Ultra Clean Holdings (UCTT) Earnings: Q3 Fiscal 2026 Results

The quarter ended September 25, 2026 and Ultra Clean Holdings published the results on October 27, 2026. Revenue and diluted EPS are shown against Q3 fiscal 2025, the same quarter a year earlier, which takes seasonal swings out of the comparison. Ultra Clean Holdings reports EPS two ways: GAAP, under the accounting rules every US filer follows, and non-GAAP, which leaves out items the company considers outside its operating results. The release reconciles the two, and when they diverge, the reconciliation says why.

• Ultra Clean's fiscal quarters end on a Friday: Q3 fiscal 2026 ended September 25, 2026 and Q3 fiscal 2025 ended September 26, 2025.
• The release's commentary compares Q3 with the prior quarter (Q2 fiscal 2026), not the year-ago quarter; the year-ago figures here are from its income statement and reconciliation tables.

Source: Ultra Clean Q3 fiscal 2026 results, October 27, 2026. Also in the Form 10-Q for the quarter ended September 25, 2026. Figures as reported; checked against the release on November 10, 2026.

How Ultra Clean Holdings splits revenue in its own release, under its own labels, for Q3 fiscal 2026 against Q3 fiscal 2025. Indented lines are parts of the line above them.

• Ultra Clean Holdings's Products revenue was $682 million in Q3 fiscal 2026, up 53% from $445 million in Q3 fiscal 2025, 90% of total revenue.
• Ultra Clean Holdings's Services revenue was $77.1 million in Q3 fiscal 2026, up 19% from $65.0 million in Q3 fiscal 2025, 10% of total revenue.

Segment lines are the figures writers cite most often, because they show where the growth in a quarter came from. Companies redraw their segments from time to time and restate the prior year to match, so a year-ago figure here can differ from the one printed a year ago. When that has happened, the note above says so.

From the earnings release

In its Q3 fiscal 2026 release, Ultra Clean Holdings said:

“The Company expects revenue in the range of $800 million to $860 million.”

“The Company expects GAAP diluted net income per share to be between $1.02 and $1.26, and non-GAAP diluted net income per share to be between $1.11 and $1.35.”

Source: Ultra Clean Q3 2026 release, Oct 27, 2026.

This is the company's own guidance as of Oct 27, 2026, quoted as given. Walnut does not make forecasts of its own. Analyst estimates for the coming quarters are on the UCTT forecast page.

Revenue and diluted EPS for the last 5 quarters. Each date links to that quarter's release.

GAAP revenue and diluted EPS, each as first reported in that quarter's release.

We do not hold a confirmed date for Ultra Clean Holdings's next report. Companies post the date on their investor relations site a few weeks ahead, usually with the time of the conference call.

Each quarter keeps its own page with the figures as reported, so a link to one stays pointed at the same numbers after the next report.

• Q3 fiscal 2026 (this page), reported Oct 27, 2026

Ultra Clean Holdings reported record revenue of $759.0 million in Q3 fiscal 2026, up 49% from $510.0 million a year earlier and 18% from Q2. Products, the subsystems, components and parts it builds for semiconductor equipment makers, brought in $681.9 million. Services, its tool chamber parts cleaning, coating and micro-contamination analysis business, added $77.1 million. (Ultra Clean Q3 2026 release, Oct 27, 2026)

Ultra Clean said Products revenue rose because of higher customer demand from an overall market improvement in the semiconductor industry, and Services rose on higher demand across its customer base. Products grew to 89.8% of total revenue from 87.3% a year earlier. (Ultra Clean Form 10-Q, Q3 fiscal 2026, Oct 28, 2026)

Ultra Clean depends on two customers. Lam Research accounted for 38.8% of Q3 fiscal 2026 revenue and Applied Materials for 22.3%, 61.1% together, against 59.9% a year earlier. In fiscal 2025 the top two customers were 58.7% of revenue. (Ultra Clean Form 10-Q, Q3 fiscal 2026, Oct 28, 2026; Ultra Clean Form 10-K, fiscal 2025, Feb 23, 2026)

