Micron Technology (NASDAQ:MU) has been in crushing form on the stock market in 2026 so far, with shares of the memory specialist already up 256% this year.

This impressive rally will be put to the test when Micron releases its fiscal 2026 fourth-quarter results on Sept. 30. The good news for investors is that Micron stock has been regaining momentum lately. It has jumped over 23% since the beginning of August, and there is a good chance that Micron's upcoming results will give the stock a major boost.

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Let's look at the reasons why Micron could make a parabolic move after Sept. 30.

Image source: Micron Technology.

Strong AI infrastructure spending will be a tailwind for Micron

Memory is a key component in artificial intelligence (AI) data centers. It facilitates the rapid movement of large amounts of data between chips and data center clusters, as well as the storage of data needed to train AI models and run inference applications.

The mission-critical nature of memory chips in AI infrastructure explains why demand is exceeding supply, creating a shortage and inflating prices. This has been the primary catalyst behind Micron's incredible growth in recent quarters. Importantly, AI infrastructure spending isn't showing any signs of slowing down.

Consulting giant PwC estimates that annual data center capital expenditure will hit $800 billion in 2026. The firm notes that this annual capex could rise to a whopping $1.8 trillion in 2050. PwC projects that cumulative AI infrastructure spending through 2050 would land at $31.6 trillion. The firm also points out that the majority of this spending will be allocated to recurring chip upgrades.

So, the ongoing infrastructure boom that's fueling Micron's growth won't be tapering off. In fact, PwC projects that spending on hardware could increase from 70% currently to 93% in 2050. This should pave the way for sustained growth in Micron's business over the long run, especially as memory manufacturers focus on technological enhancements.

At the same time, the memory market is poised to remain undersupplied. Goldman Sachs estimates that the demand for dynamic random-access memory (DRAM) will exceed supply by 5% in 2026, and that gap could widen to 5.9% in 2027. Moreover, the new factories being built by memory manufacturers won't start volume production until 2029.