Micron Beats Quarterly Forecasts as Artificial Intelligence Drives Global Memory Shortage

Micron reported better-than-expected quarterly revenue and earnings on Wednesday, buoyed by surging demand for artificial intelligence hardware and a broader global memory crunch, according to reporting by CNBC Business (https://www.cnbc.com/2026/09/30/micron-mu-q4-earnings-report-2026.html).

The company's stock has risen more than 500% over the past year as severe supply constraints meet historic demand for memory required by artificial intelligence models. The resulting price increases for memory components have driven up retail prices for consumer hardware such as Apple's iPads and MacBooks.

Micron is the only domestic manufacturer of high-bandwidth memory (HBM)—stacks of general-purpose dynamic random-access memory (DRAM) configured to handle heavy AI workloads. Advanced central and graphics processors from suppliers including Nvidia and AMD require large amounts of HBM, outstripping the current production capacity of global manufacturers.

To expand its manufacturing footprint, Micron is investing $250 billion into two new HBM production campuses. Its largest site broke ground in Clay, New York, in January, while a new fabrication facility in Boise, Idaho, is slated to begin operations next year.

South Korean semiconductor makers SK Hynix and Samsung, the other leading producers of HBM, are also undertaking large-scale domestic factory expansions. Although Micron currently holds the smallest market share among the three suppliers, its market capitalization has climbed above $1.2 trillion.

The earnings release follows recent political summits for Micron Chief Executive Sanjay Mehrota, who attended an AI regulation summit hosted by President Donald Trump on Tuesday after joining a White House dinner with Chinese President Xi Jinping. Executive leadership scheduled a conference call at 4:30 p.m. Eastern Time on Wednesday to discuss the quarterly performance.