Micron Surges Past $700 Billion as AI Memory Crunch Drives Historic Rally

CNBC reported Tuesday that Micron’s Micron market cap has crossed $700 billion for the first time, placing the memory chipmaker firmly among the ten most valuable technology companies in the United States.

Shares of the company climbed 12% on the day. The stock has now risen 125% in 2026 alone and roughly 700% over the past twelve months.

A New Shipment Sparked Fresh Momentum

The single-session catalyst was a product announcement. Micron disclosed that it has begun shipping its highest-capacity commercially available solid-state drive. SSDs store more data than conventional hard disk drives while consuming less power. The timing proved potent for investors already watching the memory sector closely. Sandisk, which also manufactures NAND-based solid-state drives, jumped 12% in tandem and has now risen approximately sixfold this year.

Micron’s senior vice president for its core data center division noted that the new drive gives operators a way to manage rack-level costs. He added that power availability has become a defining limit on how quickly AI infrastructure can scale.

The AI Memory Crunch Behind the Rally

The broader backdrop is a global shortage of memory components. Demand accelerated sharply after the November 2022 launch of ChatGPT and has not let up. AI accelerators from companies like Nvidia and Advanced Micro Devices require substantial memory bandwidth to function at peak performance. That has strained a supply chain controlled almost entirely by three firms. Micron, South Korea’s SK Hynix, and Samsung collectively account for the vast majority of global memory production.

The supply gap remains wide. Sanjay Mehrotra, Micron’s chief executive officer, told CNBC in March after the company’s second-quarter earnings release that key customers were receiving only half to two-thirds of their requested memory volumes due to the ongoing crunch.

Why the Shortage Is Not Easing Quickly

Memory production cannot be expanded overnight. Fabrication facilities require years and billions of dollars to build and certify. Micron itself broke ground on a new manufacturing site in Clay, New York, in January 2026, but that capacity remains years from full output. In the interim, analysts tracking the semiconductor sector expect elevated pricing and constrained allocations to persist well into 2027. That structural tightness continues to reward shareholders even as end customers struggle to secure adequate supply for their AI build-outs.

Read Next: Nvidia Snaps Up Packaging Capacity as TSMC and Intel Ramp U.S. Operations