Memory chips have become an increasingly important bottleneck in the global buildout of artificial intelligence infrastructure, putting companies exposed to HBM, DRAM and NAND at the center of the semiconductor investment cycle. Against this backdrop, the Roundhill Memory ETF (DRAM) offers a more targeted way to track the global memory segment rather than the broader semiconductor industry.

A Focused Approach to the Global Memory Market

DRAM began trading on April 2, 2026, on the Cboe BZX Exchange and carries a 0.65% expense ratio. The actively managed ETF focuses on companies for which at least 50% of revenues or profits are attributable to the development or manufacturing of semiconductor memory products. Its mandate covers high-bandwidth memory (HBM), dynamic random-access memory (DRAM), NAND flash and SSD technologies, as well as other memory and storage products.

The strategy is therefore narrower than broad semiconductor ETFs, giving investors exposure to a specific part of the chip supply chain that has become increasingly linked to AI data-center spending.

Three Companies Account for Most of the Exposure

DRAM’s portfolio is concentrated among major global memory producers. As of April 2, Samsung Electronics represented 24.99% of the portfolio, followed by SK hynix at 24.22% and Micron Technology at 23.83%. Together, the three companies accounted for roughly 73% of the fund’s holdings at inception, highlighting the industry’s concentration among a small number of leading producers.

The fund’s geographic exposure was also concentrated, with South Korea representing 49.25% and the United States 37.65%, followed by Taiwan at 6.31% and Japan at 4.87%. That structure reflects the dominant role of South Korean and U.S. companies in the global memory market.

AI Demand Is Reshaping Memory Supply and Pricing

Recent industry developments underscore why memory has become a central part of the AI infrastructure story. Micron said in September that long-term supply commitments had increased to $32 billion from $22 billion in June, while forecasting first-quarter revenue of $61.5 billion, well above analysts’ expectations. The company also expects memory supply-demand conditions to remain tight into fiscal 2027 and 2028.

At the same time, Samsung has indicated that HBM could account for nearly 30% of global DRAM wafer capacity next year, compared with about 20% currently. Because HBM and standard DRAM use overlapping production capacity, faster HBM expansion could affect the availability of conventional memory and influence pricing across the market.

For DRAM, the next phase of the cycle will depend on AI data-center investment, memory pricing, new production capacity and technological shifts between HBM, DRAM and NAND. Investors will also need to monitor semiconductor valuations and global borrowing costs, particularly as elevated Treasury yields can pressure high-growth technology stocks. For Israeli investors, currency movements between the U.S. dollar and shekel add another layer to the performance of a U.S.-listed, globally exposed ETF.