Ultra Clean Holdings, Inc.
UCTT Technology Semiconductor Equipment & Materials
Ultra Clean Holdings, Inc.’s revenue for fiscal 2025 (year ended December 2025) was $2.1 billion, down 2.08% from fiscal 2024. In the quarter to June 2026, revenue grew 24.3%, EPS grew 105.3%, free cash flow fell 558.4% and total debt rose 25.3%, each against the same quarter a year earlier.
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Ultra Clean Holdings, Inc. (UCTT) Piotroski F-score
Ultra Clean Holdings, Inc.'s Piotroski F-score for fiscal 2025 is 4 out of 9: 4 of nine tests of profitability, leverage and efficiency passed, down from 7 in fiscal 2024.
Piotroski F-score, annual
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Annual newest first
| Period | Piotroski F-score | Change (points) |
|---|---|---|
| FY2025 | 4 | (3.00) |
| FY2024 | 7 | 2.00 |
| FY2023 | 5 | 0.00 |
| FY2022 | 5 | 0.00 |
| FY2021 | 5 | (3.00) |
| FY2020 | 8 | 4.00 |
| FY2019 | 4 | 0.00 |
| FY2018 | 4 | (2.00) |
| FY2017 | 6 | (1.00) |
| FY2016 | 7 | — |
How fiscal 2025’s score is made up
| Test | This year | Year before | Result | Points |
|---|---|---|---|---|
| Positive return on assets | (9.93%) | 1.25% | Fail | 0 |
| Positive operating cash flow | 65.60m | 65.00m | Pass | 1 |
| Rising return on assets | (9.93%) | 1.25% | Fail | 0 |
| Cash flow above net income | 246.80m | 41.30m | Pass | 1 |
| Falling long-term leverage | 0.26 | 0.25 | Fail | 0 |
| Rising current ratio | 3.19 | 2.89 | Pass | 1 |
| No new shares issued | 45,300,000 | 44,900,000 | Fail | 0 |
| Rising gross margin | 15.72% | 16.99% | Fail | 0 |
| Rising asset turnover | 1.13 | 1.11 | Pass | 1 |
| Piotroski F-score | Mixed | 4 | ||
How the Piotroski F-score works
One point for each of nine tests, this fiscal year against the one before: positive return on assets, positive operating cash flow, rising return on assets, cash flow above net income, falling long-term leverage, a rising current ratio, no new shares issued, a rising gross margin and rising asset turnover. The ratios are the ones on this site, so each can be checked.
Joseph Piotroski (2000) called 8–9 high and 0–1 low; reading it in three bands is the common convention:
| 7–9 | Strong — most fundamentals improved |
|---|---|
| 4–6 | Mixed |
| 0–3 | Weak — most fundamentals deteriorated |
Where this differs from the paper: return on assets is on average rather than beginning-of-year assets, and weighted basic shares stand in for shares issued. The score is shown only when all nine tests can be worked out, which takes three fiscal years; banks and insurers, which report no current assets or gross profit, have none.
Piotroski F-score against peers
| Company | Piotroski F-score |
|---|---|
| IPGP IPG Photonics Corporation compare | 8 |
| COHU Cohu, Inc. compare | 5 |
| VECO Veeco Instruments Inc. compare | 5 |
| AMBA Ambarella, Inc. compare | 5 |
| ACLS Axcelis Technologies, Inc. compare | 5 |
| UCTT Ultra Clean Holdings, Inc. | 4 |
| ICHR Ichor Holdings, Ltd. compare | 4 |
| AXTI AXT Inc compare | 3 |
| AEHR Aehr Test Systems compare | 3 |
What Piotroski F-score is
The Piotroski F-Score tells an investor how many signs of improving profitability, funding and efficiency a company shows against a year earlier.
One point for each of nine tests against a year earlier: positive return on assets, positive operating cash flow, rising return on assets, cash flow above net income, falling long-term leverage, rising current ratio, no new shares issued, rising gross margin, and rising asset turnover