Roundhill Memory ETF Hits $6.2 Billion in 30 Days

Benzinga reported Sunday that the Roundhill Memory ETF has gathered $6.25 billion in assets under management inside its first 30 days of trading. The fund, which trades on BATS under the ticker DRAM, has also climbed more than 80% since its April debut. Few ETF launches in market history have moved this fast.

What the DRAM ETF Actually Holds

The Roundhill Memory ETF is a highly concentrated vehicle. It holds just 13 positions, each tied to the memory chip supply chain. Micron Technology carries the largest weighting, followed by South Korea’s SK Hynix, Sandisk, Kioxia, Seagate, and Western Digital. The fund charges an expense ratio of 0.68%.

Those holdings have delivered extraordinary returns in 2026. Sandisk shares have risen roughly 540% year-to-date and have more than quadrupled over the past 12 months alone. Seagate Technology is up approximately 177% for the year, while Micron and SK Hynix have each gained more than 150%.

Also Read: Nvidia’s Data Center Sales Beat Expectations as AI Spending Accelerates

The AI Boom Behind the Memory Shortage

The rally traces directly to surging artificial intelligence infrastructure spending. Memory prices climbed between 80% and 90% in the first quarter of 2026, squeezing supply and lifting revenue across the sector. Sandisk’s most recent quarterly revenue nearly doubled year-over-year to $5.95 billion. Micron’s second fiscal quarter sales rose 75% to $23.5 billion. Seagate posted revenue of $3.1 billion, with its chief executive describing the current period as a new era of structural growth.

Driving that demand is a massive wave of data center capital expenditure. Microsoft, Meta Platforms, Amazon, and Alphabet combined are on pace to spend roughly $725 billion on infrastructure this year. A large share of that budget flows directly into GPUs and memory chips.

Also Read: Big Tech Capex Spending Hits Record as Data Center Race Intensifies

Valuations Look Reasonable, but Overbought Signals Flash

Not everyone is convinced the rally has further to run. Investor Michael Burry has publicly warned that the memory chip sector is exhibiting bubble-like characteristics. A look at valuation multiples offers some reassurance. Micron trades at roughly 12 times forward earnings, well below the S&P 500’s current multiple near 21. Sandisk and Western Digital sit closer to 24-25 times.

The more immediate concern is technical. DRAM’s Relative Strength Index has climbed to 83, with Micron and Sandisk posting similar readings above 80. Readings that deep in overbought territory, combined with sharp divergences from long-term moving averages, raise the prospect of a near-term pullback driven by profit-taking.

Read Next: What the AI Infrastructure Buildout Means for Semiconductor Stocks in 2026