Micron Technology crossed a $1 trillion market valuation for the first time on Tuesday, becoming one of the biggest beneficiaries of the global AI infrastructure boom.
Shares of the U.S. memory-chip maker jumped 18% to a record high after UBS raised its price target on the company to $1,625 from $535 – the highest target among analysts covering the stock.
AI Memory Demand Fuels Micron Rally
While companies like Nvidia dominate AI accelerator chips, Micron focuses on memory products used to store, transfer, and process massive volumes of AI data.
That segment has become increasingly critical as hyperscalers and AI labs scale larger models and more compute-intensive workloads.
Micron said earlier that its entire 2026 supply of high-bandwidth memory (HBM) chips is already sold out, underscoring how demand for advanced AI memory continues to outpace manufacturing capacity.
The company has also begun production of its next-generation HBM4 products.
Shares of Micron have surged more than eightfold over the past year as supply constraints and aggressive AI spending by major technology companies boosted pricing power across the memory market.
AI Spending Expands Beyond GPUs
Micron’s rise reflects a broader evolution in the AI investment cycle.
Early enthusiasm around generative AI heavily favored GPU makers like Nvidia, but investors are now increasingly focusing on companies supporting adjacent layers of the AI infrastructure stack, including networking, storage, packaging, and memory.
The milestone also strengthens the U.S. position in the memory-chip market, historically dominated by Asian manufacturers such as Samsung Electronics and SK Hynix.
Samsung has already crossed the $1 trillion valuation mark, while SK Hynix continues gaining market share in AI-focused memory systems.
Micron Rebounds From Post-Pandemic Slump
The valuation milestone marks a dramatic turnaround for Micron after the post-pandemic semiconductor downturn.
Memory-chip manufacturers previously struggled with oversupply and weakening demand for PCs and smartphones during the inflation-driven slowdown that followed the pandemic boom.
Now, AI infrastructure spending has reversed that cycle, with companies racing to secure long-term compute capacity as competition intensifies around advanced AI models and future artificial general intelligence systems.
Institutional investors have increasingly piled into Micron shares this year, with thousands of firms disclosing new positions during the first quarter.
Despite the rally, Micron still trades at valuation multiples below major benchmark indexes, reflecting continued investor debate over how sustainable the current AI-driven memory cycle may ultimately become.
