory Service (FSS), stated at a press conference on Monday that regulators are considering enhanced monitoring of trading patterns and evaluating other market stabilization measures to limit the potential fallout from the extreme volatility of these ETFs. He noted the FSS is collaborating with the Financial Services Commission and relevant departments of the Korea Exchange.
Lee emphasized that the vast majority of investors in these products are middle-class and salaried individuals. "During periods of market volatility, this could deliver a significant shock to the household sector," he said. This consideration highlights the hidden risks behind the wealth effects generated by the AI frenzy.
AI Boom Fuels ETF Expansion
As a key pillar in the global AI supply chain, South Korea has seen the stocks of Samsung Electronics and SK Hynix, central to AI chip production, soar continuously. This surge has driven the rapid expansion of ETFs tracking these companies. These leveraged ETFs use instruments like derivatives and swap contracts to provide leveraged exposure to the underlying securities, offering investors the chance for returns far exceeding the gains of the actual assets.
Rising Concerns Over Amplified Volatility
While such ETFs can magnify investment returns, concerns are mounting that they could exacerbate stock market fluctuations. The South Korean stock market has been among the world's top performers this year, driven largely by these two tech behemoths, but it is also known for its frequent volatility.
Explosive Growth in Assets
When launched in late May, the 16 ETFs tracking these two chipmakers held combined assets of around $3 billion. Lee indicated on Monday that the asset size of these products has since ballooned to approximately 14 trillion won (about $9.1 billion).
"These are high-risk products, and about 92% of the holders appear to be retail investors," Lee stated. "Despite consumer risk warnings issued by regulators, the heated trading has not cooled." He added that these leveraged ETFs have not yet had a noticeable impact on the Korean won's exchange rate.
Broader Context of Leverage Concerns
This scrutiny comes amid heightened official concern over leveraged stock trading in South Korea, with margin loan balances hitting a 20-year high and a tenfold surge in new accounts opened by minors. Earlier this month, Finance Minister Koo Yun-cheol joined forces with the central bank and financial regulators to issue urgent warnings specifically highlighting stock market leverage risks.
Financial officials have also noted that the increase in stock margin loans could pose a potential risk to the economy, pledging close monitoring of the trend and efforts to protect investors.
Data Highlights Leverage Trends
FSS data shows that as of Q1 2026, margin loan balances at South Korea's top ten securities firms approached 36 trillion won, a near 20-year high and almost double the figure from a year earlier. Investors aged 50 and above accounted for 62.3% of the total loans at these firms. The loan balance for those over 60 surged from about 3 trillion won to 8.02 trillion won within a year, roughly 2.7 times higher.
Retail participation is also climbing. Data indicates that in Q1 2026, the number of new accounts opened by individuals under 18 increased nearly tenfold compared to the same period last year. A mindset has emerged among some Korean retail investors characterized by a willingness to risk total loss rather than miss out on the current bull market.
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