Ultra Clean HoldingsUCTT +11.37%66 PB Ratio is 8.61 as of Jun. 25, 2026, which is 363% above its 10-year median of 1.86. GuruFocus rates UCTT with a GF Score™ of 66/100 and a GF Value™ of $38.25 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 1,000 Semiconductors companies, Ultra Clean Holdings ranks worse than 76.3% on this metric.
The historical rank and industry rank for Ultra Clean Holdings's PB Ratio or its related term are showing as below:
UCTT'
s PB Ratio Range Over the Past 10 Years
Min: 0.66 Med: 1.86 Max: 8.65
Current: 8.61
During the past 13 years, Ultra Clean Holdings's highest PB Ratio was 8.65. The lowest was 0.66. And the median was 1.86.
UCTT's PB Ratio is ranked worse than 76.3% of 1000
companies
in the Semiconductors industry
Industry Median: 3.82
vs UCTT: 8.61
During the past 12 months, Ultra Clean Holdings's average Book Value Per Share Growth Rate was -27.50% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -7.30% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 2.60% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 12.20% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Ultra Clean Holdings was 115.20% per year. The lowest was -17.60% per year. And the median was 12.90% per year.
Back to Basics: PB Ratio
Ultra Clean Holdings (NAS:UCTT) PB Ratio Explanation
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Ultra Clean Holdings PB Ratio Related Terms
Ultra Clean Holdings PB Ratio Historical Data
* Premium members only.
The historical data trend for Ultra Clean Holdings's PB Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Semiconductor Equipment & Materials subindustry, Ultra Clean Holdings's PB Ratio, along with its competitors' market caps and PB Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Ultra Clean Holdings PB Ratio vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Ultra Clean Holdings's PB Ratio distribution charts can be found below:
* The bar in red indicates where Ultra Clean Holdings's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Ultra Clean Holdings (UCTT) has a PB Ratio of 8.61 as of Jun. 25, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Ultra Clean Holdings and its competitors. This is 363% above median its historical median of 1.86. Over the past decade, Ultra Clean Holdings' PB Ratio has ranged from 0.66 to 8.65. According to the industry distribution chart, Ultra Clean Holdings ranks #763 out of 1000 companies in the Semiconductors industry, placing it in the top 76.3%.
Is Ultra Clean Holdings' PB Ratio too high?
Ultra Clean Holdings' current PB Ratio of 8.61 is 363% above median its 10-year median of 1.86. Over the past 10 years, this metric has ranged from a low of 0.66 to a high of 8.65. The Semiconductors industry median PB Ratio is 3.82. Ultra Clean Holdings' value of 8.61 is 125.4% above this industry median. Based on the distribution chart, Ultra Clean Holdings ranks #763 out of 1000 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Ultra Clean Holdings has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Ultra Clean Holdings' PB Ratio compare to VECO and AMBA?
According to the Semiconductors industry distribution chart, Ultra Clean Holdings ranks #763 out of 1000 companies for PB Ratio. This places Ultra Clean Holdings in the lower half of its industry. The industry median PB Ratio is 3.82. Ultra Clean Holdings' value of 8.61 is 125.4% above this benchmark. Historically, Ultra Clean Holdings' own PB Ratio has ranged from 0.66 to 8.65 over the past decade. While the company's 10-year median is 1.86 vs. the industry median of 3.82, Ultra Clean Holdings has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PB Ratio for a Semiconductors company?
The median PB Ratio among Semiconductors companies is 3.82, based on 1,000 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Ultra Clean Holdings's current PB Ratio of 8.61 is 125.4% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Ultra Clean Holdings and its competitors. For the Semiconductors industry, the median PB Ratio is 3.82 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ultra Clean Holdings's current PB Ratio is 8.61, which is 363% above median its own 10-year median of 1.86. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ultra Clean Holdings stock overvalued right now?
Based on GuruFocus' analysis, Ultra Clean Holdings (UCTT) is currently considered Significantly Overvalued. The stock's GF Value™ is $38.25, compared to a current price of $120.66 — trading 215.5% above its estimated fair value. The current PB Ratio is 8.61, which is 363% above median its 10-year median of 1.86 and 125.4% above the Semiconductors industry median of 3.82. Ultra Clean Holdings' overall GF Score™ is 66/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Ultra Clean Holdings (UCTT), the current PB Ratio is 8.61 as of Jun. 25, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Ultra Clean Holdings (UCTT) Overvalued in 2026?
Based on GuruFocus' analysis, Ultra Clean Holdings stock appears to be overvalued.
The current stock price of $120.66 is trading 215.5% above its estimated GF Value™ of $38.25.
GuruFocus considers Ultra Clean Holdings to be Significantly Overvalued.
Key valuation signals for UCTT:
PB Ratio: 8.61 (363% above median its 10-year median of 1.86)
GF Value™: $38.25 vs. price of $120.66 (215.5% above fair value)
Industry Position: 125.4% above the Semiconductors median (#763 of 1000)
No single metric tells the full story. See the UCTT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ultra Clean Holdings Inc, through its subsidiaries, manufactures and supplies production tools, modules, and subsystems for the semiconductor capital equipment industry. The product includes precision robotic solutions, gas delivery systems, and a variety of industrial and automation production equipment products; subsystems include wafer cleaning subsystems, chemical delivery modules, top-plate assemblies, frame assemblies, and process modules. Its customer base includes firms in the semiconductor capital equipment industry, medical, energy, industrial, flat panel, and research equipment industries. It has two segments: Products and Services. Its principal markets are the Americas, Asia Pacific, and EMEA.
66GF Score
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