Micron Stock Surges as AI Memory Demand and HBM Expansion Boost Growth Outlook

Shares of Micron Technology improved more than 5% to $447.32 on March 16, 2026, to a high of $454.86 in a single day when a strong demand in AI memory was evident. 

This movement was catalyzed by the fact that the 300,000 square foot cleanroom facility of Powerchip Semiconductor at Tongluo site in Taiwan was finally completed which was to be upgraded to high-bandwidth memory (HBM) production.

The Deal Details

After the deal was announced in January 2026, Micron started preparing for the new Tongluo site. Now that the transaction is finalized, Micron will start retrofitting the current cleanroom. Starting in fiscal 2028, significant product shipments from the current factory are anticipated to be supported by the new Tongluo location. 

By the end of fiscal 2026, the company plans to start construction on a second facility of a similar size, which will add about 270,000 square feet of cleanroom space, as part of its next phase of expansion at the site.

“The Tongluo facility complements our Taiwan operations and is a critical component of our global expansion plans,”

Manish Bhatia Said:

Memory is a strategic asset that dictates AI product performance, and the acquisition and phased ramp of this site strengthens our ability to capitalize on these significant opportunities. We appreciate the strong collaboration from the Taiwan government, our construction partners, and equipment and materials suppliers to enable and accelerate the ramp of our production capacity at this site.”

Nonetheless, it is expected to achieve a substantial production until fiscal 2028, thus, offering a cushioning period in the setting of a market that is already flooded with HBMs in 2026. 

This gives us a complement to our operations in Taiwan in order to satisfy the demand that is exceeding supply, Micron Executive Vice President Manish Bhatia said.

Cycle Trap Ahead?

Micron can be considered underpriced with the mentioned trailing earnings valuation and market capitalization of about $480 billion. 

Nevertheless, being a typical cyclicality stock, the infrastructure of HBM production is being rapidly accelerated, and it is dangerous that after 2028, there will be an oversupply, which will negatively affect prices, as has been the case in the past recessions. 

This intensive character of AI demand and the complexity of HBM, including long qualification cycles and the term of contractual relations of several years, might insulate the declines, and thus may turn Micron into a major seller of AI infrastructure rather than a mere salesman in a crowd. 

However, analysts in the industry warn that overbuilding would cause a re-rating, which would cool down the rally.

Micron’s strategic investment in Taiwan will help the company tap into the AI tailwind in the long run, but managed capital expenditures will dictate whether this super cycle will persist or it will revert to the usual volatility. 

The investors are thus on their guard as supply forces go on in an insatiable demand.