Summary of Key Points
The South Korean stock market has experienced extreme fluctuations due to leveraged ETFs: A two-fold leveraged ETF based on SK Hynix once rose by 10 times in half a year, but recently plummeted by 70%, triggering multiple circuit breakers. The "daily rebalancing" mechanism of leveraged ETFs acts as a magnifier of price volatility, while retail investors tend to increase their holdings as prices fall. The market's concentration of technology stocks and the dominance of retail investors exacerbate risk. Regulators have suspended the issuance of new leveraged ETFs, but there are concerns about potential chain reactions. These fluctuations in the South Korean stock market have also impacted the A-share semiconductor sector.
Detailed Analysis
1. Leveraged ETFs: The Double-Edged Sword
Leveraged ETFs are not ordinary funds; their core principle is to maintain a fixed multiple of the performance of their underlying assets daily. For example, a two-fold leveraged ETF aims to double the daily price movement of its target stock. To achieve this, it adjusts its portfolio daily:
- If the target stock rises, the ETF buys more shares to maintain the two-fold leverage;
- If the target stock falls, the ETF sells shares to prevent the leverage from getting out of control.
This can have a snowball effect—increasing purchases during gains and sales during losses, accelerating price movements. For instance, if SK Hynix drops by 37%, a two-fold leveraged ETF could fall by 70% due to significant selling. However, many investors mistakenly believe that holding such ETFs for a long period will result in double returns. In reality, the longer the investment period, the greater the potential gap between actual returns and the expected two-fold gain, with the risk of losses. For example, even a small increase of 0.29% in SK Hynix could lead to a 13% drop for the ETF due to volatility.
2. Why Do Retail Investors Become Obsessed with Leveraged ETFs Despite Losses?
Despite significant declines, retail investors continue to buy into leveraged ETFs, pushing their trading volume to new highs (over HK$1 billion daily). There are three main reasons:
- Hope for a rebound: They believe that prices will reverse after such a sharp drop and hope to profit quickly.
- Past profits: The memory of previous 10-fold gains leads them to think they can recover their losses or even make more money.
- Misunderstanding of risk: They mistakenly assume that leveraged ETFs are similar to regular funds and can be held for the long term.
However, leveraged ETFs are not designed for long-term holding by retail investors; issuers explicitly advise against holding them for more than one day, as returns can deviate significantly from expectations, potentially resulting in total losses within a single day.
3. The South Korean Stock Market's Vulnerability to Leverage
The problem with leveraged ETFs is particularly severe in the South Korean market due to its unique structure:
- Dominance of Technology Stocks: Samsung Electronics and SK Hynix account for nearly 54% of the market value, and most leveraged ETFs are heavily invested in these two stocks. Their declines can be amplified by ETF trading activities.
- Retail Investor Dominance: Retail investors account for over 50% of trading volume, and their speculative behavior (buying on gains and selling on losses) exacerbates price volatility.
- External Vulnerability: The South Korean market is highly dependent on global semiconductor trends and U.S. dollar liquidity, making it prone to large fluctuations.
4. Regulatory Actions and Possible Counterproductive Effects
In response to the recent turmoil, South Korean regulators have taken action:
- Suspending the issuance of new leveraged ETFs targeting individual stocks.
- Increasing the minimum trading unit from 1 share to 20 shares, making it more difficult for retail investors to participate.
However, these measures have caused further panic, as some fear that regulatory measures may force forced liquidation of leveraged ETFs, leading to a vicious cycle of increased selling and deeper market declines.
5. The Butterfly Effect: How South Korean Market Fluctuations Affect the A-share Market
South Korean market volatility is affecting the A-share market:
- Semiconductor Sector Linkage: The global technology sector is closely interconnected, so declines in South Korean semiconductors have pushed down A-share chip and equipment stocks (with the semiconductor index falling by 22% this month).
- Impact on QDII Funds: Some QDII funds hold significant positions in Samsung and SK Hynix. For example, a Chinese-Korean semiconductor ETF previously rose by nearly 97%, but now faces increased volatility, with frequent warnings about potential losses.
- Short-Term Sentiment: The A-share technology sector is likely to weaken due to external market trends, potentially leading to continued fluctuations.
Final Warning
Leveraged ETFs are high-risk instruments suitable for professional investors engaging in short-term trading. Retail investors should be cautious and avoid them. The South Korean market experience highlights that leverage can significantly increase returns, but it can also amplify losses. It’s crucial to invest in products you understand and not let the myth of quick wealth creation cloud your judgment.