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Tempest Security ABOSTO:TSEC 70 Earnings Yield (Joel Greenblatt) % is -6.06% as of Dec. 2025. GuruFocus rates OSTO:TSEC with a GF Score™ of 70/100 and a GF Value™ of kr18.29 (Possible Value Trap). The stock has 4 warning signs investors should review. Among 1,107 Business Services companies, Tempest Security AB ranks worse than 87.62% on this metric.
Tempest Security AB's Enterprise Value for the quarter that ended in Dec. 2025 was kr169.1 Mil.
Tempest Security AB's EBIT for the trailing twelve months (TTM) ended in Dec. 2025 was kr-8.5 Mil. Tempest Security AB's Earnings Yield (Joel Greenblatt) for the quarter that ended in Dec. 2025 was -6.06%.
The historical rank and industry rank for Tempest Security AB's Earnings Yield (Joel Greenblatt) % or its related term are showing as below:
OSTO:TSEC'
s Earnings Yield (Joel Greenblatt) % Range Over the Past 10 Years
Min: -39.24 Med: -4.62 Max: 9.27
Current: -5.84
During the past 11 years, the highest Earnings Yield (Joel Greenblatt) of Tempest Security AB was 9.27%. The lowest was -39.24%. And the median was -4.62%.
OSTO:TSEC's Earnings Yield (Joel Greenblatt) % is ranked worse than 87.62% of 1107
companies
in the Business Services industry
Industry Median: 6.54
vs OSTO:TSEC: -5.84
Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.
A better indicator of the attractiveness of an investment which takes growth into account is the Forward Rate of Return (Yacktman) %. Tempest Security AB's Forward Rate of Return (Yacktman) % for the quarter that ended in Dec. 2025 was 0.00%. The Forward Rate of Return uses the normalized Free Cash Flow of the past five years, and considers growth. The forward rate of return can be thought of as the return that investors buying the stock today can expect from it in the future.
Tempest Security AB (OSTO:TSEC) Earnings Yield (Joel Greenblatt) % Explanation
Joel Greenblatt defines the earnings yield using the above equation because it more accurately reflects the company's profitability relative to its stock price. Items like interest payment and tax etc. are not directly related to the company's operational profitability.
Enterprise Value instead of market cap (share price) is used in the calculation because it is the real price stock and bond investors together pay for the company.
Be Aware
Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.
Tempest Security AB Earnings Yield (Joel Greenblatt) % Related Terms
Tempest Security AB Earnings Yield (Joel Greenblatt) % Historical Data
* Premium members only.
The historical data trend for Tempest Security AB's Earnings Yield (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.
Tempest Security AB Earnings Yield (Joel Greenblatt) % Chart
For the Security & Protection Services subindustry, Tempest Security AB's Earnings Yield (Joel Greenblatt) %, along with its competitors' market caps and Earnings Yield (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.
Tempest Security AB Earnings Yield (Joel Greenblatt) % vs Business Services Industry
For the Business Services industry and Industrials sector, Tempest Security AB's Earnings Yield (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Tempest Security AB's Earnings Yield (Joel Greenblatt) % falls into.
Tempest Security AB Earnings Yield (Joel Greenblatt) % Calculation
In his book, The Little That Beat the Market, hedge fund manager Joel Greenblatt defines Earnings Yield as operating income divided by enterprise value.
Tempest Security ABs Earnings Yield (Joel Greenblatt) for the fiscal year that ended in Dec. 2025 is calculated as
Tempest Security AB's EBIT for the trailing twelve months (TTM) ended in Dec. 2025 adds up the quarterly data reported by the company within the most recent 12 months, which was kr-8.5 Mil.
What does a Earnings Yield (Joel Greenblatt) % of -6.06% mean?
Tempest Security AB (OSTO:TSEC) has a Earnings Yield (Joel Greenblatt) % of -6.06% as of Dec. 2025. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on Tempest Security AB and its competitors. According to the industry distribution chart, Tempest Security AB ranks #970 out of 1107 companies in the Business Services industry, placing it in the top 87.6%.
Is Tempest Security AB's Earnings Yield (Joel Greenblatt) % too high?
Tempest Security AB's current Earnings Yield (Joel Greenblatt) % is -6.06%. Based on the distribution chart, Tempest Security AB ranks #970 out of 1107 companies in the Business Services industry, which is in the bottom quartile relative to peers. Overall, Tempest Security AB has a GF Score™ of 70/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Tempest Security AB's Earnings Yield (Joel Greenblatt) % compare to ALLE and MSA?
According to the Business Services industry distribution chart, Tempest Security AB ranks #970 out of 1107 companies for Earnings Yield (Joel Greenblatt) %. This places Tempest Security AB in the lower half of its industry. The industry median Earnings Yield (Joel Greenblatt) % is 6.54. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Earnings Yield (Joel Greenblatt) % for a Business Services company?
The median Earnings Yield (Joel Greenblatt) % among Business Services companies is 6.54, based on 1,107 companies in the industry. Companies in the top quartile (top 25%) have a Earnings Yield (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, Earnings Yield (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 Earnings Yield (Joel Greenblatt) % mean?
A high Earnings Yield (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on Tempest Security AB and its competitors. For the Business Services industry, the median Earnings Yield (Joel Greenblatt) % is 6.54 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tempest Security AB's current Earnings Yield (Joel Greenblatt) % is -6.06%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tempest Security AB stock overvalued right now?
Based on GuruFocus' analysis, Tempest Security AB (OSTO:TSEC) is currently considered Possible Value Trap. The stock's GF Value™ is kr18.29, compared to a current price of kr10.00 — trading 45.3% below its estimated fair value. The current Earnings Yield (Joel Greenblatt) % is -6.06%. Tempest Security AB's overall GF Score™ is 70/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Earnings Yield (Joel Greenblatt) % calculated?
Earnings Yield (Joel Greenblatt) % is calculated from a company's financial statements. For Tempest Security AB (OSTO:TSEC), the current Earnings Yield (Joel Greenblatt) % is -6.06% 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 Tempest Security AB (OSTO:TSEC) Overvalued in 2026?
Based on GuruFocus' analysis, Tempest Security AB stock appears to be undervalued.
The current stock price of kr10.00 is trading 45.3% below its estimated GF Value™ of kr18.29.
GuruFocus considers Tempest Security AB to be Possible Value Trap.
Key valuation signals for OSTO:TSEC:
Earnings Yield (Joel Greenblatt) %: -6.06%
GF Value™: kr18.29 vs. price of kr10.00 (45.3% below fair value)
No single metric tells the full story. See the OSTO:TSEC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Tempest Security AB provides solutions for security, protection, and service. The company has two segments: Security Solutions and Risk Solutions. The company gains the majority of revenue from Security Solutions, where it provides security guards, orderlies, and shop control. Risk Solutions includes Consulting, training, personal protection, and other specialized services. Geographically, the business activities function through the regions of Sweden, Denmark, and the United Kingdom.
70GF Score
Get the complete analysis for OSTO:TSEC
Earnings Yield (Joel Greenblatt) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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