Micron Technology (MU) achieved a historic milestone on Friday, closing at $971 per share and pushing its market capitalization above $1 trillion for the first time. The memory-chip maker's stock surged 29.3% from its May 22 close, marking one of its strongest weekly performances this year. The rally was fueled by relentless demand for artificial intelligence (AI) memory and a significant price target upgrade from UBS, which raised its target to $1,625 from $535, citing new long-term supply deals and rising AI demand.
The company's market cap reached approximately $1.11 trillion at Friday's close, according to market data. This valuation shift reflects a broader re-rating of Micron from a cyclical memory stock to a key AI supplier. High-bandwidth memory (HBM), a fast stacked memory used in AI chips, remains in tight supply, positioning Micron alongside other AI beneficiaries like Nvidia (NVDA).
Options markets are pricing in a potential 10% swing in Micron's stock price by the end of next week, as traders brace for heightened volatility ahead of the company's earnings report on June 24. The stock's recent rally has been supported by strong tech sector performance, with the S&P 500, Nasdaq, and Dow Jones Industrial Average all closing at record highs on Friday, led by technology shares after Dell's earnings.
UBS's upgrade highlighted Micron's new long-term supply contracts, which guarantee volume and partially lock in prices. The brokerage noted that these agreements could stabilize Micron's earnings and argued that the stock should trade more like Nvidia on a price-to-earnings basis if AI demand and contract visibility continue to improve. B. Riley Wealth chief market strategist Art Hogan commented that "Micron sits at the center" of growing demand for memory, as investors expand beyond early AI stocks to include chip and storage suppliers essential for data center growth.
However, competitive pressures are mounting. Samsung Electronics began shipping samples of its faster 12-layer HBM4E memory chips on Friday, claiming a 20% speed improvement over earlier HBM4 models. Samsung aims to regain market share from SK Hynix and Micron in the AI memory segment. According to Counterpoint Research, SK Hynix held a 57% share of the HBM market in the fourth quarter of 2025, followed by Samsung at 22% and Micron at 21%. KB Securities-Jefferies head of research Jeff Kim noted that early movers in HBM typically secure the majority of orders, potentially intensifying competition.
Despite the optimism, some analysts caution that investors may have gotten ahead of themselves. Options pricing suggests a 10% swing in either direction, and risks such as Samsung closing the qualification gap, cloud buyers easing orders, or memory prices weakening could pressure Micron's new premium valuation. The stock, which traded at $971 on Friday, up 5.1% for the session, still trades on the same fundamental setup: tight AI memory supply, rising analyst targets, and a shifting perception from a cyclical play to a growth AI supplier.
Micron's earnings report on June 24 will be a critical catalyst. If the company delivers strong results and guidance, the stock could maintain its elevated valuation. Conversely, any signs of slowing demand or increased competition could trigger a sharp correction. For now, the market remains euphoric about AI, but the coming week will test whether buyers stick with Micron after the weekend.
