SanDisk has painted an overly rosy picture of an 80% gross margin—is AI storage ultimately about hype or money printing?
SanDisk surged 13.67% in a single day, sending its market cap to $227.6 billion, and investors rushed in to chase the rally.
Then they started fantasizing—“The next Nvidia is here.”
Wake up.
August 13 was SanDisk’s Investor Day.
Management threw out a set of figures that left Wall Street stunned:
For fiscal 2028 to 2030, revenue will grow at a mid-to-high double-digit rate.
Non-GAAP gross margin of approximately 80%.
Operating margin of approximately 75%.
Adjusted free cash flow margin of approximately 50%.
After investing in the business, 100% of the remaining cash will be returned to shareholders.
What does that mean? An 80% gross margin—even Nvidia isn’t that aggressive.
The stock surged more than 17% intraday at one point, closed up 13.67%, and recorded $32.6 billion in trading volume, second among all U.S. stocks.
The storage sector followed higher across the board: Western Digital and SK hynix rose more than 7%, Seagate Technology gained nearly 5%, and Micron Technology rose more than 4%.
Overnight, AI storage became the hottest story in the entire market.
But here’s the question—
Can this story actually become reality?
The core support for this “explosive guidance” is the long-term NBM (New Business Model) agreements SanDisk is rolling out.
Put simply: customers sign long-term contracts with SanDisk to lock in procurement volumes for the next few years.
Eight customers have signed so far, covering approximately 50% of bit supply for fiscal 2027 and roughly two-thirds for fiscal 2028.
TrendForce estimates that these agreements have already locked in at least $93.9 billion in guaranteed minimum revenue.
SanDisk’s CEO said: “AI is fundamentally a storage-centric problem.”
Sounds pretty convincing.
But think about it further—
Why are customers willing to sign long-term agreements?
Because demand for AI storage is truly exploding.
SanDisk expects the global NAND market to exceed $300 billion in 2026, with year-over-year growth of approximately threefold. In 2027, it will approach $500 billion.
By 2030, the potential market for enterprise data center flash storage will reach 1.2ZB.
A single AI server consumes 3 to 8 times as much NAND as a traditional server.
Phison Electronics CEO Pan Jiancheng bluntly said that replenishing NAND capacity will take at least four years, even under the fastest scenario.
Demand is exploding, but supply cannot keep up. Prices can only move higher.
That is the confidence behind SanDisk’s 80% gross margin projection.
But the biggest risk is also right here—
The storage industry is notorious for its cyclicality.
In 2018 and 2022, NAND prices crashed twice, and flash memory companies were battered beyond recognition.
SanDisk says NBM agreements can “reduce the impact of cyclicality in the traditional storage industry.”
The problem is—long-term agreements lock in volumes, but not prices.
If AI demand falls short of expectations, if oversupply returns, or if customers default—
$93.9 billion in guaranteed minimum revenue?
The default protection is $16.5 billion.
What about the rest?
Goldman Sachs has a price target of $2,200.
Evercore ISI is even more bullish at $2,800.
The consensus among 23 analysts is “strong buy,” with an average price target of $2,054.
Sounds wonderful, right?
But—SanDisk has already risen 543% year to date.
Anyone chasing the stock at this level is betting on a story three years from now.
An 80% gross margin is a dream, and a 50% free cash flow margin is a target. But the market’s memory lasts only three months. If the next earnings report falls short of expectations, even the best story cannot withstand a sharp plunge.
You can dream up a rosy story, but don’t count on it to feed you.
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