Key Takeaways:
South Korean retail investors net-sold $664 million of the triple-leveraged SOXL semiconductor ETF on Aug 3, cashing out 17.5 percent of their July accumulation.
"It's become a 24-hour cycle," Peter Kim, global investment strategist at KB Financial Group, said. "And retail investors, they want to be able to trade these things anytime they want."
The single-day outflow equaled 17.5 percent of the $3.786 billion Korean retail investors net-purchased in SOXL during July, Korea Securities Depository data show. They flipped back to net buying of $57 million on Aug 4, though the combined two-day net sell still reached $607 million. The profit-taking followed a volatile stretch in which SOXL traded above $200 in early July, fell below $100, then rebounded after the Philadelphia Semiconductor Index surged 8 percent on July 30.
The rotation did not mark a retreat from US equities. Korean retail investors net-purchased $278 million of US stocks in August, extending a three-month buying streak, with Micron, SanDisk, and SK Hynix ADRs drawing the largest inflows. Micron, which captured 25 percent of global DRAM revenue in the second quarter, reports earnings around Sept 22.
The leveraged ETF unwind extended beyond SOXL. Korean retail investors also net-sold $45.63 million of KORU, a triple-leveraged fund tracking South Korea's stock market, over Aug 3-4, according to SEIBro data.
Individual semiconductor names absorbed the rotation. Investors net-purchased $145.47 million of SanDisk and $140.83 million of Micron over the two days, while SK Hynix ADRs drew $93.23 million. The buying came as Micron shares traded up 3.23 percent at $856.32 in premarket, supported by tight global memory supply and sustained AI infrastructure spending.
The flows show a broader pattern in Korean retail trading. Monthly net purchases of US equities climbed from $632.96 million in June to $4.669 billion in July, even as the Kospi tumbled roughly 40 percent from its June high, triggering circuit breakers four times in July. SK Hynix, which began trading on the Nasdaq in a record $26.5 billion foreign listing, has become a bellwether for the AI memory cycle.
The rotation into individual chipmakers reflects confidence that AI-driven memory demand will sustain earnings. Micron's 25 percent share of global DRAM revenue in the second quarter put it one point behind SK Hynix at 26 percent, with Samsung Electronics leading at 39 percent, according to Counterpoint Research. Wall Street expects Micron to post earnings per share of $31.24 on revenue of $50.72 billion when it reports around Sept 22, up from $3.03 and $11.31 billion a year earlier.
The shift toward single-stock exposure carries its own risks. Triple-leveraged products like SOXL are designed to deliver 300 percent of daily returns and do not guarantee that multiple over longer periods, according to Direxion, whose SOXL net asset value stood at $116.63 on Aug 3. As Korean retail investors borrow at record levels to fund stock purchases, a renewed downturn could force margin calls and compound losses, a pattern that played out when the Kospi slid from its June peak.
This article is for informational purposes only and does not constitute investment advice.
