On December 16, 2025, at Micron Technology's office building in San Jose, California. The company is scheduled to release its earnings report on December 17.
The fastest-growing exchange-traded fund (ETF) in recent years has become another soaring artificial intelligence-themed investment, with its popularity rising across the board.
The Longhill Investments Memory ETF (ticker: DRAM), which focuses on the hot memory chip sector, has raised over $5 billion since its listing on April 2, with a single-day inflow of $1.1 billion on Thursday alone.
Data from Goldman Sachs shows the ETF saw explosive demand from the start, attracting over $1 billion in its first 10 trading days. This fundraising pace is second only to the initial launches of the Bitcoin ETF three years ago, BlackRock iShares' popular bond fund LQD, State Street Global Advisors' gold ETF GLD, and JPMorgan's Canadian equity fund BBCA.
Longhill CEO Dave Mazza stated in a phone interview: "Memory chips have been identified as a core bottleneck for AI development. The shortage of these chips won't last just a quarter; it will persist for years."
DRAM has recorded net inflows for all 23 trading days since its debut, with the fund's price surging 70% over the same period. Its top holdings, Micron Technology and SanDisk, have repeatedly hit record highs.
**Options Market Sees Heavy Bullish Buying** Options traders eager to position for the AI trend are flocking to the CBOE-listed DRAM options.
Thursday's options volume exceeded 90,000 contracts, with call buying nearly double put buying. The fund's options volume now ranks among the top 40 for all U.S.-listed ETFs.
Another major reason for the ETF's popularity: its inclusion of leading South Korean chip stocks SK Hynix and Samsung Electronics.
Mazza noted: "These are the world's top memory companies, but they are difficult for the average U.S. investor to access directly. Buying a broad South Korea ETF would mean holding many unrelated stocks passively, while in a general semiconductor ETF, the weighting for memory companies like Micron is too low."
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