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Volatility is a statistical measure of the dispersion of returns for a given security or market index, it shows how the price swings around its mean. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year. In most cases, the higher the volatility, the riskier the security.
Federal Signal does not have enough data to calculate Volatility.
Volatility is a statistical measure of the dispersion of returns for a given security or market index. It’s often measured as standard deviation or variance of historical returns over a certain period. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year.
Volatility reflects the uncertainty or risk of a security’s value. Generally speaking, a higher volatility suggests a higher risk, because it implies a wider fluctuation around average price. This means the price of the security can change dramatically in either direction within a short period. Conversely, a lower volatility means that the security's price is more steady, which suggests a lower risk.
Another measurement of relative volatility is Beta. Beta is a measure of systematic risk of a security or a portfolio in comparison to the market as a whole. Beta is usually compared to 1. A beta of greater than 1 indicates that the security's price will be more volatile than the market.
The annualized volatility is calculated as following:
σA
=
σM
*
√12
=
√ 1/(n-1) ∑(Ri - R')^2
*
√12
Where: σM is the monthly volatility, n is the number of months in the period, Ri is the security's historical monthly returns and R' is the arithmetic mean of monthly returns.
* 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.
Federal Signal (STU:FSG) has a Volatility of N/A% as of Aug. 03, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Federal Signal and its competitors.
Is Federal Signal's Volatility too high?
Federal Signal's current Volatility is N/A%. Overall, Federal Signal has a GF Score™ of 99/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Federal Signal's Volatility compare to TEX and AGCO?
Federal Signal's Volatility of N/A% can be compared against companies in the Farm & Heavy Construction Machinery industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Volatility for a Farm & Heavy Construction Machinery company?
A good Volatility depends on the Farm & Heavy Construction Machinery industry context. However, Volatility 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 Volatility mean?
A high Volatility can signal that a stock is expensive relative to its fundamentals. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Federal Signal and its competitors. Federal Signal's current Volatility is N/A%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Federal Signal stock overvalued right now?
Based on GuruFocus' analysis, Federal Signal (STU:FSG) is currently considered Fairly Valued. The stock's GF Value™ is €106.46, compared to a current price of €107.00 — trading 0.5% above its estimated fair value. The current Volatility is N/A%. Federal Signal's overall GF Score™ is 99/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Volatility calculated?
Volatility is calculated from a company's financial statements. For Federal Signal (STU:FSG), the current Volatility is N/A% as of Aug. 03, 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 Federal Signal (STU:FSG) Overvalued in 2026?
Based on GuruFocus' analysis, Federal Signal stock appears to be overvalued.
The current stock price of €107.00 is trading 0.5% above its estimated GF Value™ of €106.46.
GuruFocus considers Federal Signal to be Fairly Valued.
Key valuation signals for STU:FSG:
Volatility: N/A%
GF Value™: €106.46 vs. price of €107.00 (0.5% above fair value)
No single metric tells the full story. See the STU:FSG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Federal Signal Corp designs and manufactures products and integrated solutions for municipal, governmental, industrial, and airport customers. It operates through two segments. The Environmental Solutions Group manufactures and supplies street sweeper vehicles, sewer cleaner and vacuum loader trucks, hydro-excavation trucks, high-performance water blasting equipment, dump truck bodies, and trailers. The Safety and Security Systems Group manufactures and supplies comprehensive systems and products used by law enforcement, fire rescue, and industrial sites to protect people and property. Its offerings include systems for community alerting and industrial communications. The company generates the majority of its revenue from the Environmental Solutions Group segment.
99GF Score
Get the complete analysis for STU:FSG
Volatility is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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