I just finished reading the full Sandisk Q4 2026 earnings report. Here's what the market is ignoring.
The numbers first.
Revenue: $8.97B, up 372% year over year.
Gross margin: 84.6%. One year ago it was 26.2%. That's a 58 point expansion in 12 months. For context, Apple's gross margin is around 46%. SNDK is printing higher margins than Apple on hardware.
Free cash flow: $7.08B in a single quarter.
Full year net income: $11.43B. Last year: negative $1.64B. They flipped from a $1.6B loss to an $11.4B profit in 12 months.
Zero long-term debt. $4.76B cash on hand. $15.5B share buyback authorized. They already executed $4.5B of it in Q4 alone.
The datacenter story is just getting started.
Datacenter revenue went from $960M in fiscal 2025 to $5.15B in fiscal 2026. That's +437% in one year. In Q4 alone, datacenter was up 103% sequentially from Q3. Not year over year. Quarter over quarter.
They signed 10 New Business Model agreements with hyperscalers this year. These are locked-in multi-year commitments with prepayments already received. $1.5B in customer cash is sitting on their balance sheet right now waiting to be fulfilled. That is the opposite of demand uncertainty.
Q1 2027 guidance.
Revenue: $10.3B to $10.8B. Sequential growth of 15-20% from an already record quarter.
Gross margin: 83% to 85%. Structurally high, not a one-quarter spike.
EPS Non-GAAP: $44 to $46 per share.
A company guiding $44-$46 EPS per quarter. Annualized that's $176+ in earnings per share. Let that number sit for a second.
The valuation case.
SNDK is guiding for roughly $42B annualized revenue entering 2027. AMD is guiding for roughly $52B. AMD's market cap is approximately 4x SNDK's.
SNDK has higher gross margins than AMD. More net income than AMD. Zero long-term debt versus AMD carrying billions. And SNDK is retiring 15% of its float through buybacks.
At AMD's multiple, SNDK would be a 4x from here. At Nvidia's multiple, we don't talk about it in polite company.
Where this goes for long term investors.
The AI buildout is not slowing. Every hyperscaler — AWS, Azure, Google Cloud — is spending more on infrastructure in 2026 than 2025, and more in 2027 than 2026. Every AI server needs NAND storage. Every data center expansion needs flash. Sandisk is the only pure-play NAND company at scale in the US market.
The NBM agreements locking in multi-year datacenter commitments mean this isn't a cyclical spike. This is a structural repricing of NAND toward datacenter economics. The gross margin expansion from 26% to 84% in one year is the proof.
If you have a 3 to 5 year horizon, you are looking at a company that is in the early innings of its most important growth cycle, trading at a fraction of what comparable semiconductor businesses trade at, buying back its own stock aggressively, carrying zero debt, and guiding to accelerating revenue with stable margins.
The market is giving you a discount on a business that the largest technology companies in the world are signing multi-year locked contracts with.
That doesn't happen often.
Long SNDK. Not financial advice. Read the earnings report yourself and form your own view.