NEW YORK, January 2, 2026, 02:49 ET — Market closed
- Micron shares last closed down 2.5% in the final session of 2025 after a broad pullback in U.S. tech.
- Investors are tracking high-bandwidth memory (HBM) competition after Samsung touted progress on its next-generation HBM4 chips.
- China’s CXMT has filed for a Shanghai IPO to fund DRAM expansion, adding to supply-watch concerns for the memory cycle.
Micron Technology (MU.O) shares head into the first U.S. trading session of 2026 after sliding in the year’s final session, as investors locked in gains in mega-cap tech and chip names.
The timing matters. Micron was among the standout “AI trade” beneficiaries in 2025, and the year’s first session often brings portfolio rebalancing that can amplify moves, especially in high-momentum stocks.
Micron’s core products are memory chips, and the memory cycle can turn fast. Traders are watching whether demand for AI-linked high-bandwidth memory stays ahead of supply — and whether new capacity plans elsewhere start to bite.
Micron last closed at $285.41 on Wednesday, down $7.21, or 2.46%. The stock traded between $284.19 and $293.91 during the session, with about 17.6 million shares changing hands, LSEG data showed.
The decline came as Wall Street ended the final trading day of 2025 lower, with technology among the bigger sector drags, even as the major indexes posted double-digit gains for the year, Reuters reported. Reuters also noted storage-chip makers including Micron had more than tripled in value in 2025.
Competitive headlines also stayed in focus overnight. Samsung Electronics co-CEO Jun Young-hyun said customers had praised the competitiveness of its next-generation HBM4 chips, while SK Hynix CEO Kwak Noh-Jung said competition was intensifying, Reuters reported. Counterpoint Research data cited by Reuters put SK Hynix at a 53% share of the HBM market in the third quarter of 2025, followed by Samsung at 35% and Micron at 11%.
HBM, short for high-bandwidth memory, is a stacked form of DRAM — dynamic random access memory — used alongside AI processors to move data faster. Leadership in HBM can matter disproportionately because it feeds directly into pricing power and margins for suppliers.
China’s ChangXin Memory Technologies (CXMT) added another thread for investors tracking supply. CXMT said it plans to raise 29.5 billion yuan ($4.22 billion) through a Shanghai IPO to upgrade production lines and technology, according to a prospectus cited by Reuters. The filing also said CXMT held a 4% share of the global DRAM market in the second quarter, with Micron, Samsung and SK Hynix controlling more than 90%, based on Omdia data.
Micron’s most recent company update came in mid-December, when it reported fiscal first-quarter results and issued guidance. The company said it expected second-quarter revenue of $18.7 billion, plus or minus $400 million, and said its board declared a quarterly dividend of $0.115 per share payable on January 14.
Chief Executive Sanjay Mehrotra also flagged supply constraints, saying “the aggregate industry supply will remain substantially short of the demand for the foreseeable future,” while pointing to AI data center build-out plans. Micron said it planned to increase fiscal 2026 capital spending to about $20 billion to support HBM and other supply needs. Micron Technology
That sets up the near-term debate for the stock: whether Micron’s tight-supply narrative holds as rivals talk up next-generation roadmaps and as China pushes to build a domestic memory supply chain.
Before the next session gets underway, traders will be watching a final read on U.S. manufacturing PMI data due Friday, along with next week’s U.S. jobs report on January 9 and the Federal Reserve’s January 27–28 policy meeting — events that can move bond yields and, in turn, high-growth tech valuations.
On the chart, attention is on whether Micron can hold above Wednesday’s $284.19 low and recover the $290–$294 area where it traded earlier in the day. A Yahoo Finance note this week put Micron near a 52-week high around $298, underscoring how little room the stock has for missteps after its 2025 run.
