Jack In The BoxJACK +15.33%65 ROC (Joel Greenblatt) % is 10.22% as of Mar. 2026, which is 56% below its 10-year median of 23.15. GuruFocus rates JACK with a GF Score™ of 65/100 and a GF Value™ of $37.97 (Possible Value Trap). The stock has 5 warning signs investors should review. Among 364 Restaurants companies, Jack In The Box ranks worse than 76.92% 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. Jack In The Box's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 10.22%.
The historical rank and industry rank for Jack In The Box's ROC (Joel Greenblatt) % or its related term are showing as below:
JACK'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -3.53 Med: 23.15 Max: 51.25
Current: -3.53
During the past 13 years, Jack In The Box's highest ROC (Joel Greenblatt) % was 51.25%. The lowest was -3.53%. And the median was 23.15%.
JACK's ROC (Joel Greenblatt) % is ranked worse than 76.92% of 364
companies
in the Restaurants industry
Industry Median: 8.38
vs JACK: -3.53
Jack In The Box's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.
Jack In The Box (NAS:JACK) 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.
Jack In The Box ROC (Joel Greenblatt) % Related Terms
Jack In The Box ROC (Joel Greenblatt) % Historical Data
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The historical data trend for Jack In The Box'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.
JACK vs VENU, RICK, BRCB: ROC (Joel Greenblatt) % Comparison
For the Restaurants subindustry, Jack In The Box'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.
Jack In The Box ROC (Joel Greenblatt) % vs Restaurants Industry
For the Restaurants industry and Consumer Cyclical sector, Jack In The Box's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Jack In The Box's ROC (Joel Greenblatt) % falls into.
Jack In The Box 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 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 10.22% mean?
Jack In The Box (JACK) has a ROC (Joel Greenblatt) % of 10.22% 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 Jack In The Box and its competitors. This is 56% below median its historical median of 23.15. According to the industry distribution chart, Jack In The Box ranks #280 out of 364 companies in the Restaurants industry, placing it in the top 76.9%.
Is Jack In The Box's ROC (Joel Greenblatt) % too high?
Jack In The Box's current ROC (Joel Greenblatt) % of 10.22% is 56% below median its 10-year median of 23.15. The Restaurants industry median ROC (Joel Greenblatt) % is 8.38. Jack In The Box's value of 10.22% is 22% above this industry median. Based on the distribution chart, Jack In The Box ranks #280 out of 364 companies in the Restaurants industry, which is in the bottom quartile relative to peers. Overall, Jack In The Box has a GF Score™ of 65/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Jack In The Box's ROC (Joel Greenblatt) % compare to VENU and RICK?
According to the Restaurants industry distribution chart, Jack In The Box ranks #280 out of 364 companies for ROC (Joel Greenblatt) %. This places Jack In The Box in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 8.38. Jack In The Box's value of 10.22% is 22% above this benchmark. While the company's 10-year median is 23.15 vs. the industry median of 8.38, Jack In The Box 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 Restaurants company?
The median ROC (Joel Greenblatt) % among Restaurants companies is 8.38, based on 364 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. Jack In The Box's current ROC (Joel Greenblatt) % of 10.22% is 22% 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 Jack In The Box and its competitors. For the Restaurants industry, the median ROC (Joel Greenblatt) % is 8.38 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Jack In The Box's current ROC (Joel Greenblatt) % is 10.22%, which is 56% below median its own 10-year median of 23.15. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Jack In The Box stock overvalued right now?
Based on GuruFocus' analysis, Jack In The Box (JACK) is currently considered Possible Value Trap. The stock's GF Value™ is $37.97, compared to a current price of $13.35 — trading 64.8% below its estimated fair value. The current ROC (Joel Greenblatt) % is 10.22%, which is 56% below median its 10-year median of 23.15 and 22% above the Restaurants industry median of 8.38. Jack In The Box'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 Jack In The Box (JACK), the current ROC (Joel Greenblatt) % is 10.22% 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 Jack In The Box (JACK) Overvalued in 2026?
Based on GuruFocus' analysis, Jack In The Box stock appears to be undervalued.
The current stock price of $13.35 is trading 64.8% below its estimated GF Value™ of $37.97.
GuruFocus considers Jack In The Box to be Possible Value Trap.
Key valuation signals for JACK:
ROC (Joel Greenblatt) %: 10.22% (56% below median its 10-year median of 23.15)
GF Value™: $37.97 vs. price of $13.35 (64.8% below fair value)
Industry Position: 22% above the Restaurants median (#280 of 364)
No single metric tells the full story. See the JACK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Jack In The Box Inc operates quick-service restaurants and fast-casual restaurants across various states in the United States of America. Its core business includes the Jack in the Box hamburger chain, known for a broad menu that features hamburgers, tacos, sandwiches, salads, and breakfast items. The company also operates the Del Taco brand, which offers a variety of both Mexican and American favorites such as burritos and fries. These foods are available with the option of customization as per customer requirements. The company also offers catering and delivery services to its customers. Jack in the Box and Del Taco restaurant brands are the two reportable operating segments, of which, Jack in the Box generates maximum revenue for the company.
65GF Score
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