NEW YORK, December 31, 2025, 16:19 ET — After-hours
- Micron shares fell 2.3% in the regular session, underperforming a broader dip in semiconductor stocks.
- A Form 4 filing showed CFO Mark Murphy moved 35,000 shares into an estate-planning trust, with no cash changing hands.
- Traders head into 2026 watching U.S. data, the Fed’s next meeting, and signals of new DRAM supply from China.
Micron Technology Inc (MU) shares slid 2.3% on Wednesday, ending the year’s final regular session at $285.81. The stock traded between $284.19 and $293.91 on the day.
The late-day pullback matters because Micron has been a bellwether for the memory-chip boom tied to artificial-intelligence servers, and year-end positioning can amplify moves when liquidity is thin. A softer tone in semiconductors can spill over quickly as investors rebalance risk into 2026.
U.S. stocks slipped in holiday-thin trade, and markets are set to shut on Thursday for New Year’s Day. “It’s perfectly fine in any bull market to have moments of cost,” said Giuseppe Sette, co-founder and president of Reflexivity, pointing to profit-taking when liquidity is low. Storage-focused chip names such as Micron have more than tripled in value in 2025. Reuters
The iShares Semiconductor ETF fell 1.2% in the session, while Nvidia, a key end-market signal for AI hardware demand, slipped 0.5%.
A regulatory filing dated Dec. 29 showed Micron CFO Mark Murphy transferred 35,000 shares into a grantor retained annuity trust, a type of estate-planning vehicle. The filing recorded the transfer at $0.00 a share. Micron Technology
Investors are also tracking the competitive backdrop after China’s ChangXin Memory Technologies, or CXMT, disclosed plans to raise 29.5 billion yuan ($4.22 billion) in a Shanghai IPO to fund DRAM expansion. CXMT said it is investing heavily in high-bandwidth memory and aims to begin production by end-2026 at a Shanghai packaging facility. CXMT held about 4% of the global DRAM market in the second quarter, while Samsung Electronics, SK Hynix and Micron together controlled more than 90%, data cited in the prospectus showed. Reuters
DRAM, or dynamic random access memory, is the short-term working memory that sits close to processors. High-bandwidth memory (HBM) is a stacked form of DRAM designed to move data faster for AI accelerators.
For Micron, the near-term focus remains on whether AI-driven memory tightness holds into 2026 without prompting a supply response that cools pricing. Traders are also watching customer spending on data-center buildouts and any shifts in contract pricing for DRAM and NAND, the flash memory used in storage devices.
Before the next session, U.S. markets take a break for New Year’s Day, leaving investors to gauge whether 2026 opens with fresh risk-taking or more profit-taking in semiconductors.
Micron has not yet posted a date for its next earnings call on its investor-relations calendar, but Yahoo Finance’s earnings calendar lists the next report for March 18, 2026, after the close. Micron Technology
The next macro catalysts land quickly: the U.S. Employment Situation report for December is scheduled for Jan. 9 at 8:30 a.m. ET, and the December consumer price index is due Jan. 13. The Federal Reserve’s next policy meeting is set for Jan. 27–28. Bureau of Labor Statistics
On the chart, traders point to resistance near the day’s $294 area and a support band around the mid-$280s after Wednesday’s dip. A decisive break either way can draw systematic flows as liquidity returns in early January.
For now, Micron’s year-end slide looks more like positioning than a change in fundamentals, but the competition and policy backdrop sets a high bar for the stock’s next leg.
