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Roundhill Memory ETF Hits $6.5 Billion in 36 Days, Fastest Launch on Record

Investors are piling into a tight bet on memory-chip makers tied to the AI buildout.

Overview

  • DRAM reached $6.5 billion in assets in 36 days, outpacing early inflows into BlackRock’s and Fidelity’s spot bitcoin ETFs, according to Bloomberg Intelligence.
  • Since its early April launch, the fund has risen about 98% and logged a single-session 13% jump that drew roughly $1 billion of new money.
  • Trading cooled after the surge, with the ETF and key holding Micron easing from fresh highs in the next session.
  • The portfolio is highly concentrated, led by Micron at roughly 27%, SK Hynix near 26%, and Samsung around 20%, making it a focused wager on DRAM, storage, and high‑bandwidth memory for AI systems.
  • Analysts warn that memory markets swing in boom‑bust cycles, and that weaker demand or added capacity could trigger oversupply and falling prices that would pressure the fund.