The Roundhill Memory ETF (CBOE:DRAM) launched on April 2, 2026 as the first pure-play memory chip ETF, and in roughly six weeks it has returned 96%. Investors own DRAM for clean exposure to the HBM and AI memory build-out without picking between Samsung, SK hynix, or Micron. The catch: DRAM is a three-stock basket in ... The DRAM ETF Holds 73% in Just Three Companies, And That’s the Real Problem