Micron vs SanDisk: Which Memory Stock Has More Upside as AI Demand Surges?

Key Takeaways:

• Both Micron and SanDisk are signing long-term supply deals with AI customers worth tens of billions of dollars.
• Micron makes a special type of memory chip that AI systems desperately need. SanDisk does not.
• Analyst estimates suggest both stocks could double from here, but the paths and risks are very different.

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Memory chips are having a moment. Every artificial intelligence server, every data center running large language models, every AI phone being shipped today needs them. A lot of them.

Two companies sit at the center of that demand: Micron Technology, based in Boise, Idaho, and SanDisk Corporation, the storage specialist that spun out of Western Digital last year.

Both stocks have been on a tear. Micron shares closed at $1,132 on June 26, up roughly 800% over the past year, according to data from TIKR. SanDisk has done even better, gaining more than 4,300% over the same period, closing at $2,090.

So which one still has more room to run?

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Why memory chips matter for AI, and why this cycle is different

Before getting to the numbers, it helps to understand what these companies actually do.

Micron makes two broad categories of chips. One is DRAM, a fast type of memory that computers use to process data in real time. The other is NAND flash, a storage chip that holds data even when the power is off.

SanDisk makes only NAND. That sounds like a disadvantage, and in one important way, it is.

Here is the thing AI systems need right now: a specific type of DRAM called high bandwidth memory, or HBM. It sits directly atop AI processors and feeds them data at extreme speeds. Micron makes HBM. SanDisk does not and has no current plans to.

That distinction matters enormously. On Micron’s June 24 earnings call, chief business officer Sumit Sadana said demand for HBM is so far above supply that even customers locking in multiyear contracts are getting less than they actually want.

He said that is true not just for 2027, but for 2028 as well. The HBM market alone is expected to easily cross $100 billion in 2027, a milestone the company had previously expected to happen in 2028.

SanDisk, for its part, is not sitting still. On its April 30 earnings call, CEO David Goeckeler pointed to data center revenue growing 233% sequentially in the most recent quarter.

The company is betting that AI inference workloads, which store massive amounts of context data in NAND flash, will drive enormous structural demand for years.

“NAND has become a critical component of the underlying infrastructure,” Goeckeler said on the call.

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The numbers tell a striking, but complicated story

Both companies are printing money right now. But the semiconductor business is famously cyclical. Profits can swing from record highs to steep losses within a few years. That makes any single quarter’s earnings a shaky foundation for a long-term price target.

Looking at Micron’s financials on TIKR, LTM gross margins were 72.6%, and EBIT margins were 65.7%. Revenue for the LTM period ending May 2026 came in at $90.27 billion, up 167% year-over-year (YoY).

SanDisk’s most recent LTM data shows revenues of $13.18 billion, up 82.8% YoY, with gross margins of 56% and operating margins of 41.6%.

Micron is bigger, more profitable, and carries a more diversified product mix. SanDisk is smaller but growing fast off a much lower base, which explains why its stock has moved more aggressively.

On valuation, Micron trades at about 7.9x forward price-to-earnings (P/E), while SanDisk trades at 12.4x forward P/E, according to TIKR data. Neither looks expensive on an absolute basis, but memory multiples tend to compress fast when the cycle turns.

Analyst estimates from TIKR show that Micron’s revenue could reach $235 billion by fiscal 2027, then plateau near $257 billion in fiscal 2028. SanDisk estimates revenue could reach around $44 billion in fiscal 2027, then near $46 billion in fiscal 2028.

That slowdown in both estimates after 2027 is worth watching. It could mean analysts are modeling a cycle peak.

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Which stock offers better risk-adjusted upside?

Based on TIKR’s guided valuation models, Micron has a target price of $2,442 by August 2028, implying about 116% upside and a 42% annualized return. SanDisk’s model points to $4,345 by June 2028, implying roughly 108% upside and a 44% annualized return.

On raw return potential, the two look roughly equal. But Micron’s HBM franchise provides a layer of demand insulation that SanDisk simply cannot match. When hyperscalers say they cannot get enough HBM, they are talking about Micron.

Micron has also announced 16 strategic customer agreements, or SCAs, with $22 billion in customer cash deposits already received. These are take-or-pay deals, meaning customers pay whether or not they actually take delivery.

SanDisk has signed five new business model agreements covering over one-third of its fiscal 2027 bit shipments, with more than $11 billion in financial guarantees.

Both companies are locking in demand in ways this industry has never seen before. But Micron is doing it across both DRAM and NAND, with an AI-specific product that is central to every major GPU cluster being built today.

For investors willing to think in terms of cycle positioning rather than quarterly snapshots, Micron’s broader product edge and HBM dominance make it the more durable bet. SanDisk offers explosive NAND upside, but with a narrower moat and a business that, by its own CEO’s admission, is still early in proving out its new model.

Both stocks could double. But Micron has more ways to win.

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How Much Upside Does Micron Stock Have From Here?

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Disclaimer:

Please note that the articles on TIKR are not intended to serve as investment or financial advice from TIKR or our content team, nor are they recommendations to buy or sell any stocks. We create our content based on TIKR Terminal’s investment data and analysts’ estimates. Our analysis might not include recent company news or important updates. TIKR has no position in any stocks mentioned. Thank you for reading, and happy investing!