By shipping destination, Singapore was the largest market at $225.2 million, followed by the United States at $163.9 million and Malaysia at $129.5 million, which was up from $19.3 million a year earlier. International revenue was $595.1 million, up 52.8%, against 35.9% growth in the United States. (Ultra Clean Form 10-Q, Q3 fiscal 2026, Oct 28, 2026)

Ultra Clean Holdings earned GAAP diluted EPS of $0.85 in Q3 fiscal 2026, against a loss of $0.24 a year earlier, and non-GAAP EPS of $1.15, against $0.24. Its non-GAAP figure excludes amortization of intangible assets ($6.8 million), stock-based compensation ($6.9 million), restructuring charges, legal-related costs, unrealized foreign exchange losses ($2.6 million) and the tax effect of those items. (Ultra Clean Q3 2026 release, Oct 27, 2026)

Ultra Clean says its GAAP tax expense is generally higher than its non-GAAP figure mainly because of U.S. losses with full federal and state valuation allowances. The GAAP effective tax rate was 20.2% in Q3 fiscal 2026 and the non-GAAP rate 20.0%; a year earlier, on $0.6 million of pre-tax income, the GAAP provision was $8.7 million, including an $8.6 million valuation allowance effect. (Ultra Clean Q3 2026 release, Oct 27, 2026)

Diluted shares were 46.2 million, against 45.4 million a year earlier. Ultra Clean issued $600.0 million of 0.0% Convertible Notes due 2031 in fiscal 2026 and bought capped calls; its non-GAAP share count uses the capped call cap price. In the first nine months it repurchased 0.7 million shares for $40.3 million in a privately negotiated transaction and none in Q3. (Ultra Clean Q3 2026 release, Oct 27, 2026; Ultra Clean Form 10-Q, Q3 fiscal 2026, Oct 28, 2026)

Diluted EPS divides net income by the weighted average number of shares outstanding in the quarter, plus the shares that options and other equity awards could add. Buybacks shrink that count and lift EPS for the same profit; share issuance and stock awards enlarge it.

Ultra Clean Holdings gives a one-quarter outlook in each release. For Q4 fiscal 2026 it expects revenue of $800 million to $860 million, GAAP diluted EPS of $1.02 to $1.26 and non-GAAP diluted EPS of $1.11 to $1.35. It does not reconcile the non-GAAP EPS guidance, saying the geographic mix of earnings, which drives its tax rate, cannot be reasonably predicted. (Ultra Clean Q3 2026 release, Oct 27, 2026)

A consensus figure is the average of the models published by the analysts who cover Ultra Clean Holdings, collected by a data provider and revised up to the day of the report. A quarter that lands above it says how expectations were set as much as how the business did, and the share price on the day also reflects the guidance and the lines no consensus covers.

The consensus figures on this page are Yahoo Finance's, as pulled on the date shown. Each comes with the number of analysts behind it; the smaller that number, the more one revised estimate can move the average.

The figures below are the ones Ultra Clean Holdings's own release and filings put weight on for Q3 fiscal 2026, with the latest reported value for each.

What the quarter means for a holding is a separate question from what it reported. The case for and against owning UCTT is on is UCTT a buy or a sell?, what analysts expect next is on the UCTT forecast, and what the company does is on the Ultra Clean Holdings (UCTT) stock page.

Every number on this page can be traced to a document Ultra Clean Holdings published. Checking one takes a couple of minutes, and it is worth doing before you quote a figure anywhere.

• The results release is the document linked in the source line above. Companies publish it on their investor relations site at the moment results go out, and it carries the headline tables: revenue, operating income, net income and EPS for the quarter and the year-ago quarter.
• The same release is filed with the SEC as Exhibit 99.1 to a Form 8-K under Item 2.02, usually on the day of the report. The SEC copy does not change after the fact, which makes it the safer thing to link when you cite a number.
• The quarterly report (Form 10-Q) follows within a few weeks and carries the full financial statements, the segment note and management's discussion of what changed. The fourth quarter is covered by the annual report (Form 10-K) instead.
• Restated comparisons are flagged in the notes on this page. When a company redraws its segments or changes how it adjusts EPS, it restates the year-ago column, so the year-ago figure in a new release can differ from the one printed a year ago. This page always uses the comparison in the newer release, because that is the like-for-like one.

A walk-through of every line in a release, with what each one tells you, is in how to read an earnings report.