Sandisk's market cap surges to $231B driven by explosive AI inference demand for NAND flash memory, marking a structural shift from commodity pricing to strategic long-term contracts with hyperscalers.
A flash memory company just hit a $231B market cap. Nobody saw this coming a year ago. Sandisk is up almost 500% year to date, and 3,686% off its 1-year low. The chart looks like someone made a typo. Here is the actual story. 𝗡𝗔𝗡𝗗 is the chip inside every SSD, USB stick, and phone. It holds data at rest, until something needs to read or write it. For ten years it was the worst business in semis: ubiquitous, low margin, brutal boom-bust pricing cycles, and zero pricing power versus customers. Then AI happened, and not the part everyone was watching. The AI infrastructure trade so far has been about GPUs and HBM, the high-bandwidth memory that sits next to a Nvidia chip. That story is well known and well priced. What got missed is what happens once you actually deploy the model. AI inference at hyperscale needs enormous amounts of fast storage. Every RAG query, every cached KV state, every model checkpoint, every embedding index lives on NAND. As inference workloads exploded across the industry, NAND demand went vertical at the exact moment supply was constrained from years of capex cuts during the last downturn. Sandisk happened to be the cleanest pure-play sitting in front of that demand. Spun out of Western Digital in February 2025, paid down its $2B spin loan within a month, and now sits with zero long-term debt and $3.74B in cash. When NAND pricing flipped from the worst chart in tech to the best, every dollar of revenue dropped straight to margin. The Q3 numbers are still hard to believe. Revenue at $5.95 billion, up 251% year over year. Gross margin came in at 78.4%, against company guidance of 65 to 67%. Datacenter revenue alone was up 645% year over year, and EPS landed at $23.41 against a $14.66 consensus. The structural shift is the part nobody is fully pricing. Memory has always traded on quarterly spot prices. Sandisk just signed five long-term supply agreements with hyperscalers running up to five years. Three of those alone imply $42 billion in minimum committed revenue. The five together carry over $11 billion in financial guarantees that trigger if a customer misses its quarterly take. NAND is being repriced from a commodity input to a strategic asset, in real time. Capital return matches the story. The board authorized a $6 billion buyback funded from operating cash flow. Free cash flow was $2.99 billion this quarter alone. The risk is worth naming. Every prior NAND boom mean-reverted hard. If hyperscaler capex pauses for any reason, this is a falling knife. The bull case is that the long-term contracts make 2026 through 2028 structurally different from any prior cycle, and that AI inference scales for another decade. Either way, this is the cleanest "AI infrastructure pick nobody had on their list" of the year.
Micron's stock surged over 236% as AI-driven demand for memory chips like HBM created a supply crunch. Wall Street sees Micron as potentially the next Nvidia, with revenue quadrupling and long-term agreements securing its position.
SK Hynix, a major supplier of memory chips for Nvidia's AI accelerators, had a successful US IPO, opening at $170 per share and reaching a $1 trillion valuation amid surging demand for DRAM and HBM driven by AI data center buildout.
Micron is thriving amid the AI-driven memory chip shortage, reporting record quarterly earnings and a strategic deal with Anthropic, while consumers face rising prices.
Micron's strong quarterly earnings signal a significant shift in the AI memory market, highlighting increased demand for memory chips used in AI applications.
AI infrastructure investment is driving up demand for memory (DRAM, NAND), causing aggressive price increases. UBS forecasts DRAM and NAND price hikes in Q3 and Q4, with the DRAM market expected to remain undersupplied until at least 2028.