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Side-by-side financial comparison of Ultra Clean Holdings, Inc. (UCTT) and West Pharmaceutical Services (WST). Click either name above to swap in a different company.

West Pharmaceutical Services is the larger business by last-quarter revenue ($805.0M vs $533.7M, roughly 1.5× Ultra Clean Holdings, Inc.). West Pharmaceutical Services runs the higher net margin — 16.4% vs -2.8%, a 19.2% gap on every dollar of revenue. On growth, West Pharmaceutical Services posted the faster year-over-year revenue change (7.5% vs 2.9%). Over the past eight quarters, West Pharmaceutical Services's revenue compounded faster (7.6% CAGR vs 1.7%).

Ultra Clean Holdings, Inc. is a leading global supplier of critical subsystems, ultra-high purity cleaning services, and precision process components for the semiconductor, advanced display, and life sciences sectors. It operates across North America, Asia, and Europe, serving top semiconductor fabs and high-tech equipment manufacturers to support advanced microelectronics production.

West Pharmaceutical Services, Inc. is a designer and manufacturer of injectable pharmaceutical packaging and delivery systems. Founded in 1923 by Herman O. West and J.R. Wike of Philadelphia, the company is headquartered in Exton, Pennsylvania. In its early years of development, West produced rubber components for packaging injectable drugs, providing a sterile environment for the producers of penicillin and insulin.

UCTT vs WST — Head-to-Head

Bigger by revenue
WST
WST
1.5× larger
WST
$805.0M
$533.7M
UCTT
Growing faster (revenue YoY)
WST
WST
+4.6% gap
WST
7.5%
2.9%
UCTT
Higher net margin
WST
WST
19.2% more per $
WST
16.4%
-2.8%
UCTT
Faster 2-yr revenue CAGR
WST
WST
Annualised
WST
7.6%
1.7%
UCTT

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
UCTT
UCTT
WST
WST
Revenue
$533.7M
$805.0M
Net Profit
$-15.0M
$132.1M
Gross Margin
12.2%
37.8%
Operating Margin
2.1%
19.5%
Net Margin
-2.8%
16.4%
Revenue YoY
2.9%
7.5%
Net Profit YoY
-500.0%
1.5%
EPS (diluted)
$-0.40
$1.82

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
UCTT
UCTT
WST
WST
Q1 26
$533.7M
Q4 25
$506.6M
$805.0M
Q3 25
$510.0M
$804.6M
Q2 25
$518.8M
$766.5M
Q1 25
$518.6M
$698.0M
Q4 24
$563.4M
$748.8M
Q3 24
$540.4M
$746.9M
Q2 24
$516.1M
$702.1M
Net Profit
UCTT
UCTT
WST
WST
Q1 26
$-15.0M
Q4 25
$-3.3M
$132.1M
Q3 25
$-10.9M
$140.0M
Q2 25
$-162.0M
$131.8M
Q1 25
$-5.0M
$89.8M
Q4 24
$16.3M
$130.1M
Q3 24
$-2.3M
$136.0M
Q2 24
$19.1M
$111.3M
Gross Margin
UCTT
UCTT
WST
WST
Q1 26
12.2%
Q4 25
15.2%
37.8%
Q3 25
16.1%
36.6%
Q2 25
15.3%
35.7%
Q1 25
16.2%
33.2%
Q4 24
16.3%
36.5%
Q3 24
17.3%
35.4%
Q2 24
17.1%
32.8%
Operating Margin
UCTT
UCTT
WST
WST
Q1 26
2.1%
Q4 25
2.2%
19.5%
Q3 25
2.1%
20.8%
Q2 25
-27.3%
20.1%
Q1 25
2.5%
15.3%
Q4 24
4.6%
21.3%
Q3 24
4.7%
21.6%
Q2 24
4.4%
18.0%
Net Margin
UCTT
UCTT
WST
WST
Q1 26
-2.8%
Q4 25
-0.7%
16.4%
Q3 25
-2.1%
17.4%
Q2 25
-31.2%
17.2%
Q1 25
-1.0%
12.9%
Q4 24
2.9%
17.4%
Q3 24
-0.4%
18.2%
Q2 24
3.7%
15.9%
EPS (diluted)
UCTT
UCTT
WST
WST
Q1 26
$-0.40
Q4 25
$-0.07
$1.82
Q3 25
$-0.24
$1.92
Q2 25
$-3.58
$1.82
Q1 25
$-0.11
$1.23
Q4 24
$0.36
$1.78
Q3 24
$-0.05
$1.85
Q2 24
$0.42
$1.51

