Micron reclaims $1 trillion valuation on broad AI stock rally
Micron Technology surged past the $1 trillion mark, reaching $1.04 trillion, as AI-driven demand tightened memory supply. CoreWeave raised capex to $39 billion and Lumentum doubled revenue, while Intel cited a two-year supply shortage.

*this image is generated using AI for illustrative purposes only.
Micron Technology Inc. (NASDAQ: MU) shares rose over 7% on Wednesday to close at $932.46, lifting the company’s market value to $1.04 trillion. This valuation ranks Micron as the 15th largest company in the world by market capitalization.
The rally was driven by three primary factors reflecting sustained demand in the artificial intelligence sector.
First, Singapore’s state fund Temasek is reported to be planning stakes in Samsung Electronics Co. Ltd. (OTC: SSNLF) and SK Hynix Inc. (NASDAQ: SKHY). Second, strong earnings from AI infrastructure players signaled continued expansion in data center buildouts. CoreWeave Inc. (NASDAQ: CRWV) raised its 2026 capital spending plan to as much as $39 billion, with its shares rising 18%. Lumentum Holdings Inc. (NASDAQ: LITE) more than doubled its revenue to $1.01 billion.
Third, Intel Corp.’s (NASDAQ: INTC) chief executive stated that memory makers are sold out for two years. The Roundhill Memory ETF (CBOE: DRAM) jumped 7.7% in tandem with the broader sector movement.
What the Numbers Show
The simultaneous rise in Micron’s valuation and the Roundhill Memory ETF highlights a concentrated market bet on memory supply constraints. While CoreWeave increased its capital spending guidance to $39 billion for 2026, Lumentum’s revenue doubling to $1.01 billion suggests that component suppliers are already capturing significant value from this infrastructure expansion. Intel’s comment on a two-year sell-out period provides a qualitative ceiling on supply, reinforcing the pricing power implied by these financial figures.
| Metric | Value |
|---|---|
| Micron Share Price | $932.46 |
| Market Cap | $1.04 trillion |
| CoreWeave 2026 CapEx Plan | Up to $39 billion |
| Lumentum Revenue | $1.01 billion |
| Roundhill Memory ETF Gain | 7.7% |
How might Temasek's strategic investments in Samsung and SK Hynix reshape the competitive landscape for memory supply contracts with major AI infrastructure players?
Given Intel's assertion of a two-year sell-out period, what specific capacity expansion initiatives are Micron, Samsung, and SK Hynix prioritizing to alleviate these supply constraints by 2026?
With CoreWeave raising its 2026 capital spending to $39 billion, how will this surge in demand impact the pricing power and profit margins of component suppliers like Lumentum in the near term?

































