Regulatory Clampdown Drains Liquidity From South Korea's 2x Single-Stock ETFs on Samsung and SK Hynix

South Korea's push into single-stock leveraged ETFs unraveled in a matter of weeks. Trading in 2x products linked to Samsung Electronics and SK Hynix has slumped after regulators tightened retail access by tripling minimum deposit requirements and pausing new listings. From boom to bust Sixteen single-stock leveraged ETFs tied to the country's semiconductor bellwethers launched on May 27 and quickly drew heavy retail inflows. Net retail buying topped 13 trillion won (about $9 billion) over a short period. At the peak, these leveraged vehicles represented as much as 70% of the total trading value in Samsung and SK Hynix shares. The mood shifted as semiconductor prices weakened. The embedded 2x exposure magnified losses, and the KODEX SK Hynix Single Stock Leverage ETF dropped nearly 70% from its June high. Assets under management across leveraged ETFs fell from roughly $50 billion to around $26 billion, close to a 50% decline. Regulators intervene, minister issues apology By mid-July, financial authorities moved to curb the market. They imposed a temporary halt on new leveraged ETF listings and raised the minimum deposit requirement threefold to 30 million won (about $20,000), explicitly aiming to limit participation largely to professional investors. South Korea's finance minister publicly apologized, citing an insufficient review of the ETFs' risk profile before approval. Since the measures took effect, daily turnover in these products has dropped sharply. Higher capital thresholds, combined with greater investor caution after steep losses, have effectively pulled liquidity out of the segment. Why it matters beyond South Korea For investors tracking Asian tech and semiconductors, the contraction in AUM from $50 billion to $26 billion signals that a significant source of selling pressure has already been wrung out of Samsung and SK Hynix. When leveraged ETFs made up 70% of trading value in those stocks, the subsequent shrinkage and deleveraging likely intensified the underlying share declines. South Korea has also been among the region's most assertive regulators in crypto, banning initial coin offerings in 2017 and enforcing strict real-name trading rules. The rapid response to leveraged ETFs underscores a willingness to intervene quickly in any financial product—traditional or digital—that leads to outsized retail losses.