South Korea Retail Investors Flock to ETFs as Semiconductors Surge
Retail investors in South Korea are increasingly moving into exchange-traded funds as market volatility grows following tensions between the United States and Iran. An image from Hana Bank’s flagship building in Seoul accompanies the account of how individual traders have shifted toward ETFs amid a backdrop of sharp swings in stocks, currencies and oil prices.
Data from the Korea Exchange show that through the 11th of this month, individual investors net bought 62.873 trillion won of domestically listed ETFs. The average daily purchase was about 8.981 trillion won, with total ETF trading value reaching 124 trillion won and a daily average of roughly 17.7 trillion won. By year-end comparisons, this month’s activity represents a marked expansion; March’s average daily ETF trading was about four times December’s, and January and February were also elevated.
Industry observers say ETFs are being used more aggressively as a market-tracking and risk-management tool. In rising markets, investors seek higher returns through theme-based or leveraged products; in downturns, they turn to index ETFs to diversify or target a rebound. An industry official noted that retail interest in ETFs is intensifying and that fund flow momentum could persist if the current market mood continues, with total ETF assets possibly exceeding 400 trillion won.
The appetite for ETFs has also pushed the size of the market, with the number of large ETFs growing rapidly. As of the 11th, out of 1,075 listed domestic ETFs, 79 had net assets of more than 1 trillion won, up from 66 at the end of last year, meaning 13 new funds crossed the 1-trillion-won threshold in just over two months.
Semiconductors stand out within the sectoral tilt of this surge. The KODEX AI Semiconductors ETF surged from about 800 billion won at year-end to roughly 2.2 trillion won recently, nearly tripling in size. HANARO Fn K-Semiconductors more than doubled over the same period, rising from about 890 billion won to roughly 1.8 trillion won. These moves reflect the sector’s weight in Korea’s economy and the global tech supply chain.
Leverage ETFs have joined the gains, signaling the market’s bullish tilt on tech exposures. Until year-end, only two leveraged ETFs—KODEX KOSDAQ 150 Leverage and KODEX Leveraged—had surpassed the 1-trillion-won mark. Now, new entrants such as TIGER Semiconductor TOP10 Leveraged and KODEX Semiconductor Leveraged have pushed the count to four, with the assets of existing flagship leveraged funds also rising two- to threefold.
Experts warn that the surge in ETF trading could amplify market volatility. Because liquidity providers must trade the underlying components in the same proportions as the ETF, heavy inflows into a single ETF can cause abnormal price swings in the constituent stocks, a dynamic sometimes described as Wag the dog. Recent episodes have seen the shares of active ETFs with high exposure to Cureant and Seongho Electro rise sharply, illustrating this risk.
To address investor risk, the Financial Supervisory Service held a briefing led by Deputy Vice President for Capital Markets and Accounting Hwang Seon-oh. The meeting urged brokerage firms to clearly communicate the potential for losses in leveraged and inverse products and to remind investors of the risks. Experts at the session noted that volatility in oil and natural gas prices, driven by the Middle East tensions, can widen the gap between the actual value of real assets and their ETF or ETN market prices, calling for heightened caution among investors.
Why this matters for the United States: Korea’s surge in ETF trading and the growth of semiconductor-focused funds highlight the vigor and risk of retail-driven flows in a major Asia-Pacific market. As Korea remains a cornerstone of the global semiconductor supply chain, sudden shifts in its equity and ETF markets can influence global tech stock valuations, manufacturing optimism, and cross-border investment strategies. For U.S. investors and policymakers, these dynamics matter for understanding liquidity, risk disclosure in leveraged products, and the interconnectedness of energy, commodities, and technology equities amid geopolitical tensions.