DuratekROCO:8098 -0.14%66 Operating Margin % is 40.57% as of Dec. 2025, which is 4% above its 10-year median of 38.92. GuruFocus rates ROCO:8098 with a GF Score™ of 66/100 and a GF Value™ of NT$284.13 (Modestly Overvalued). Among 1,023 Semiconductors companies, Duratek ranks better than 97.07% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. Duratek's Operating Income for the
six
months ended in Dec. 2025 was NT$115.9 Mil. Duratek's Revenue for the
six
months ended in Dec. 2025 was NT$285.6 Mil. Therefore, Duratek's Operating Margin % for the quarter that ended in Dec. 2025 was 40.57%.
The historical rank and industry rank for Duratek's Operating Margin % or its related term are showing as below:
ROCO:8098'
s Operating Margin % Range Over the Past 10 Years
Min: 29.06 Med: 38.92 Max: 43.16
Current: 38.92
ROCO:8098's Operating Margin % is ranked better than 97.07% of 1023
companies
in the Semiconductors industry
Industry Median: 5.18
vs ROCO:8098: 38.92
Duratek's 5-Year Average Operating Margin % Growth Rate was 0.00% per year.
Duratek's Operating Income for the
six
months ended in Dec. 2025 was NT$115.9 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was NT$237.3 Mil.
Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.
Be Aware
Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).
If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.
For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokias Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).
Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.
Duratek Operating Margin % Related Terms
Duratek Operating Margin % Historical Data
* Premium members only.
The historical data trend for Duratek's Operating Margin % 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 LRCX, AMAT, KLAC: Operating Margin % Comparison
For the Semiconductor Equipment & Materials subindustry, Duratek's Operating Margin %, along with its competitors' market caps and Operating Margin % 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 Operating Margin % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Duratek's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Duratek's Operating Margin % falls into.
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
Duratek's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as
* 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.
Duratek (ROCO:8098) has a Operating Margin % of 40.57% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Duratek and its competitors. This is near median its historical median of 38.92. Over the past decade, Duratek's Operating Margin % has ranged from 29.06 to 43.16. According to the industry distribution chart, Duratek ranks #30 out of 1023 companies in the Semiconductors industry, placing it in the top 2.9%.
Is Duratek's Operating Margin % too high?
Duratek's current Operating Margin % of 40.57% is near median its 10-year median of 38.92. Over the past 10 years, this metric has ranged from a low of 29.06 to a high of 43.16. The Semiconductors industry median Operating Margin % is 5.18. Duratek's value of 40.57% is 683.2% above this industry median. Based on the distribution chart, Duratek ranks #30 out of 1023 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. Overall, Duratek has a GF Score™ of 66/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Duratek's Operating Margin % compare to LRCX and AMAT?
According to the Semiconductors industry distribution chart, Duratek ranks #30 out of 1023 companies for Operating Margin %. This places Duratek in the top 3% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 5.18. Duratek's value of 40.57% is 683.2% above this benchmark. Historically, Duratek's own Operating Margin % has ranged from 29.06 to 43.16 over the past decade. While the company's 10-year median is 38.92 vs. the industry median of 5.18, 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 Operating Margin % for a Semiconductors company?
The median Operating Margin % among Semiconductors companies is 5.18, based on 1,023 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Duratek's current Operating Margin % of 40.57% is 683.2% 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Duratek and its competitors. For the Semiconductors industry, the median Operating Margin % is 5.18 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Duratek's current Operating Margin % is 40.57%, which is near median its own 10-year median of 38.92. 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 Modestly Overvalued. The stock's GF Value™ is NT$284.13, compared to a current price of NT$369.50 — trading 30% above its estimated fair value. The current Operating Margin % is 40.57%, which is near median its 10-year median of 38.92 and 683.2% above the Semiconductors industry median of 5.18. 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 Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Duratek (ROCO:8098), the current Operating Margin % is 40.57% as of Dec. 2025. 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$369.50 is trading 30% above its estimated GF Value™ of NT$284.13.
GuruFocus considers Duratek to be Modestly Overvalued.
Key valuation signals for ROCO:8098:
Operating Margin %: 40.57% (near median its 10-year median of 38.92)
GF Value™: NT$284.13 vs. price of NT$369.50 (30% above fair value)
Industry Position: 683.2% above the Semiconductors median (#30 of 1023)
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
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