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The Roundhill Memory ETF, trading under the ticker DRAM, has crossed $20 billion in assets under management. For a fund that launched on April 2, 2026, that growth trajectory is, to put it mildly, unusual.
To put the pace in context: DRAM hit $1 billion in AUM after just 10 trading days. It reached $6.5 billion within roughly 36 days. Now it sits above $20 billion. Most ETFs spend years trying to crack the $1 billion mark.
What DRAM actually holds
DRAM is the first exchange-traded fund built exclusively around memory chip companies. The fund’s primary holdings include Samsung, SK Hynix, and Micron, the three companies that collectively dominate the global market for DRAM chips, NAND flash storage, and high-bandwidth memory (HBM).
The ETF is actively managed, meaning a portfolio team is making deliberate allocation decisions rather than passively tracking an index. It uses a mix of direct equity positions and derivatives to gain exposure across the memory sector. The expense ratio is 0.65%.
One thing worth noting: DRAM holds zero cryptocurrency or blockchain-related assets. This is a pure semiconductor play.
Why memory chips became the hottest trade on Wall Street
Training and running artificial intelligence models requires enormous amounts of computational power. That computation, in turn, requires memory. Every GPU in a data center needs high-bandwidth memory to shuttle data fast enough to keep the processor fed. As companies like Nvidia, Google, Meta, and Microsoft pour billions into AI infrastructure, the bottleneck has increasingly shifted from processors to the memory that supports them.
HBM has become the star of this story. High-bandwidth memory stacks multiple layers of DRAM chips vertically, connected by microscopic wires, to deliver the throughput that AI workloads demand. SK Hynix has been the dominant supplier to Nvidia, while Samsung and Micron have been racing to catch up.
Investors have clearly noticed. DRAM pulled in $203 million in a single reporting period. The fund’s growth from $6.5 billion to north of $20 billion in a matter of weeks suggests that large allocators are parking serious capital in this thesis.
What this means for investors
DRAM’s ascent to $20 billion in AUM tells us something broader about where capital is flowing right now. Investors are moving past generalized tech exposure and into hyper-specific bets on the AI supply chain.
That specificity cuts both ways. Concentrated exposure to three or four companies means the fund’s performance is tightly correlated with memory pricing cycles and the capital expenditure plans of a handful of hyperscale cloud providers.
The 0.65% expense ratio also deserves scrutiny at this scale. On $20 billion in AUM, that translates to roughly $130 million in annual fees for Roundhill.
Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.
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