The Micron UBS price target raise from $535 to $1,625 on May 26 sent MU up nearly 20% the next session and pulled the entire semiconductor sector higher, but not every name dragged along deserves the ride.
| Ticker | Event / Metric | Key Number |
|---|---|---|
| MU | UBS price target raise | $535 → $1,625 (+204%) |
| MU | Market cap milestone, May 26 | Crossed $1 trillion for first time |
| WDC | YTD gain after sympathy rally | >200% |
| RMBS | YTD gain | >60% |
| ON | Sympathy rally, May 27 | +9% (3-month gain ~90%) |
| SOXX | Sector ETF move | +6% |
What the Micron UBS Price Target Actually Says
UBS analyst Timothy Arcuri lifted his Micron UBS price target by 204%, from $535 to $1,625, the highest on the Street. The next-closest analysts, per FactSet, were two firms tied at $1,100, per TIKR. The gap between Arcuri and the next bull is itself a story.
The call is primarily a multiple expansion thesis. Arcuri sees no reason Micron should trade at a significantly different P/E than Nvidia. His $1,625 target is built on roughly 15x next-twelve-months earnings. Nvidia currently trades at 21.4x, per FactSet, so the argument is that MU’s discount to NVDA will compress as HBM transitions from a cyclical commodity into a long-cycle infrastructure input.
UBS projects Micron EPS will exceed $100 through at least 2029. That EPS base, applied to a NVDA-like multiple, mathematically gets you to a $1 trillion-plus valuation. Micron crossed that threshold for the first time on May 26. Of the 44 analyst firms covering MU, 39 already rated it Buy or higher before the Arcuri note, with 4 at Hold and 1 at Sell.
The structural case rests on two pillars. High-bandwidth memory supply is concentrated among only three producers: Micron, Samsung, and SK Hynix. Hyperscalers facing HBM backlogs are locking in long-term agreements rather than spot purchasing. Micron’s Q1 FY2026 earnings call stated that HBM and advanced DRAM supply tightness is expected to continue well beyond calendar 2026, and management raised the fiscal 2026 capital expenditure budget by $2 billion to accelerate production capacity.
Western Digital and Rambus: Sympathy With Substance
Western Digital rallied 8% on the day of the Arcuri note, pushing its YTD gain past 200%. The same hyperscaler dynamics Arcuri applied to Micron’s HBM products map cleanly onto WDC’s hard disk drives. Hyperscalers are signing long-term supply agreements there too, and WDC’s 2026 production capacity is already committed.
The numbers back it up. WDC’s fiscal Q3 2026 report showed 45% year-over-year revenue growth and gross margins above 50%. Forward guidance on the Q3 earnings call called for Q4 revenue of $3.65 billion (plus or minus $100 million), gross margin of 51 to 52%, and EPS of $3.25, with management projecting greater than 25% exabyte growth CAGR. The balance sheet looks cleaner after the SanDisk spinoff: WDC’s Q3 10-Q filing shows total debt cut from $4.75 billion to $1.60 billion, with $1.92 billion in stock repurchases during the period.
Rambus is a different kind of play. The company licenses memory-interface IP, including the HBM4E Memory Controller launched in April, now the industry’s fastest. High-margin licensing revenue flows regardless of which memory manufacturer wins design slots. The stock is up more than 60% YTD and has reclaimed its 50-day moving average as support. The RSI moving into bullish territory after two months of consolidation between the 50-day and 200-day suggests the technical setup is improving.
Onsemi: Where the Micron UBS Price Target Logic Breaks Down
onsemi jumped 9% on May 27. The move is hard to justify on fundamentals. Automotive chips generated $797 million in Q1 2026 revenue, more than half of total company sales. Data center revenue is projected to double year-over-year in 2026, but that still puts it around $500 million out of a revenue base north of $6 billion. The Micron UBS price target thesis is built on HBM and AI infrastructure demand. onsemi’s business is mostly cyclical auto and industrial silicon.
The chart adds to the concern. ON shares have gained roughly 90% over three months. The MACD is signaling that bullish momentum is fading. Price is well above trend. That combination, extended valuation and weakening momentum, tends to resolve lower.
The Micron UBS price target upgrade is a legitimate structural call on HBM and data center storage. WDC and RMBS have real ties to the same demand cycle. ON does not. The next test for the whole group is Micron’s next earnings report, where any update on HBM contract volumes or 2027 pricing will either validate Arcuri’s multiple expansion thesis or give the market a reason to reconsider.
