Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
DuratekROCO:8098 -0.26%66 PB Ratio is 4.43 as of Jul. 27, 2026, which is 90% above its 10-year median of 2.33. GuruFocus rates ROCO:8098 with a GF Score™ of 66/100 and a GF Value™ of NT$285.82 (Significantly Overvalued). Among 998 Semiconductors companies, Duratek ranks worse than 63.13% on this metric.
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. As of today (2026-07-27), Duratek's share price is NT$380.50. Duratek's Book Value per Share for the quarter that ended in Dec. 2025 was NT$85.97. Hence, Duratek's PB Ratio of today is 4.43.
The historical rank and industry rank for Duratek's PB Ratio or its related term are showing as below:
ROCO:8098'
s PB Ratio Range Over the Past 10 Years
Min: 0.11 Med: 2.33 Max: 5.32
Current: 4.43
During the past 6 years, Duratek's highest PB Ratio was 5.32. The lowest was 0.11. And the median was 2.33.
ROCO:8098's PB Ratio is ranked worse than 63.13% of 998
companies
in the Semiconductors industry
Industry Median: 3.14
vs ROCO:8098: 4.43
During the past 12 months, Duratek's average Book Value Per Share Growth Rate was 8.30% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 11.80% per year.
During the past 6 years, the highest 3-Year average Book Value Per Share Growth Rate of Duratek was 53.50% per year. The lowest was 11.80% per year. And the median was 32.65% per year.
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.
Duratek PB Ratio Related Terms
Duratek PB Ratio Historical Data
* Premium members only.
The historical data trend for Duratek'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.
ROCO:8098 vs AMAT, LRCX, KLAC: PB Ratio Comparison
For the Semiconductor Equipment & Materials subindustry, Duratek'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.
Duratek PB Ratio vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Duratek's PB Ratio distribution charts can be found below:
* The bar in red indicates where Duratek'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.
Duratek's PB Ratio for today is calculated as follows:
* 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.
Duratek (ROCO:8098) has a PB Ratio of 4.43 as of Jul. 27, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Duratek and its competitors. This is 90% above median its historical median of 2.33. Over the past decade, Duratek's PB Ratio has ranged from 0.11 to 5.32. According to the industry distribution chart, Duratek ranks #630 out of 998 companies in the Semiconductors industry, placing it in the top 63.1%.
Is Duratek's PB Ratio too high?
Duratek's current PB Ratio of 4.43 is 90% above median its 10-year median of 2.33. Over the past 10 years, this metric has ranged from a low of 0.11 to a high of 5.32. The Semiconductors industry median PB Ratio is 3.14. Duratek's value of 4.43 is 41.1% above this industry median. Based on the distribution chart, Duratek ranks #630 out of 998 companies in the Semiconductors industry, which is below the industry midpoint. Overall, Duratek has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Duratek's PB Ratio compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Duratek ranks #630 out of 998 companies for PB Ratio. This places Duratek in the lower half of its industry. The industry median PB Ratio is 3.14. Duratek's value of 4.43 is 41.1% above this benchmark. Historically, Duratek's own PB Ratio has ranged from 0.11 to 5.32 over the past decade. While the company's 10-year median is 2.33 vs. the industry median of 3.14, Duratek 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 3.14, based on 998 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. Duratek's current PB Ratio of 4.43 is 41.1% 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 Duratek and its competitors. For the Semiconductors industry, the median PB Ratio is 3.14 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Duratek's current PB Ratio is 4.43, which is 90% above median its own 10-year median of 2.33. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Duratek stock overvalued right now?
Based on GuruFocus' analysis, Duratek (ROCO:8098) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$285.82, compared to a current price of NT$380.50 — trading 33.1% above its estimated fair value. The current PB Ratio is 4.43, which is 90% above median its 10-year median of 2.33 and 41.1% above the Semiconductors industry median of 3.14. Duratek's overall GF Score™ is 66/100. 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 Duratek (ROCO:8098), the current PB Ratio is 4.43 as of Jul. 27, 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 Duratek (ROCO:8098) Overvalued in 2026?
Based on GuruFocus' analysis, Duratek stock appears to be overvalued.
The current stock price of NT$380.50 is trading 33.1% above its estimated GF Value™ of NT$285.82.
GuruFocus considers Duratek to be Significantly Overvalued.
Key valuation signals for ROCO:8098:
PB Ratio: 4.43 (90% above median its 10-year median of 2.33)
GF Value™: NT$285.82 vs. price of NT$380.50 (33.1% above fair value)
Industry Position: 41.1% above the Semiconductors median (#630 of 998)
No single metric tells the full story. See the ROCO:8098 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Duratek Inc is engaged in the research, development, manufacture and sale of parts, components of front-end semiconductor processing equipment, subsystem equipment, monocrystalline silicon product above 8 inches and the refurbishment of semiconductor equipment. Its products include CVD shower plate, heater, chamber kits, susceptor, collimator, and ceramic susecptor, among others. The company is specialized in precision machining, anodization, E-Bean welding, plasma coating, brazing. Geographically, the company operates in Taiwan; America; and Asia, of which it derives maximum revenue from Asia.
66GF Score
Get the complete analysis for ROCO:8098
PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:8098 has been successfully added to your 
