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Rohm CoSTU:ROM +1.08%65 ROC (Joel Greenblatt) % is 8.39% as of Jun. 2026, which is 23% below its 10-year median of 10.85. GuruFocus rates STU:ROM with a GF Score™ of 65/100 and a GF Value™ of €12.46 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 1,028 Semiconductors companies, Rohm Co ranks worse than 83.95% on this metric.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits). He defines ROC (Joel Greenblatt) % as EBIT divided by the total of Property, Plant and Equipment and net working capital. Rohm Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Jun. 2026 was 8.39%.
The historical rank and industry rank for Rohm Co's ROC (Joel Greenblatt) % or its related term are showing as below:
STU:ROM'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -27.58 Med: 10.85 Max: 21.49
Current: -24.38
During the past 13 years, Rohm Co's highest ROC (Joel Greenblatt) % was 21.49%. The lowest was -27.58%. And the median was 10.85%.
STU:ROM's ROC (Joel Greenblatt) % is ranked worse than 83.95% of 1028
companies
in the Semiconductors industry
Industry Median: 8.64
vs STU:ROM: -24.38
Rohm Co's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.
Rohm Co (STU:ROM) ROC (Joel Greenblatt) % Explanation
The way Joel Greenblatt defines Return on Capital is a more accurate measure of how efficiently the company generates returns onthe capital actually invested in the business. EBIT is used instead of net income because the tax and interest payment may be affected by factors other than the core business operation. Intangible assets are not included in the calculation because they don't need to be replaced.
The historical data trend for Rohm Co's ROC (Joel Greenblatt) % 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.
STU:ROM vs NVDA, AVGO, MU: ROC (Joel Greenblatt) % Comparison
For the Semiconductors subindustry, Rohm Co's ROC (Joel Greenblatt) %, along with its competitors' market caps and ROC (Joel Greenblatt) % 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.
Rohm Co ROC (Joel Greenblatt) % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Rohm Co's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Rohm Co's ROC (Joel Greenblatt) % falls into.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits) . He defines Return on Capital as follows:
EBIT stands for Earnings Before Interest and Taxes.
Fixed Assets are also known as non-current assets. They include the Property, Plant and Equipment that the firm needs in its operation.
GuruFocus calculates net working capital as: (Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Deferred Revenue + Other Current Liabilities). We're trying to account for OPERATING assets and liabilities (part of daily business) when calculating working capital. Cash and marketable securities are considered NON-OPERATING assets and are not included in calculation. We will also back out all interest bearing debt, short term debt and the portion of long term debt that is due in the current period from the current liabilities. This debt will be considered when computing cost of capital and it would be inappropriate to count it twice.
Note:
The EBIT data used here is four times the quarterly (Jun. 2026) EBIT data.
* 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.
What does a ROC (Joel Greenblatt) % of 8.39% mean?
Rohm Co (STU:ROM) has a ROC (Joel Greenblatt) % of 8.39% as of Jun. 2026. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Rohm Co and its competitors. This is 23% below median its historical median of 10.85. According to the industry distribution chart, Rohm Co ranks #863 out of 1028 companies in the Semiconductors industry, placing it in the top 83.9%.
Is Rohm Co's ROC (Joel Greenblatt) % too high?
Rohm Co's current ROC (Joel Greenblatt) % of 8.39% is 23% below median its 10-year median of 10.85. The Semiconductors industry median ROC (Joel Greenblatt) % is 8.64. Rohm Co's value of 8.39% is 2.9% below this industry median. Based on the distribution chart, Rohm Co ranks #863 out of 1028 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Rohm Co has a GF Score™ of 65/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Rohm Co's ROC (Joel Greenblatt) % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Rohm Co ranks #863 out of 1028 companies for ROC (Joel Greenblatt) %. This places Rohm Co in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 8.64. Rohm Co's value of 8.39% is 2.9% below this benchmark. While the company's 10-year median is 10.85 vs. the industry median of 8.64, Rohm Co has consistently been below 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 ROC (Joel Greenblatt) % for a Semiconductors company?
The median ROC (Joel Greenblatt) % among Semiconductors companies is 8.64, based on 1,028 companies in the industry. Companies in the top quartile (top 25%) have a ROC (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, ROC (Joel Greenblatt) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Rohm Co's current ROC (Joel Greenblatt) % of 8.39% is 2.9% below 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 ROC (Joel Greenblatt) % mean?
A high ROC (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Rohm Co and its competitors. For the Semiconductors industry, the median ROC (Joel Greenblatt) % is 8.64 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rohm Co's current ROC (Joel Greenblatt) % is 8.39%, which is 23% below median its own 10-year median of 10.85. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rohm Co stock overvalued right now?
Based on GuruFocus' analysis, Rohm Co (STU:ROM) is currently considered Significantly Overvalued. The stock's GF Value™ is €12.46, compared to a current price of €25.26 — trading 102.7% above its estimated fair value. The current ROC (Joel Greenblatt) % is 8.39%, which is 23% below median its 10-year median of 10.85 and 2.9% below the Semiconductors industry median of 8.64. Rohm Co's overall GF Score™ is 65/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Rohm Co (STU:ROM), the current ROC (Joel Greenblatt) % is 8.39% as of Jun. 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 Rohm Co (STU:ROM) Overvalued in 2026?
Based on GuruFocus' analysis, Rohm Co stock appears to be overvalued.
The current stock price of €25.26 is trading 102.7% above its estimated GF Value™ of €12.46.
GuruFocus considers Rohm Co to be Significantly Overvalued.
Key valuation signals for STU:ROM:
ROC (Joel Greenblatt) %: 8.39% (23% below median its 10-year median of 10.85)
GF Value™: €12.46 vs. price of €25.26 (102.7% above fair value)
Industry Position: 2.9% below the Semiconductors median (#863 of 1028)
No single metric tells the full story. See the STU:ROM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Rohm Co Ltd is a Japan-based company that manufactures and distributes electronic components for use in automotive, transportation, medical, healthcare, audiovisual, telecommunications, digital power, computer and peripherals, and home appliance end markets. The group operates through three reportable segments: LSI, Semiconductor Elements, and Modules. The LSI segment produces analog, logic, and memory LSIs; the Semiconductor Elements segment includes transistors, diodes, power devices, light-emitting diodes, and semiconductor lasers; and the Module segment produces print heads and optical modules.
65GF Score
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