Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Guardforce AI CoGFAI -5.96%35 ROC (Joel Greenblatt) % is -65.61% as of Dec. 2025. GuruFocus rates GFAI with a GF Score™ of 35/100 and a GF Value™ of $0.62 (Possible Value Trap). The stock has 4 warning signs investors should review. Among 1,081 Business Services companies, Guardforce AI Co ranks worse than 90.01% 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. Guardforce AI Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was -65.61%.
The historical rank and industry rank for Guardforce AI Co's ROC (Joel Greenblatt) % or its related term are showing as below:
GFAI'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -163.67 Med: -56.94 Max: 5.55
Current: -59.12
During the past 7 years, Guardforce AI Co's highest ROC (Joel Greenblatt) % was 5.55%. The lowest was -163.67%. And the median was -56.94%.
GFAI's ROC (Joel Greenblatt) % is ranked worse than 90.01% of 1081
companies
in the Business Services industry
Industry Median: 21.22
vs GFAI: -59.12
Guardforce AI Co's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was -34.80% per year.
Guardforce AI Co (NAS:GFAI) 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.
Guardforce AI Co ROC (Joel Greenblatt) % Related Terms
Guardforce AI Co ROC (Joel Greenblatt) % Historical Data
* Premium members only.
The historical data trend for Guardforce AI 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.
GFAI vs VRME, BKYI, IVDA: ROC (Joel Greenblatt) % Comparison
For the Security & Protection Services subindustry, Guardforce AI 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.
Guardforce AI Co ROC (Joel Greenblatt) % vs Business Services Industry
For the Business Services industry and Industrials sector, Guardforce AI Co's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Guardforce AI Co's ROC (Joel Greenblatt) % falls into.
Guardforce AI Co 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 (Dec. 2025) 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 -65.61% mean?
Guardforce AI Co (GFAI) has a ROC (Joel Greenblatt) % of -65.61% as of Dec. 2025. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Guardforce AI Co and its competitors. According to the industry distribution chart, Guardforce AI Co ranks #973 out of 1081 companies in the Business Services industry, placing it in the top 90%.
Is Guardforce AI Co's ROC (Joel Greenblatt) % too high?
Guardforce AI Co's current ROC (Joel Greenblatt) % is -65.61%. Based on the distribution chart, Guardforce AI Co ranks #973 out of 1081 companies in the Business Services industry, which is in the bottom quartile relative to peers. Overall, Guardforce AI Co has a GF Score™ of 35/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Guardforce AI Co's ROC (Joel Greenblatt) % compare to VRME and BKYI?
According to the Business Services industry distribution chart, Guardforce AI Co ranks #973 out of 1081 companies for ROC (Joel Greenblatt) %. This places Guardforce AI Co in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 21.22. 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 Business Services company?
The median ROC (Joel Greenblatt) % among Business Services companies is 21.22, based on 1,081 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. 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 Guardforce AI Co and its competitors. For the Business Services industry, the median ROC (Joel Greenblatt) % is 21.22 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Guardforce AI Co's current ROC (Joel Greenblatt) % is -65.61%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Guardforce AI Co stock overvalued right now?
Based on GuruFocus' analysis, Guardforce AI Co (GFAI) is currently considered Possible Value Trap. The stock's GF Value™ is $0.62, compared to a current price of $0.35 — trading 43.4% below its estimated fair value. The current ROC (Joel Greenblatt) % is -65.61%. Guardforce AI Co's overall GF Score™ is 35/100 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 Guardforce AI Co (GFAI), the current ROC (Joel Greenblatt) % is -65.61% as of Dec. 2025. 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 Guardforce AI Co (GFAI) Overvalued in 2026?
Based on GuruFocus' analysis, Guardforce AI Co stock appears to be undervalued.
The current stock price of $0.35 is trading 43.4% below its estimated GF Value™ of $0.62.
GuruFocus considers Guardforce AI Co to be Possible Value Trap.
Key valuation signals for GFAI:
ROC (Joel Greenblatt) %: -65.61%
GF Value™: $0.62 vs. price of $0.35 (43.4% below fair value)
No single metric tells the full story. See the GFAI stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Guardforce AI Co Ltd is an integrated solution provider, specializing in security solutions, and also focuses on implementing AI and robotics solutions to improve business operational efficiency and sales and marketing processes, especially for the retail and travel industry in the Asia Pacific region. The company's operating business segments include Secured Logistics, AI & Robotics Solution Business, and Corporate and others. The majority of its revenue is generated from the Secured Logistics segment, which includes services like cash-in-transit, dedicated vehicles to banks, ATM management, cash center operations, cash processing, coin processing, cheque center, and cash deposit machine solutions. Geographically, the company generates maximum revenue from Thailand.
35GF Score
Get the complete analysis for GFAI
ROC (Joel Greenblatt) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
GFAI has been successfully added to your 
