Is Sandisk – Sandisk’s shares have surged 600% since January, powered by major jumps in revenue, margins, and operating income tied to AI data-center demand. But as investors look past the rally, cyclicality in memory markets and the possibility that today’s shortages don’
When Sandisk shares turned the corner in January, the market didn’t just notice—it moved fast. By 2026, the stock is up roughly 600% since January, a pace that has turned many investors into passengers on a momentum ride.
The question now isn’t whether the company is winning; it’s whether the gains can keep coming for long enough to justify chasing the stock at this moment.
Sandisk became publicly available as a stand-alone entity in early February, after its parent company, Western Digital, divested ownership. The separation matters because it lets each firm focus on a specific niche within computer memory and storage: Western Digital specializes in hard disk drives (HDDs). while Sandisk leads in solid state drives (SSDs).
Those aren’t marketing distinctions. SSDs use no moving parts, unlike HDDs, and that makes them faster, more reliable, and extremely energy-efficient. For AI data center clients, energy use and operational cost are not side issues—they are central. That’s one reason Sandisk’s story is tied so closely to the current AI infrastructure buildout.
Over the last 12 months, the performance of the two stocks has diverged sharply, pointing to why SSDs have found themselves in demand as AI infrastructure expands.
Sandisk’s numbers have also matched the market’s enthusiasm. In the company’s fiscal third-quarter, revenue soared 251% year over year to $5.95 million. Gross margins rose 55.9 points to 78.4%. Operating income jumped 319% to $4.11 billion. Even the margin level stands out in the story as described—high enough to reach beyond what many software companies that don’t sell physical products are thought to achieve.
The momentum is tied to the direction of the technology industry. Generative AI models continue to get larger and more demanding, and hyperscalers remain committed to expanding data centers. Analysts at Goldman Sachs project total capital spending could reach $1.1 trillion in 2027.
There’s also a darker edge to the bullish case: memory shortages. Some industry leaders believe those shortages could last until 2030. If that timeline holds, producers like Sandisk could keep benefiting from elevated margins by maintaining higher prices.
Still, the future is not promised just because the present is strong. The medium- to longer-term outlook remains difficult to predict. The argument here is straightforward: it’s hard to believe big tech companies will continue spending sums that often exceed their cash flow on a technology that still has elements of speculation. If shareholders eventually push management teams to show more restraint. the result could be a cooling—and a deflation of an AI-driven bubble.
Even without shifting sentiment, Sandisk carries another familiar risk. The memory industry tends to swing between booms and busts, like a commodity. Previous surges in memory demand—such as the PC boom in the 1990s or the smartphone boom in the 2010s—ended when supply caught up to demand and prices cratered. The current AI-driven boom, in this framing, doesn’t break that pattern.
The sequence is hard to ignore: Sandisk is benefiting from AI data-center demand through SSD advantages and strong recent earnings, while the same market structure that produced past crashes still hangs over the stock’s longer-term trajectory.
So is Sandisk still a buy? The stance described is cautious. If you already own it, the suggestion is to consider taking some profits off the table. If you missed the rally, the guidance is more blunt: look elsewhere for value.
The piece also includes a note from Stock Advisor. saying its analyst team identified what they believe are the 10 best stocks for investors to buy now—and that Sandisk wasn’t one of them. It cites the example of Netflix making the list on December 17. 2004. with hypothetical growth from a $1. 000 investment to $433. 268. and Nvidia making the list on April 15. 2005. with hypothetical growth to $1. 259. 391. It also states Stock Advisor’s total average return is 935% versus 206% for the S&P 500, with returns as of June 14, 2026. The disclosure adds that Will Ebiefung has no position in any of the stocks mentioned. while The Motley Fool has positions in and recommends Goldman Sachs Group. and that it has a disclosure policy.
For now. Sandisk’s story is still being written in the language of fast growth—revenue up. margins up. operating income up. and a stock that has already moved dramatically. But the “buy” debate is no longer theoretical. It’s arriving with timing. memory-cycle history. and the question of how long the shortage-driven margins can hold—right when the stock has already priced in a lot of optimism.
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