- After a forty-day period of intense deleveraging, the South Korean stock market has rebounded, with the Korea Composite Stock Price Index (KOSPI) surging nearly 18% in a single day. Chip giants Samsung Electronics (005930:KS) and SK Hynix (000660:KS) recorded historic gains. From late June to the end of July, the market capitalization evaporated by more than 2,800 trillion won, as forced liquidation of high-leverage derivative products triggered severe liquidity negative feedback.
- The core driving force behind this round of turmoil was the single-stock leveraged exchange-traded funds (ETFs) launched in May this year. The mechanical rebalancing mechanism and brokers' forced liquidation amplified the downward pressure. According to Goldman Sachs, the scale of South Korean leveraged ETFs has dropped from a peak of $53 billion to $24 billion, but the return of retail funds means that the structural high volatility risk in the market has not been completely eliminated.
- South Korean regulators have urgently implemented intervention measures, suspending the listing of new single-stock leveraged products and significantly raising the threshold for retail participation. The market focus is gradually shifting from leverage-driven trading to fundamental validation. Institutions expect that with the support of increased chip production and expanded corporate buybacks, the market valuation reconstruction process will rely on the continued realization of profits in the AI industry chain.
Leverage Liquidation Triggers Liquidity Stampede
The mechanical rebalancing mechanism and forced liquidation of margin positions were the direct causes of the previous sharp decline in the South Korean stock market. During the continuous market downturn, single-stock leveraged ETFs had to implement mechanical sell-offs to maintain a fixed leverage ratio, combined with brokers' forced sales exceeding 2.6 trillion won, leading the market into a liquidity crunch trap. This irrational valuation-killing behavior caused the KOSPI 200 Volatility Index to reach historically extreme highs, fully demonstrating the severe impact of derivative overload on the microstructure of the spot market.
Regulatory Crackdown to Curb Speculative Frenzy
In response to extreme volatility, Seoul's regulatory authorities quickly shifted their policy focus to limiting incremental and digesting existing risks. Financial regulators not only fully suspended the listing review of new single-stock leveraged products but also raised the cash threshold for individual investors participating in such high-risk derivative transactions to 30 million won. This move aims to curb excessive leverage speculation by retail investors from the source, guide market trading preferences back to a rational track, and reduce the disturbance of single structural products to the overall market.
Industrial Data Shows Resilience in Chip Fundamentals
Despite severe turbulence in the capital layer, the basic production and export data of South Korea's semiconductor industry chain continue to maintain an expansion trend. The latest data shows that South Korea's industrial production in June increased by 6.4% month-on-month, with semiconductor output rising by 4.5% month-on-month, forming the core pillar of economic growth alongside the automotive sector. As global AI capital expenditure expands, semiconductor companies such as Samsung Electronics and SK Hynix, as core supply chains, are still expected to gain robust profit support.
Market Pricing Dominance Shifts to Profits and Buybacks
As the deleveraging process comes to an end, the core logic driving the South Korean stock market is shifting from capital game to corporate fundamentals. Institutions like Nomura predict that the market is undergoing a reset phase from leverage-driven to corporate governance-driven, with the stock buyback scale of South Korean listed companies expected to reach a historical high by 2026. If AI chip demand materializes and capital expenditure remains strong, fundamental improvement and stock buyback effects will replace leverage funds as the new anchor for reshaping the valuation system of Korean assets.
