A Word of Caution: Single-Stock Leveraged and Inverse ETFs
The Benchmark for Leverage Is the “Daily Rate of Change”
Wag the Dog
Single-stock leveraged and inverse ETFs have now been listed in Korea as well. The move is intended to prevent capital outflows by domestic investors into Samsung Electronics and SK hynix leveraged ETFs that are already listed, or may soon be listed, overseas. While this broadens the range of investment products available, it also raises concerns about an increase in short-term trading and greater market volatility.
Leveraged and inverse ETFs track two times or minus one times the daily rate of change of the underlying asset. The key point to note is that the benchmark is the daily return, not the cumulative return over a given holding period. If the underlying asset rises or falls in a clear trend, the difference may not be significant. But if prices simply fluctuate up and down without a clear direction, returns over a certain period can differ sharply from what investors may expect.
For example, suppose an investor buys Samsung Electronics at KRW 250,000 at the close on day T and holds it for five trading days. If the stock fluctuates daily but ends at the same KRW 250,000 on T+5, the holding-period return is 0%.
'Please refer to the attached file for an example of percentage changes.'
However, if the investor had held a leveraged or inverse ETF over the same period, the return would be -0.55%. Even though the underlying asset ends at the same price, leveraged and inverse ETFs move based on daily percentage changes, which can lead to unexpected results. This is a characteristic of compounding. In fact, a -2x inverse ETF would produce a holding-period return of -1.67%. For this reason, leveraged and inverse ETFs are inherently more suitable for short-term trading, and their expansion is likely to attract more short-term investors.
A second point of caution is the potential for higher volatility. In stock markets, the phrase “wag the dog” refers to a situation where derivatives become so influential that they amplify volatility in the underlying cash market. Leveraged and inverse ETFs use futures, meaning they tend to buy more as the underlying asset rises and sell more as it falls. In other words, they can magnify price swings in the underlying asset.
Most leveraged ETFs listed on the 27th are structured by holding 100% of the underlying cash equity and adding another 100% exposure through futures positions. Suppose a leveraged ETF initially has net assets of 100 invested in the spot asset. If the underlying asset rises 10%, the spot position increases to 110, and the futures position generates a gain of 10, bringing total net assets to 120. At that point, total exposure to the underlying becomes 220, combining 110 in spot and 110 in futures. But because the target exposure for the next trading day must be 240, or twice the new net asset value of 120, the manager must add 20 more in exposure by purchasing 10 more in spot and 10 more in futures.
Inverse ETFs generally create a -1x daily return position by selling futures. If the underlying asset rises 10%, the ETF incurs a loss of 10, reducing net assets from 100 to 90. At that point, the futures exposure becomes -110, reflecting both the initial -100 position and the 10 loss. But because the target exposure for the next day must be -90, equal to minus one times the new net asset value, the inverse ETF must also buy back 20 worth of futures positions.
The conclusion is that when the underlying asset rises, both leveraged and inverse ETFs buy. When the underlying asset falls, both leveraged and inverse ETFs sell into the decline. In short, regardless of whether prices move up or down, leveraged and inverse ETFs tend to trade in ways that amplify volatility.
There are other factors investors should keep in mind. A leveraged ETF structured with 100% spot and 100% futures exposure may incur costs related to funding futures margin requirements. There are also rollover costs as futures contracts approach maturity, and the basis—the gap between spot and futures prices—may deviate from theoretical levels, preventing the ETF from perfectly tracking its target multiple.
Looking at global capital markets, there is still a growing list of issues to be addressed, including cryptocurrency spot ETFs and blockchain-based settlement systems. The introduction of new investment products and制度s inevitably raises concerns about mis-selling and investor protection. Even so, rather than hesitating, the better course is to move capital market advancement forward through active consultation and sufficient explanation.
한글 원문 '한경 프리미엄9 구독' : https://www.hankyung.com/article/202605270805i