Sandisk Soars 3900% Since 2025 Spin-Off as AI NAND Demand Outruns Supply

3 articles · Updated · Yahoo Finance · Aug 8

Sandisk has surged roughly 3,900% since Western Digital spun it off in February 2025, making it the top-performing stock in the S&P 500 and up nearly sixfold in 2026 alone.
AI data centers are driving the rally by consuming NAND flash for large-scale inference, while industry supply remains too tight to meet demand.
That supply-demand squeeze is also lifting rival Micron, whose shares have more than tripled this year as demand for DRAM, HBM and NAND accelerates.
Micron CEO Sanjay Mehrotra said in June that tight memory conditions should persist beyond 2027, citing AI demand across cloud, data center, mobile, automotive and embedded markets.
The broader takeaway for investors is that AI memory remains one of 2026's hottest trades, though the report notes past gains do not guarantee future returns.