Roundhill Investments has rolled out the Roundhill Memory ETF , a new thematic fund designed to capture growing investor interest in the semiconductor memory segment powering artificial intelligence (AI) infrastructure. The ETF focuses specifically on companies producing DRAM, high-bandwidth memory (HBM), NAND flash, and solid-state storage—components increasingly seen as bottlenecks in scaling AI workloads.

The launch comes as memory chips move to the forefront of the AI buildout, with demand surging alongside large-scale training and inference needs. Unlike broad semiconductor funds, DRAM aims to provide concentrated exposure to firms supplying this critical layer of the AI stack, which CEO Dave Mazza described as a "key constraint" on AI development as models grow more complex.

Key Features of the Roundhill Memory ETF (DRAM):

Pure-play memory exposure: Targets companies across DRAM, HBM, NAND flash, and SSD ecosystems rather than diversified chipmakers

Top allocation: Major holdings include Samsung Electronics Co Ltd ( SSNLF ) (25%), SK hynix (24%), Micron Technology Inc (24%), SanDisk Corp ( SNDK ) (4.66%), and Western Digital Corp ( WDC ) (4.64%)

Global footprint: Portfolio spans key memory producers across Asia and the U.S., reflecting the industry's geographic concentration

AI-driven thesis: Built around rising memory demand tied to data-intensive AI training and inference workloads

Complement to broad chip ETFs: Offers targeted exposure that differs from diversified semiconductor funds, which dilute memory-specific upside

Holdings also include players like Seagate Technology Holdings PLC ( STX ) and Kioxia Holdings Corp ( KXHCF ) , with allocations subject to change.

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