Investors Flock to DRAM ETF Amid Sustained Memory Chip Shortages
The Roundhill Memory ETF crossed $10B in assets within 30 trading days of its Apr. 2, 2026 debut, per the Kobeissi Letter. That makes it the fastest-growing ETF in history.
The fund launched as the first pure-play memory chip ETF available to US investors. Its five largest holdings are SK Hynix, Micron Technology, Samsung Electronics, Kioxia Holdings, and Sandisk.
DRAM is up roughly 85% since its debut and ranks among the top 10 US ETFs by year-to-date inflows out of more than 5K listed funds, per the same report.
The fund also climbed from the 34th most-traded ETF by volume at the start of May 2026 into the top 20. The shift signals accelerating retail and institutional interest.
AI Demand Is Outrunning Supply
The rally traces back to a structural imbalance in the memory chip market.
Hyperscalers like Amazon are expanding AI data center capacity at scale, and memory chips handle the data storage and movement those systems depend on.
That surge in demand has made memory one of the tightest segments in the AI supply chain, giving chipmakers the pricing leverage to widen margins.
Micron operations chief Manish Bhatia said at a JPMorgan conference last week that he expects "Tightness for HBM, DRAM, and NAND to continue well beyond calendar year 2026."
Micron shares climbed roughly 16% on May 26. Sandisk gained roughly 8%. Both contributed to DRAM's roughly 13% single-session surge.
The structural case for memory chips is clear, but momentum this sharp cuts both ways. A recent sell-off tied to rising bond yields showed that high-growth positioning can reverse fast when macro conditions shift.
Investors treating DRAM as a long-term AI infrastructure play have a fund with real momentum behind it. But it's one that rewards watching more than it rewards forgetting.
