Leverage concentration, high retail investor ratio: South Korea's semiconductor market 'amplifier mechanism' attracts attention

BlockBeats News, July 6 — Comparing U.S. stock markets with South Korean tech stocks shows that South Korean semiconductor leaders such as SK Hynix and Samsung Electronics have a clear “leveraged ETF-dominated” structure. The total assets of related single-stock ETFs and associated products are several times larger than the underlying stocks’ average daily trading volume, while U.S. tech stocks such as Micron Technology, Tesla, and Nvidia are still mainly traded on a spot basis, with ETF sizes far lower than their average daily trading volumes.

Data shows (as of June 29, 2026): the total assets of SK Hynix’s single-stock ETFs and related products reached $19.04 billion, while its average daily trading volume was only $4.47 billion; for Samsung Electronics, the corresponding figures were $12.43 billion and $4.49 billion. By contrast, Micron Technology’s ETF size was $9.88 billion and the average daily trading volume was $27.47 billion; Tesla was $5.95 billion versus $23.56 billion; and Nvidia was $5.57 billion versus $28.75 billion — U.S. stocks exhibit a structure opposite to that of South Korean stocks.

Due to the lack of individual stock options in the South Korean market, and the high proportion of retail investors, leveraged capital is therefore highly concentrated in ETF products, causing stock prices to be driven more by passive rebalancing behavior. Once the market declines, ETFs are forced to sell, but the market’s ability to absorb them is insufficient, which can easily amplify price volatility and form the “amplifier mechanism” unique to South Korean semiconductor market conditions.