Comfort Systems USAMEX:FIX 30 ROC (Joel Greenblatt) % is 316.34% as of Mar. 2026, which is 191% above its 10-year median of 108.87. GuruFocus rates MEX:FIX with a GF Score™ of 30/100 and a GF Value™ of MXN13,077.92 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 1,775 Construction companies, Comfort Systems USA ranks better than 95.61% 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. Comfort Systems USA's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 316.34%.
The historical rank and industry rank for Comfort Systems USA's ROC (Joel Greenblatt) % or its related term are showing as below:
MEX:FIX'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: 80.01 Med: 108.87 Max: 366.13
Current: 366.13
During the past 13 years, Comfort Systems USA's highest ROC (Joel Greenblatt) % was 366.13%. The lowest was 80.01%. And the median was 108.87%.
MEX:FIX's ROC (Joel Greenblatt) % is ranked better than 95.61% of 1775
companies
in the Construction industry
Industry Median: 19.37
vs MEX:FIX: 366.13
Comfort Systems USA's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 26.40% per year.
Comfort Systems USA (MEX:FIX) 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.
Comfort Systems USA ROC (Joel Greenblatt) % Related Terms
Comfort Systems USA ROC (Joel Greenblatt) % Historical Data
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The historical data trend for Comfort Systems USA'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.
MEX:FIX vs EME, MTZ, PWR: ROC (Joel Greenblatt) % Comparison
For the Engineering & Construction subindustry, Comfort Systems USA'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.
Comfort Systems USA ROC (Joel Greenblatt) % vs Construction Industry
For the Construction industry and Industrials sector, Comfort Systems USA's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Comfort Systems USA's ROC (Joel Greenblatt) % falls into.
Comfort Systems USA ROC (Joel Greenblatt) % Calculation
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 (Mar. 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 316.34% mean?
Comfort Systems USA (MEX:FIX) has a ROC (Joel Greenblatt) % of 316.34% as of Mar. 2026. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Comfort Systems USA and its competitors. This is 191% above median its historical median of 108.87. Over the past decade, Comfort Systems USA's ROC (Joel Greenblatt) % has ranged from 80.01 to 366.13. According to the industry distribution chart, Comfort Systems USA ranks #78 out of 1775 companies in the Construction industry, placing it in the top 4.4%.
Is Comfort Systems USA's ROC (Joel Greenblatt) % too high?
Comfort Systems USA's current ROC (Joel Greenblatt) % of 316.34% is 191% above median its 10-year median of 108.87. Over the past 10 years, this metric has ranged from a low of 80.01 to a high of 366.13. The Construction industry median ROC (Joel Greenblatt) % is 19.37. Comfort Systems USA's value of 316.34% is 1533.1% above this industry median. Based on the distribution chart, Comfort Systems USA ranks #78 out of 1775 companies in the Construction industry, which is in the top quartile — a strong position relative to peers. Overall, Comfort Systems USA has a GF Score™ of 30/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Comfort Systems USA's ROC (Joel Greenblatt) % compare to EME and MTZ?
According to the Construction industry distribution chart, Comfort Systems USA ranks #78 out of 1775 companies for ROC (Joel Greenblatt) %. This places Comfort Systems USA in the top 4% of its industry — outperforming the majority of peers. The industry median ROC (Joel Greenblatt) % is 19.37. Comfort Systems USA's value of 316.34% is 1533.1% above this benchmark. Historically, Comfort Systems USA's own ROC (Joel Greenblatt) % has ranged from 80.01 to 366.13 over the past decade. While the company's 10-year median is 108.87 vs. the industry median of 19.37, Comfort Systems USA 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 ROC (Joel Greenblatt) % for a Construction company?
The median ROC (Joel Greenblatt) % among Construction companies is 19.37, based on 1,775 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. Comfort Systems USA's current ROC (Joel Greenblatt) % of 316.34% is 1533.1% 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 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 Comfort Systems USA and its competitors. For the Construction industry, the median ROC (Joel Greenblatt) % is 19.37 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Comfort Systems USA's current ROC (Joel Greenblatt) % is 316.34%, which is 191% above median its own 10-year median of 108.87. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Comfort Systems USA stock overvalued right now?
Based on GuruFocus' analysis, Comfort Systems USA (MEX:FIX) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN13,077.92, compared to a current price of MXN33,993.00 — trading 159.9% above its estimated fair value. The current ROC (Joel Greenblatt) % is 316.34%, which is 191% above median its 10-year median of 108.87 and 1533.1% above the Construction industry median of 19.37. Comfort Systems USA's overall GF Score™ is 30/100 with 1 warning sign 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 Comfort Systems USA (MEX:FIX), the current ROC (Joel Greenblatt) % is 316.34% as of Mar. 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 Comfort Systems USA (MEX:FIX) Overvalued in 2026?
Based on GuruFocus' analysis, Comfort Systems USA stock appears to be overvalued.
The current stock price of MXN33,993.00 is trading 159.9% above its estimated GF Value™ of MXN13,077.92.
GuruFocus considers Comfort Systems USA to be Significantly Overvalued.
Key valuation signals for MEX:FIX:
ROC (Joel Greenblatt) %: 316.34% (191% above median its 10-year median of 108.87)
GF Value™: MXN13,077.92 vs. price of MXN33,993.00 (159.9% above fair value)
Industry Position: 1533.1% above the Construction median (#78 of 1775)
No single metric tells the full story. See the MEX:FIX stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Comfort Systems USA Inc provides comprehensive mechanical contracting services, including heating, ventilation, & air conditioning, or HVAC; plumbing; piping & controls; construction; and other electrical components. Projects are mainly for commercial, industrial, & institutional buildings, & tend to be geared toward HVAC. Revenue is roughly split between installation services for newly constructed facilities & maintenance services for existing buildings. The company installs & repairs products and systems throughout the United States. It operates in two segments, Mechanical services & Electrical services, the majority is from the Mechanical services segment.
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