Tempest Security AB (OSTO:TSEC) 1-Year Sharpe Ratio: -0.16 (As of Aug. 17, 2026)

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Director of Data and Quant Analytics at GuruFocus
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.
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Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

OSTO:TSEC Tempest Security AB OSTO:TSEC
65 GF Score
Price kr10.90
GF Value kr18.25
Valuation Possible Value Trap
! 4 Warning Signs
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What is Tempest Security AB 1-Year Sharpe Ratio?

Tempest Security AB OSTO:TSEC 65 1-Year Sharpe Ratio is -0.16 as of Aug. 17, 2026. GuruFocus rates OSTO:TSEC with a GF Score™ of 65/100 and a GF Value™ of kr18.25 (Possible Value Trap). The stock has 4 warning signs investors should review.

The 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk over the past year. As of today (2026-08-17), Tempest Security AB's 1-Year Sharpe Ratio is -0.16.


Tempest Security AB  (OSTO:TSEC) 1-Year Sharpe Ratio Explanation

The 1-Year Sharpe Ratio inidicates the risk-adjusted return of an investment over the past year. It is calculated as the annualized result of the average monthly excess return divided by its standard deviation over the past year. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.

The greater a portfolio's Sharpe Ratio, the better its risk-adjusted performance. A negative Sharpe Ratio means the risk-free rate is greater than the portfolio’s historical or projected return, or else the portfolio's return is expected to be negative.


Tempest Security AB 1-Year Sharpe Ratio Related Terms


OSTO:TSEC vs ALLE, MSA, ADT: 1-Year Sharpe Ratio Comparison

For the Security & Protection Services subindustry, Tempest Security AB's 1-Year Sharpe Ratio, along with its competitors' market caps and 1-Year Sharpe Ratio 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 1-Year Sharpe Ratio vs Business Services Industry

For the Business Services industry and Industrials sector, Tempest Security AB's 1-Year Sharpe Ratio distribution charts can be found below:

* The bar in red indicates where Tempest Security AB's 1-Year Sharpe Ratio falls into.


OSTO:TSEC
65GF Score
Tempest Security AB OSTO:TSEC
1-Year Sharpe Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Tempest Security AB 1-Year Sharpe Ratio Calculation

The 1-Year Sharpe Ratio measures the performance of an investment such as a stock or portfolio compared to a risk-free asset. A stock / portfolio's 1-Year Sharpe Ratio can be calculated by dividing the difference between the one-year returns of the investment and the risk-free rate, by the standard deviation of the investment returns over one year.

Frequently Asked Questions Learn more about 1-Year Sharpe Ratio →
What does a 1-Year Sharpe Ratio of -0.16 mean?
Tempest Security AB (OSTO:TSEC) has a 1-Year Sharpe Ratio of -0.16 as of Aug. 17, 2026. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Tempest Security AB and its competitors.
Is Tempest Security AB's 1-Year Sharpe Ratio too high?
Tempest Security AB's current 1-Year Sharpe Ratio is -0.16. Overall, Tempest Security AB 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 Tempest Security AB's 1-Year Sharpe Ratio compare to ALLE and MSA?
Tempest Security AB's 1-Year Sharpe Ratio of -0.16 can be compared against companies in the Business Services industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 1-Year Sharpe Ratio for a Business Services company?
A good 1-Year Sharpe Ratio depends on the Business Services industry context. However, 1-Year Sharpe Ratio 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 1-Year Sharpe Ratio mean?
A high 1-Year Sharpe Ratio can signal that a stock is expensive relative to its fundamentals. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Tempest Security AB and its competitors. Tempest Security AB's current 1-Year Sharpe Ratio is -0.16. 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 kr18.25, compared to a current price of kr10.90 — trading 40.3% below its estimated fair value. The current 1-Year Sharpe Ratio is -0.16. Tempest Security AB's overall GF Score™ is 65/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 1-Year Sharpe Ratio calculated?
1-Year Sharpe Ratio is calculated from a company's financial statements. For Tempest Security AB (OSTO:TSEC), the current 1-Year Sharpe Ratio is -0.16 as of Aug. 17, 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 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 kr10.90 is trading 40.3% below its estimated GF Value™ of kr18.25. GuruFocus considers Tempest Security AB to be Possible Value Trap.

Key valuation signals for OSTO:TSEC:

  • 1-Year Sharpe Ratio: -0.16
  • GF Value™: kr18.25 vs. price of kr10.90 (40.3% below fair value)
  • GF Score™: 65/100 with 4 warning signs

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 Business Description

Address Ralambsvagen 17, 18th Floor, Stockholm, SWE, 112 59
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.
65GF Score

Get the complete analysis for OSTO:TSEC

1-Year Sharpe Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

kr10.90
Price
kr18.25
GF Value