5 Fastest-Growing AI Infrastructure Stocks to Buy

2. SanDisk Corporation (NASDAQ:SNDK)

SanDisk Corporation (NASDAQ:SNDK) is one of the fastest-growing AI infrastructure stocks to buy. On May 12, 2026, reports highlighted SanDisk’s open-source SPRandom technology, a method designed to cut SSD preconditioning for ultra-high-capacity drives from days to hours. SSD preconditioning is not a consumer feature; it is an operational bottleneck for data centers, where drives need stable, predictable I/O behavior before being placed into production.

SanDisk Corporation says SPRandom can accelerate development and qualification, while conventional approaches can take more than 144 hours for a 128TB SSD and just over 6 hours with SPRandom. That fits the company’s AI storage thesis because inference, retrieval, and GPU-centric workloads depend on consistent access to large datasets, not just raw compute resources. The demand backdrop was visible in SanDisk’s fiscal Q3 2026 results, when revenue rose 251% year-over-year to $5.95 billion, and data-center revenue specifically rose 645%.

SanDisk Corporation (NASDAQ:SNDK) develops, manufactures, and provides NAND flash-based data storage devices and solutions, including SSDs, embedded products, removable cards, USB drives, wafers, and components for consumers, enterprises, and public cloud customers.