Quanex Building ProductsNX +3.33%61 ROC (Joel Greenblatt) % is 8.62% as of Apr. 2026, which is 35% below its 10-year median of 13.23. GuruFocus rates NX with a GF Score™ of 61/100 and a GF Value™ of $29.23 (Possible Value Trap). The stock has 4 warning signs investors should review. Among 1,778 Construction companies, Quanex Building Products ranks worse than 87.46% 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. Quanex Building Products's annualized ROC (Joel Greenblatt) % for the quarter that ended in Apr. 2026 was 8.62%.
The historical rank and industry rank for Quanex Building Products's ROC (Joel Greenblatt) % or its related term are showing as below:
NX'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -23.07 Med: 13.23 Max: 36.14
Current: -22.42
During the past 13 years, Quanex Building Products's highest ROC (Joel Greenblatt) % was 36.14%. The lowest was -23.07%. And the median was 13.23%.
NX's ROC (Joel Greenblatt) % is ranked worse than 87.46% of 1778
companies
in the Construction industry
Industry Median: 19.5
vs NX: -22.42
Quanex Building Products's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.
Quanex Building Products (NYSE:NX) 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.
Quanex Building Products ROC (Joel Greenblatt) % Related Terms
Quanex Building Products ROC (Joel Greenblatt) % Historical Data
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The historical data trend for Quanex Building Products'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.
Quanex Building Products ROC (Joel Greenblatt) % Chart
NX vs SWIM, JBI, LMB: ROC (Joel Greenblatt) % Comparison
For the Building Products & Equipment subindustry, Quanex Building Products'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.
Quanex Building Products ROC (Joel Greenblatt) % vs Construction Industry
For the Construction industry and Industrials sector, Quanex Building Products's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Quanex Building Products's ROC (Joel Greenblatt) % falls into.
Quanex Building Products 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 (Apr. 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 8.62% mean?
Quanex Building Products (NX) has a ROC (Joel Greenblatt) % of 8.62% as of Apr. 2026. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Quanex Building Products and its competitors. This is 35% below median its historical median of 13.23. According to the industry distribution chart, Quanex Building Products ranks #1555 out of 1778 companies in the Construction industry, placing it in the top 87.5%.
Is Quanex Building Products' ROC (Joel Greenblatt) % too high?
Quanex Building Products' current ROC (Joel Greenblatt) % of 8.62% is 35% below median its 10-year median of 13.23. The Construction industry median ROC (Joel Greenblatt) % is 19.50. Quanex Building Products' value of 8.62% is 55.8% below this industry median. Based on the distribution chart, Quanex Building Products ranks #1555 out of 1778 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, Quanex Building Products has a GF Score™ of 61/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Quanex Building Products' ROC (Joel Greenblatt) % compare to SWIM and JBI?
According to the Construction industry distribution chart, Quanex Building Products ranks #1555 out of 1778 companies for ROC (Joel Greenblatt) %. This places Quanex Building Products in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 19.50. Quanex Building Products' value of 8.62% is 55.8% below this benchmark. While the company's 10-year median is 13.23 vs. the industry median of 19.50, Quanex Building Products 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 Construction company?
The median ROC (Joel Greenblatt) % among Construction companies is 19.50, based on 1,778 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. Quanex Building Products's current ROC (Joel Greenblatt) % of 8.62% is 55.8% 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 Quanex Building Products and its competitors. For the Construction industry, the median ROC (Joel Greenblatt) % is 19.50 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Quanex Building Products's current ROC (Joel Greenblatt) % is 8.62%, which is 35% below median its own 10-year median of 13.23. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Quanex Building Products stock overvalued right now?
Based on GuruFocus' analysis, Quanex Building Products (NX) is currently considered Possible Value Trap. The stock's GF Value™ is $29.23, compared to a current price of $17.40 — trading 40.5% below its estimated fair value. The current ROC (Joel Greenblatt) % is 8.62%, which is 35% below median its 10-year median of 13.23 and 55.8% below the Construction industry median of 19.50. Quanex Building Products' overall GF Score™ is 61/100 with 4 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 Quanex Building Products (NX), the current ROC (Joel Greenblatt) % is 8.62% as of Apr. 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 Quanex Building Products (NX) Overvalued in 2026?
Based on GuruFocus' analysis, Quanex Building Products stock appears to be undervalued.
The current stock price of $17.40 is trading 40.5% below its estimated GF Value™ of $29.23.
GuruFocus considers Quanex Building Products to be Possible Value Trap.
Key valuation signals for NX:
ROC (Joel Greenblatt) %: 8.62% (35% below median its 10-year median of 13.23)
GF Value™: $29.23 vs. price of $17.40 (40.5% below fair value)
Industry Position: 55.8% below the Construction median (#1555 of 1778)
No single metric tells the full story. See the NX stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Quanex Building Products Corp is a manufacturer of components sold to original equipment manufacturers in the building products industry. It manufactures engineered products like window and door components that include flexible insulating glass spacers, extruded vinyl profiles, window and door screens, solar panel sealants and precision-formed metal and wood products among others. Its four operating segments are North American Fenestration being the key revenue driver, European Fenestration, North American Cabinet Components, and Tyman. Geographically, it derives a majority of revenue from the United States.
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