The Roundhill Memory ETF (DRAM) achieved a $10 billion valuation in just 50 days, setting a new record for exchange-traded funds. This rapid ascent underscores intense investor enthusiasm for artificial intelligence infrastructure, particularly the massive data center build-outs by tech giants. The ETF's swift growth, fueled by $8.6 billion in inflows, highlights a concentrated bet on AI hardware.

DRAM's investment thesis targets memory chipmakers, with 73% of its assets concentrated in just three companies: SK Hynix, Samsung Electronics, and Micron Technology. This narrow focus contrasts with broader AI ETFs like BAI, which offers wider exposure to chipmakers such as Nvidia and AMD. The current market rush for AI plays mirrors the speculative fervor seen during the COVID-19 era with thematic ETFs.

This surge occurs as the market anticipates major tech listings and amidst projections of $7.6 trillion in AI data center spending over the next five years. While the DRAM ETF's performance is notable, analysts caution about its concentrated holdings. The rapid asset growth for AI and big data ETFs, which have more than doubled to $70.8 billion since the start of 2025, is primarily driven by inflows, not just market gains.