Here is why Micron stock is up over 4% today

Micron stock (NASDAQ:MU) was on track for a strong open on Monday as investors leaned into a familiar but increasingly powerful theme.

The MU stock surged over 4% in the pre-market trading on 16th March, a strong move which comes days ahead of the company's fiscal second-quarter report on March 18.

The development came as the company announced plans to build a second manufacturing plant in Taiwan at the Tongluo site it recently acquired from Powerchip Semiconductor Manufacturing.

Micron stock: Sold-out HBM supply sharpens the bull case

At the heart of Monday’s move is Micron’s unusually strong visibility into its high-bandwidth memory (HBM) business.

HBM is a premium segment tied directly to AI servers and accelerators.

Recently, Micron CEO Sanjay Mehrotra said the company has “completed agreements on price and volume for our entire calendar 2026 HBM supply, including Micron’s industry-leading HBM4.”

That matters because HBM is one of the highest-value products in the memory stack.

Micron has also said the overall HBM market could grow from about $35 billion in 2025 to roughly $100 billion by 2028.

The numbers reinforce the view that the current AI memory cycle is not just a short-lived inventory bounce but a multi-year structural expansion.

This context is the backbone of the bulls' optimism as Micron is no longer being valued only on conventional DRAM and NAND swings, but increasingly on its position inside the AI supply chain.

Analysts are getting louder before earnings

Wall Street has been reinforcing that narrative in recent days with another round of target hikes.

Wells Fargo raised its price target on Micron stock to $470 from $410 while maintaining a positive stance, and Citi analysts reiterated a Buy rating while lifting his target to $430 from $385.

The Citi analyst further emphasized that a “powerful combination of surging AI demand and supply bottlenecks linked to new chip fabrication capacity” could extend the current cycle.

Morgan Stanley’s analyst pointed to “tightening supply conditions in the industry” and said Micron could earn as much as $52 per share in 2026.

The next near-term catalyst is the company’s earnings report on March 18, which will either validate or complicate the fast-building optimism around the stock.

Analysts expect Micron to post about $19.10 billion in fiscal second-quarter revenue and normalized earnings per share of $8.59.

Wells Fargo’s bullish framework also assumes the company can sustain gross margins near 68% as higher-value HBM shipments scale and broader memory pricing improves.

In other words, Monday’s rally is not being driven by a vague AI halo alone.

It is being driven by a very specific combination of contractually sold-out HBM supply, fresh analyst target increases, bullish earnings expectations, and growing confidence that Micron has entered a more profitable phase of the AI cycle.