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
UCTT
UCTT
WST
WST
Cash + ST InvestmentsLiquidity on hand
$323.5M
$791.3M
Total DebtLower is stronger
$601.9M
$202.8M
Stockholders' EquityBook value
$702.1M
$3.2B
Total Assets
$1.9B
$4.3B
Debt / EquityLower = less leverage
0.86×
0.06×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
UCTT
UCTT
WST
WST
Q1 26
$323.5M
Q4 25
$311.8M
$791.3M
Q3 25
$314.1M
$628.5M
Q2 25
$327.4M
$509.7M
Q1 25
$317.6M
$404.2M
Q4 24
$313.9M
$484.6M
Q3 24
$318.2M
$490.9M
Q2 24
$319.5M
$446.2M
Total Debt
UCTT
UCTT
WST
WST
Q1 26
$601.9M
Q4 25
$481.4M
$202.8M
Q3 25
$202.7M
Q2 25
$202.6M
Q1 25
$202.6M
Q4 24
$499.7M
$202.6M
Q3 24
$202.6M
Q2 24
$205.8M
Stockholders' Equity
UCTT
UCTT
WST
WST
Q1 26
$702.1M
Q4 25
$711.0M
$3.2B
Q3 25
$709.9M
$3.1B
Q2 25
$719.4M
$2.9B
Q1 25
$872.0M
$2.7B
Q4 24
$873.6M
$2.7B
Q3 24
$857.9M
$2.8B
Q2 24
$852.3M
$2.6B
Total Assets
UCTT
UCTT
WST
WST
Q1 26
$1.9B
Q4 25
$1.7B
$4.3B
Q3 25
$1.7B
$4.1B
Q2 25
$1.7B
$4.0B
Q1 25
$1.9B
$3.6B
Q4 24
$1.9B
$3.6B
Q3 24
$1.9B
$3.7B
Q2 24
$1.9B
$3.5B
Debt / Equity
UCTT
UCTT
WST
WST
Q1 26
0.86×
Q4 25
0.68×
0.06×
Q3 25
0.07×
Q2 25
0.07×
Q1 25
0.08×
Q4 24
0.57×
0.08×
Q3 24
0.07×
Q2 24
0.08×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
UCTT
UCTT
WST
WST
Operating Cash FlowLast quarter
$251.1M
Free Cash FlowOCF − Capex
$175.0M
FCF MarginFCF / Revenue
21.7%
Capex IntensityCapex / Revenue
9.5%
Cash ConversionOCF / Net Profit
1.90×
TTM Free Cash FlowTrailing 4 quarters
$468.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
UCTT
UCTT
WST
WST
Q1 26
Q4 25
$8.1M
$251.1M
Q3 25
$100.0K
$197.2M
Q2 25
$29.2M
$177.1M
Q1 25
$28.2M
$129.4M
Q4 24
$17.1M
$190.1M
Q3 24
$14.9M
$180.1M
Q2 24
$23.2M
$165.0M
Free Cash Flow
UCTT
UCTT
WST
WST
Q1 26
Q4 25
$-2.0M
$175.0M
Q3 25
$-10.9M
$133.9M
Q2 25
$12.4M
$101.9M
Q1 25
$15.8M
$58.1M
Q4 24
$-200.0K
$85.2M
Q3 24
$-300.0K
$98.8M
Q2 24
$10.2M
$64.8M
FCF Margin
UCTT
UCTT
WST
WST
Q1 26
Q4 25
-0.4%
21.7%
Q3 25
-2.1%
16.6%
Q2 25
2.4%
13.3%
Q1 25
3.0%
8.3%
Q4 24
-0.0%
11.4%
Q3 24
-0.1%
13.2%
Q2 24
2.0%
9.2%
Capex Intensity
UCTT
UCTT
WST
WST
Q1 26
Q4 25
2.0%
9.5%
Q3 25
2.2%
7.9%
Q2 25
3.2%
9.8%
Q1 25
2.4%
10.2%
Q4 24
3.1%
14.0%
Q3 24
2.8%
10.9%
Q2 24
2.5%
14.3%
Cash Conversion
UCTT
UCTT
WST
WST
Q1 26
Q4 25
1.90×
Q3 25
1.41×
Q2 25
1.34×
Q1 25
1.44×
Q4 24
1.05×
1.46×
Q3 24
1.32×
Q2 24
1.21×
1.48×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

UCTT
UCTT

Products$465.7M87%
Services$68.0M13%

WST
WST

Proprietary Products$661.8M82%
Contract Manufactured Products$143.2M18%
Affiliated Entity$3.3M0%

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