Micron Technology has become one of the clearest beneficiaries of the AI infrastructure buildout, with its high-bandwidth memory chips so in demand that every unit it can produce through 2026 is already spoken for. The stock has responded accordingly, climbing more than 45% in just 30 days between late March and May 2026.
But Reuters Breakingviews is waving a yellow flag. The argument: the semiconductor industry’s capital expenditure cycle is accelerating fast enough that today’s supply crunch could become tomorrow’s glut, making this a treacherous entry point for new investors.
The supply-demand imbalance powering Micron’s run
Here’s the core dynamic. Hyperscalers, the Microsofts and Googles and Metas of the world, are building out AI data centers at a pace that has overwhelmed the memory chip supply chain. High-bandwidth memory, or HBM, is the specific flavor of DRAM that sits inside AI accelerators and enables the massive parallel processing these workloads require. Think of it as the short-term memory that lets an AI model hold enormous datasets in its head while it works.
Micron’s entire HBM output for 2026 is locked up under fixed-price contracts. The company estimates it can only satisfy somewhere between 50% and 67% of key customer demand over the medium term. That gap between what customers want and what Micron can ship is the engine behind its pricing power.
