Ultra Clean Holdings
Makes and cleans subsystems that Applied Materials and Lam Research put inside chip-making tools.
UCT's business rests on two customers staying loyal through long qualification cycles, while its stock price runs on an AI capex story that already reversed once before.
Ultra Clean makes specialized cleaning systems and services for companies like Applied Materials and Lam Research that build chip-making equipment. The company is hard to replace because chip makers have spent years testing and approving these systems, and switching would take a long time and cost a lot of money. But Ultra Clean is in trouble right now: it lost $181 million last year, its profit margins got thinner, and its stock crashed 28% in one day when China's chip demand dropped in early 2025. The one thing that could change everything is whether Applied Materials and Lam Research keep ordering at current levels; if they cut back because AI spending slows down, or if they decide to buy from a different supplier like Ichor instead, Ultra Clean could face much worse results.
Applied Materials or Lam Research earnings commentary on supplier mix or in-sourcing. Would reveal if either major customer is shifting work toward Ichor, MKS Instruments, or internal capacity.
UCT Services/QuantumClean division revenue growth reported in quarterly filings. Indicates whether UCT is diversifying beyond its two-customer concentration.
- FY2025 revenue $2,054.0M
- FY2025 gross margin 15.7%, down from 17.0%
- FY2025 net loss $181.2M incl. $151.1M impairment
- Revenue concentration in Applied Materials and Lam Research, majority of sales from two customers.
- Stretched valuation: 40-45x forward P/E after 202-319% one-year stock gain as of 2026-07-24.
- Securities class action alleging China demand misrepresentation, class period May 2024 to Feb 2025.
- CFO transition (Keogh starts Aug 5, 2026) landing right after Q2 earnings amid growth push.
- US tariff hikes of 10-12.5% effective July 2026 on ~60 economies could hit Asia-heavy manufacturing footprint.
| Rival | Direction | Evidence |
|---|---|---|
| Ichor Holdings | contesting | Near-duopoly with UCT in outsourced gas and fluid delivery subsystems, as of 2026-04 |
| MKS Instruments | contesting | Grouped with UCT and Ichor as key WFE subsystem suppliers to AMAT and Lam, 2026-06-17 |
- Is Ultra Clean Holdings profitable in 2026?
- FY2025 (ended Dec 26, 2025) UCTT posted a $181.2M net loss driven by a $151.1M goodwill impairment, versus $23.7M net income the prior year. Q1 2026 turned positive with EPS of $0.31 beating the $0.27 estimate, and Q2 2026 guidance ($0.44-$0.60 EPS) points toward continued recovery.
- What is Ultra Clean Holdings' biggest competitor?
- Ichor Holdings (ICHR) is UCT's closest rival, forming a near-duopoly with UCT in outsourced gas and fluid delivery subsystems for semiconductor equipment as of April 2026. MKS Instruments is also grouped as a key WFE subsystem competitor to both Applied Materials and Lam Research, per June 2026 analysis.
- Is UCTT stock overvalued after its 2026 rally?
- UCTT traded around $96-$101 on July 24, 2026 with a 52-week range of $21.28-$144.22, a 202-319% year-over-year gain, and a forward P/E of roughly 40-45x. Motley Fool flagged the valuation as stretched on July 24, 2026, suggesting investors wait for a pullback.
- Could AI replace Ultra Clean Holdings' business?
- No; UCT's core work is physical ultra-high-purity manufacturing and cleaning for semiconductor fab equipment, which cannot be replicated by AI software. AI is instead a demand driver: rising AI chip capex from customers has pushed UCT's Q2 2026 revenue guidance to $565-605M, up double digits year over year.
- Is Ultra Clean Holdings a safe company to join in 2026?
- Headcount was roughly 6,948 as of December 26, 2025, up 2.58% year over year per company-derived data, suggesting no mass layoffs. However, the company just took a $181.2M FY2025 net loss and is mid-transition with a new CFO, Michael Keogh, starting August 5, 2026.
- Who owns Ultra Clean Holdings?
- Ultra Clean Holdings (Nasdaq: UCTT) is a publicly traded company with no parent; institutional investors held about 96% of shares and insiders about 1.8% as of July 24, 2026, per a MarketBeat filing on Allspring Global Investments' stake.
- 2026-08-05New CFO Michael Keogh scheduled to start, succeeding Sheri Savage
- 2026-08-03Q2 2026 earnings due after market close
- 2026-07-08Ultra Clean appoints Michael Keogh as CFO under 'UCT 3.0' strategy
- 2026-03-27Q1 2026 revenue $533.7M, EPS $0.31, beats consensus
- 2026-02-23FY2025 results: $2,054.0M revenue, $181.2M net loss, 15.7% gross margin
- 2025-12-26FY2025 fiscal year ends
- 2025-05-22At least one securities class action over China demand claims voluntarily dismissed
- 2025-02-01UCTT stock drops over 28% in one day on China demand softness disclosure
- Ultra Clean Reports Fourth Quarter and Full Year 2025 Financial Results (2026-02-23)
- Ultra Clean (NASDAQ:UCTT) Shares Gap Up (2026-07-21)
- Ultra Clean (UCTT) Earnings Date and Reports 2026 (2026-07-20)
- Ultra Clean Announces Q2 2026 Earnings Date and Conference Call (2026-07-07)
- Ultra Clean Holdings (UCTT) Revenue 2005-2026 (2026-07-13)
- Ultra Clean Holdings (UCTT) Surged on Strong Results and Improving Semiconductor Spending (2026-07-23)
- This AI Stock Needs to Cool Off After Gaining More Than 200% Year to Date (2026-07-24)
- Ultra Clean Holdings, Inc. $UCTT Shares Purchased by Allspring Global Investments Holdings LLC (2026-07-23)
- Ultra Clean Holdings (UCTT) Number of Employees (2026-06-21)
- Ultra Clean Holdings Number of Employees 2026 (2026-06-29)
- Ultra Clean Appoints Michael Keogh as Chief Financial Officer (2026-07-08)
- Ultra Clean Holdings ($UCTT) Misleading China Demand Case (2025-05-22)