The Roundhill Memory ETF (DRAM) experienced a nearly 32% decline in July due to a wave of margin calls hitting over-leveraged memory stock investors, particularly in South Korea. This unwinding of retail leverage led to a significant drop in the KOSPI index, marking its worst monthly performance since 2008, and highlights the risks of speculative frenzies fueled by borrowed money.
The DRAM ETF, heavily weighted towards South Korean semiconductor giants like Samsung Electronics and SK Hynix, plunged nearly 32% in July. This sharp decline was triggered by a wave of margin calls on over-leveraged retail investors, particularly in South Korea, who had poured money into these ETFs. The unwinding of this leverage caused the KOSPI index to suffer its worst monthly performance since 2008, indicating systemic risk. While a hedge fund rescue by Citadel temporarily averted a fire sale, the broader market remains vulnerable, with analysts warning that the unwinding of these leveraged bets may not be over. This event highlights the dangers of speculative bubbles fueled by borrowed money and poses a significant short-term risk for investors in memory stocks and the broader South Korean market.