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NampakJSE:NPK 50 ROC (Joel Greenblatt) % is 28.83% as of Mar. 2026, which is 146% above its 10-year median of 11.70. GuruFocus rates JSE:NPK with a GF Score™ of 50/100 and a GF Value™ of R472.92 (Fairly Valued). The stock has 5 warning signs investors should review. Among 401 Packaging & Containers companies, Nampak ranks better than 90.27% 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. Nampak's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 28.83%.
The historical rank and industry rank for Nampak's ROC (Joel Greenblatt) % or its related term are showing as below:
JSE:NPK'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -42.2 Med: 11.7 Max: 31.59
Current: 30.81
During the past 13 years, Nampak's highest ROC (Joel Greenblatt) % was 31.59%. The lowest was -42.20%. And the median was 11.70%.
JSE:NPK's ROC (Joel Greenblatt) % is ranked better than 90.27% of 401
companies
in the Packaging & Containers industry
Industry Median: 8.91
vs JSE:NPK: 30.81
Nampak's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.
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 Nampak'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.
JSE:NPK vs SW, PKG, IP: ROC (Joel Greenblatt) % Comparison
For the Packaging & Containers subindustry, Nampak'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.
Nampak ROC (Joel Greenblatt) % vs Packaging & Containers Industry
For the Packaging & Containers industry and Consumer Cyclical sector, Nampak's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Nampak'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 two times the semi-annual (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 28.83% mean?
Nampak (JSE:NPK) has a ROC (Joel Greenblatt) % of 28.83% 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 Nampak and its competitors. This is 146% above median its historical median of 11.70. According to the industry distribution chart, Nampak ranks #39 out of 401 companies in the Packaging & Containers industry, placing it in the top 9.7%.
Is Nampak's ROC (Joel Greenblatt) % too high?
Nampak's current ROC (Joel Greenblatt) % of 28.83% is 146% above median its 10-year median of 11.70. The Packaging & Containers industry median ROC (Joel Greenblatt) % is 8.91. Nampak's value of 28.83% is 223.6% above this industry median. Based on the distribution chart, Nampak ranks #39 out of 401 companies in the Packaging & Containers industry, which is in the top quartile — a strong position relative to peers. Overall, Nampak has a GF Score™ of 50/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Nampak's ROC (Joel Greenblatt) % compare to SW and PKG?
According to the Packaging & Containers industry distribution chart, Nampak ranks #39 out of 401 companies for ROC (Joel Greenblatt) %. This places Nampak in the top 10% of its industry — outperforming the majority of peers. The industry median ROC (Joel Greenblatt) % is 8.91. Nampak's value of 28.83% is 223.6% above this benchmark. While the company's 10-year median is 11.70 vs. the industry median of 8.91, Nampak 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 Packaging & Containers company?
The median ROC (Joel Greenblatt) % among Packaging & Containers companies is 8.91, based on 401 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. Nampak's current ROC (Joel Greenblatt) % of 28.83% is 223.6% 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 Nampak and its competitors. For the Packaging & Containers industry, the median ROC (Joel Greenblatt) % is 8.91 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Nampak's current ROC (Joel Greenblatt) % is 28.83%, which is 146% above median its own 10-year median of 11.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nampak stock overvalued right now?
Based on GuruFocus' analysis, Nampak (JSE:NPK) is currently considered Fairly Valued. The stock's GF Value™ is R472.92, compared to a current price of R430.00 — trading 9.1% below its estimated fair value. The current ROC (Joel Greenblatt) % is 28.83%, which is 146% above median its 10-year median of 11.70 and 223.6% above the Packaging & Containers industry median of 8.91. Nampak's overall GF Score™ is 50/100 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 Nampak (JSE:NPK), the current ROC (Joel Greenblatt) % is 28.83% 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 Nampak (JSE:NPK) Overvalued in 2026?
Based on GuruFocus' analysis, Nampak stock appears to be undervalued.
The current stock price of R430.00 is trading 9.1% below its estimated GF Value™ of R472.92.
GuruFocus considers Nampak to be Fairly Valued.
Key valuation signals for JSE:NPK:
ROC (Joel Greenblatt) %: 28.83% (146% above median its 10-year median of 11.70)
GF Value™: R472.92 vs. price of R430.00 (9.1% below fair value)
Industry Position: 223.6% above the Packaging & Containers median (#39 of 401)
No single metric tells the full story. See the JSE:NPK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Nampak Ltd is a metals packaging company in South Africa and Angola, and also has substantial positions in other metal packaging. It is the producer of two-piece tinplate cans and aluminium monobloc aerosol cans. The company's operating segments include Metals, which involves the manufacture of beverage cans, food cans, aerosol cans, and other metal packaging, and Corporate, which provides for head office activities, treasury, property services, and consolidation adjustments, including goodwill. The majority of revenue comes from the Metals segment and from South Africa.
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