South Korean ETF Sees "Reverse Surge": SK Hynix Plunges 8%, 2x Leveraged Long ETF Soars 50%

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A 2x leveraged ETF tracking SK Hynix's stock price soared 50% against the trend, reaching a record high, even though the underlying stock plunged nearly 8% in a single day. This rare price dislocation has spotlighted liquidity risks in South Korea's single-stock leveraged ETF market.

The KIM ACE SK Hynix single-stock leveraged ETF closed at 30,000 won on Monday, setting a record high, whereas by design, it should have theoretically dropped around 15% that day, as the fund tracks SK Hynix with 2x leverage on daily moves. Other SK Hynix-tracking leveraged ETFs closed lower within the expected range. Korea Investment Management Co., which manages the ETF, attributed the anomaly to a pricing system failure from the liquidity provider.

In a text statement, the fund company said, "Near market close, liquidity providers are no longer obligated to submit quotes, causing the bid-ask spread to widen dramatically. During the sharp price fluctuations, investors’ buy orders set at market price were executed, resulting in a surge in the ETF price." The company also stated it would use this event as an opportunity to comprehensively review the liquidity provider quoting system and make every effort to prevent similar issues from occurring.

Liquidity Vacuum Amid Market Crash

This price dislocation occurred on a volatile trading day in the Korean stock market. The benchmark Kospi index plunged nearly 9% intraday, triggering a 20-minute circuit breaker soon after opening on the Korea Exchange; the small-cap Kosdaq market later halted trading as well. The trigger was a massive investor retreat from AI-related trades, hitting memory chip giants like Samsung Electronics and SK Hynix hardest.

Jung In Yun, CEO of Fibonacci Asset Management, said, "Such price dislocations are rare, but not unprecedented. ETFs usually rely on market makers to keep prices consistent with underlying holdings, but this mechanism can weaken during the closing auction phase—especially in niche products with limited volume."

New Issuances, Hidden Risks from Rebalancing Mechanism

KIM ACE SK Hynix ETF is one of over ten single-stock leveraged ETFs tracking chip stocks that launched in South Korea last month.

According to a prior report from Goldman Sachs’ sales team, these products require daily rebalancing to maintain their leverage ratio, meaning the funds must buy when prices rise and sell when prices fall. Goldman describes this process as a volatility "accelerator."

Leveraged exchange-traded products, using derivatives and swap contracts, let investors seek outsized gains on indices, stocks, bonds, or commodities—but can also amplify price swings in heavily targeted stocks. Issuers often need to buy or sell assets rapidly to keep the fund’s leverage ratio in line. In recent bouts of volatility, rebalancing flows from these products have been seen as a factor aggravating market turbulence.

High-Price Buyers Face Potential 50% Loss

For investors who bought near the close at elevated prices, the risks are particularly severe.

Jung In Yun warned, "The greater concern is for those who bought the ETF near the close. Once liquidity providers resume quotes at Tuesday's open, the fund is expected to return to fair value, and buyers who traded around 30,000 won may face almost 50% losses."

This event is yet another reminder that buying niche leveraged products at market price during thinly traded closing phases can present extreme risks, and highlights the need for improved product design and market-making mechanisms in Korea's single-stock leveraged ETF segment for both regulators and fund providers.

Risk DisclaimerThe market carries risk; invest cautiously. This article does not constitute personal investment advice, nor does it take into account the particular investment objectives, financial situations, or needs of individual users. Users should consider whether any opinions, views, or conclusions in this article are suitable for their circumstances. Investing accordingly is at your own risk. ```