Sandisk Stock Rallies 600% as AI Memory Demand Spikes
Sandisk stock has risen about 600% since January as demand for memory hardware tied to generative AI keeps climbing. For holders, the move has turned a freshly standalone name into one of the market’s sharpest gainers in 2026, with pricing power and profit margins moving with it.
Sandisk's early February split
Sandisk became publicly available as a stand-alone entity in early February after Western Digital divested ownership. The company is now trading on its own as a leader in solid state drives, which use no mechanical components and are faster, more reliable, and extremely energy-efficient than hard disk drives.
251% year-over-year revenue growth in the fiscal third quarter showed how quickly the business has reset since the separation, with sales rising to $5.95 million. Operating income climbed 319% to $4.11 billion, while gross margin expanded 55.9 points to 78.4%, a mix that points to tighter supply and stronger pricing in memory products.
AI data-center demand
$1.1 trillion in projected capital spending by 2027 gives the current demand surge a large potential base. Goldman Sachs analysts put that estimate on total capital spending, and the article ties the memory buildout to generative AI and data-center expansion, both of which need more storage hardware.
2030 is the outer limit some industry leaders see for the current shortage, and that is the friction point in the trade. Memory is still a commodity-like industry with boom-and-bust cycles, and previous demand spikes ended in sharp crashes once supply caught up. If shortages persist, Sandisk and other memory makers can keep selling into a tight market; if supply normalizes faster, the margin profile can change just as quickly.
Memory cycle risk
1990s and 2010s stand out as the periods when earlier memory surges reversed after supply returned. That history hangs over the stock even after the 600% move, because the latest rally depends on a demand wave that still needs to outrun new capacity. For now, the numbers favor Sandisk, but the industry’s record says those gains do not move in a straight line.
