South Korean retail investors have significantly increased their activity in U.S. stock markets, net buying $4.5 billion worth of U.S. stocks in July as their domestic market underwent a correction [1]. Despite the local benchmark index entering bull market territory, Korean retail investors were net sellers of domestic stocks for most of last week, according to Korea Exchange data, while overseas investors became net buyers [1]. This shift is characterized by Korean investors maintaining exposure to AI and leveraged products, but opting for U.S.-listed securities instead of their home market [1].
A notable portion of these flows targeted American Depositary Receipts (ADRs), with $840 million invested in SK Hynix's U.S.-listed ADRs, making it the second most net-purchased U.S. security by Korean investors in July [1]. The ADRs have traded at a premium—about 10%—to the Korean shares and have exhibited greater volatility, which Owen Lamont of Acadian Asset Management described as 'absolutely crazy' and indicative of speculative excess [1]. Lamont warned that such price discrepancies are unusual and could signal a bubble, referencing similar dislocations during the dot-com boom [1].
Leveraged products have also been popular among Korean investors, with four of the ten most net-purchased U.S. stocks in July being leveraged ETFs [1]. The Direxion Daily Semiconductor Bull 3X Shares ETF (SOXL) was the most popular, aiming to deliver three times the daily performance of a semiconductor index [1]. Other leveraged products, including ProShares UltraPro QQQ and ProShares Ultra QQQ, ranked among the top purchases [1].
Analysts note that while Korean investors are changing markets, they are not necessarily changing their investment strategy. Phillip Wool of Rayliant Global Advisors observed that the purchases are largely tied to the same AI hardware theme that has been selling off in the local market [1]. Jung In Yun of Fibonacci Asset Management added that traders hurt by losses in Korean semiconductor shares or leveraged ETFs may be shifting to U.S. AI stocks perceived as higher-quality or more liquid, but are not reducing their exposure to the AI theme [1].
Although Korean flows are unlikely to sway broad U.S. markets, they could amplify volatility in individual stocks and thinner trades [1].
CONCLUSION
South Korean retail investors are moving substantial capital into U.S. stocks, particularly ADRs and leveraged ETFs tied to the AI theme, as their domestic market corrects. While this shift is unlikely to impact the broader U.S. market, it may increase volatility in specific securities. Analysts warn that speculative behavior and price discrepancies could be signs of a bubble.