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Memory Stocks Micron, Sandisk, Seagate, and Western Digital See Significant Gains from AI Demand
Key points
- Micron, Sandisk, Seagate, and Western Digital stocks have seen large gains since 2025.
- Demand for memory and storage in AI data centers is driving this growth.
- Companies specialize in DRAM, NAND, and HDDs, which are all needed for AI.
- Stocks recently pulled back 20-40% from late-June peaks.
AI Fuels Memory and Storage Stock Boom
Micron, Sandisk, Seagate, and Western Digital have emerged as key beneficiaries of the artificial intelligence revolution, with their stocks experiencing significant appreciation. These companies, all within the S&P 500, have seen their shares rise dramatically, driven by the surging demand for memory and storage components essential for building AI data centers. This demand has outpaced supply, leading to increased pricing power for producers.
Stock Performance Overview
Since the start of 2025, Micron has surged approximately 920%, Western Digital is up 820%, and Seagate has gained nearly 740%. Sandisk, which began independent trading in February 2025, has soared over 4,300%. While these companies have seen substantial gains, their stocks have recently pulled back, trading roughly 20% to 40% below their late-June peaks.
Differentiated Technologies
Although these companies benefit from the same AI spending boom, they specialize in different parts of the memory and storage ecosystem. Micron's primary focus is DRAM (dynamic random-access memory), which is the fastest and most expensive technology. Sandisk specializes in NAND flash memory, which is slightly slower but more cost-effective. Seagate and Western Digital produce hard disk drives (HDDs), offering the slowest access but the cheapest way to store large data volumes.
Complementary Roles in AI Infrastructure
These technologies are not interchangeable; modern computers and data centers require all of them due to their distinct functions. D.A. Davidson analyst Gil Luria noted that these technologies "do different things," and Micron CEO Sanjay Mehrotra added that AI creates demand across the entire memory and storage hierarchy, from high-bandwidth memory to SSDs.
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Reporting from
Four memory and storage companies—Micron, Sandisk, Seagate, and Western Digital—have experienced substantial stock growth due to increased demand for memory and storage in AI data centers. These companies specialize in different memory technologies, including DRAM, NAND flash, and hard disk drives, all of which are necessary for modern computing infrastructure. Despite recent pullbacks, their stock performance since 2025 highlights the impact of AI spending on the hardware sector.