New York, June 2, 2026, 11:12 AM EDT — The Roundhill Memory ETF (DRAM) has emerged as one of the hottest exchange-traded funds in the U.S. market, drawing massive inflows as investors seek direct exposure to the memory chip sector driving artificial intelligence advancements. On May 29, the fund attracted $553.7 million in new capital, pushing its total assets under management to $13.36 billion, according to data from ETF.com. This inflow placed DRAM among the top 10 daily creations for U.S.-listed ETFs.
Rapid Growth Since Launch
Launched on April 2, 2026, DRAM has experienced explosive growth, with assets climbing from zero to over $13 billion in less than two months. The fund gained nearly $8 billion in May alone, representing a more than 60% increase in assets during the month. By the end of May, DRAM had amassed approximately $13.4 billion in assets, reflecting intense investor appetite for AI-related memory plays.
The broader U.S. ETF market also saw strong activity in May, with total inflows of roughly $200 billion. DRAM’s inflows on May 28 were $608.4 million, placing it just behind major ETFs such as Vanguard’s S&P 500 ETF and the Invesco QQQ Trust. In contrast, the VanEck Semiconductor ETF (SMH) experienced a $1.0 billion redemption during the same period, highlighting the shift toward specialized memory exposure.
Portfolio Composition and Strategy
DRAM is designed to provide targeted exposure to global memory chip stocks, focusing on high-bandwidth memory (HBM), DRAM, and NAND flash memory. HBM is a critical component paired with AI accelerators, making it a key beneficiary of the AI infrastructure buildout. The fund’s top holdings at launch included Samsung Electronics at 24.99%, SK hynix at 24.22%, and Micron Technology at 23.83%. Smaller positions were held in Kioxia, SanDisk, Western Digital, and Seagate.
Geographically, the portfolio is heavily weighted toward South Korea at 49.25% and the United States at 37.65%, reflecting the dominance of Korean memory manufacturers. These figures include both direct stock holdings and total return swaps, which provide synthetic exposure without direct ownership. The fund carries a gross expense ratio of 0.65%.
Market Context and Investor Sentiment
Investors have embraced DRAM as a proxy for accessing Korean memory stocks, which can be difficult to trade directly. “A lot of investors view this as a proxy for alluring but otherwise hard-to-access Korean stocks,” said Steve Sosnick, market strategist at Interactive Brokers, earlier in May. Dave Nadig, an analyst at ETF Trends, noted that investors were “jumping in with both feet” after DRAM reached $1 billion in assets in just 10 trading days.
The fund’s narrow focus on memory pricing contrasts with broader chip ETFs. The iShares Semiconductor ETF (SOXX) provides wider coverage of U.S.-listed chip companies, while SMH includes both chip designers and equipment makers such as ASML, Lam Research, and Applied Materials. DRAM’s concentrated bet on memory stocks means its performance is closely tied to memory price cycles and AI demand.
Risks and Considerations
Despite its popularity, DRAM carries significant risks. The fund’s prospectus warns that memory stocks are susceptible to price volatility, supply disruptions, technical failures, and export restrictions. The use of swaps introduces additional risks, including leverage, counterparty default, and pricing inefficiencies. Given its concentrated portfolio, DRAM could experience outsized losses if HBM supply outpaces demand or if AI data-center spending declines.
Chris Gannatti, global head of research at WisdomTree, described the broader trend as a hardware rally. “We are seeing a broadly favorable tech hardware environment,” he said. For DRAM investors, the key question is whether memory will remain a critical bottleneck in the AI ecosystem long enough to sustain the fund’s rapid growth.
Market Movements
On Tuesday morning, DRAM traded near $68.09 as of 10:57 a.m. EDT. Meanwhile, SMH and SOXX were trading higher, but individual memory stocks like Micron and SanDisk dipped, reflecting mixed sentiment within the sector. The divergence underscores the volatility inherent in memory chip investments.
