5 Fastest-Growing AI Infrastructure Stocks to Buy

3. Micron Technology, Inc. (NASDAQ:MU)

Micron Technology, Inc. (NASDAQ:MU) is one of the fastest-growing AI infrastructure stocks to buy. On May 22, 2026, Micron said it had started manufacturing 1-alpha DRAM at its Manassas, Virginia, fab, calling it the most advanced memory technology ever produced in the United States. The expansion is highly relevant for AI infrastructure because memory supply has become a strategic bottleneck across data centers, networking, industrial systems, vehicles, and edge devices as AI workloads spread beyond centralized training clusters.

Micron said the Manassas investment would quadruple its DDR4 wafer supply at the site, while its broader U.S. investment plan spans approximately $200 billion across Virginia, Idaho, and New York. The company’s latest reported quarter shows why that capacity push is tied to demand rather than optics: fiscal Q2 2026 revenue rose to $23.86 billion from $8.05 billion a year earlier, with operating cash flow nearly tripling to $11.90 billion.

Micron Technology, Inc. (NASDAQ:MU) provides memory and storage products, including DRAM, NAND, NOR, high-bandwidth memory, SSDs, and related solutions for data centers, AI, cloud, consumer, mobile, automotive, and industrial markets.