Groupe Tera (XPAR:ALGTR) Volatility: 76.00% (As of Jul. 25, 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
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.

XPAR:ALGTR Groupe Tera SA XPAR:ALGTR
56 GF Score
Price €7.15
GF Value €2.98
Valuation Significantly Overvalued
! 8 Warning Signs
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What is Groupe Tera Volatility?

Groupe Tera XPAR:ALGTR -2.05% 56 Volatility is 76.00% as of Jul. 25, 2026. GuruFocus rates XPAR:ALGTR with a GF Score™ of 56/100 and a GF Value™ of €2.98 (Significantly Overvalued). The stock has 8 warning signs investors should review.

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.

As of today (2026-07-25), Groupe Tera's Volatility is 76.00%.


Groupe Tera  (XPAR:ALGTR) Volatility Explanation

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.


Groupe Tera Volatility Related Terms


XPAR:ALGTR vs COHR, KEYS, GRMN: Volatility Comparison

For the Scientific & Technical Instruments subindustry, Groupe Tera's Volatility, along with its competitors' market caps and Volatility 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.


Groupe Tera Volatility vs Hardware Industry

For the Hardware industry and Technology sector, Groupe Tera's Volatility distribution charts can be found below:

* The bar in red indicates where Groupe Tera's Volatility falls into.


XPAR:ALGTR
56GF Score
Groupe Tera SA XPAR:ALGTR
Volatility is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Groupe Tera  (XPAR:ALGTR) Volatility Calculation

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.

Frequently Asked Questions Learn more about Volatility →
What does a Volatility of 76.00% mean?
Groupe Tera (XPAR:ALGTR) has a Volatility of 76.00% as of Jul. 25, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Groupe Tera and its competitors.
Is Groupe Tera's Volatility too high?
Groupe Tera's current Volatility is 76.00%. Overall, Groupe Tera has a GF Score™ of 56/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Groupe Tera's Volatility compare to COHR and KEYS?
Groupe Tera's Volatility of 76.00% can be compared against companies in the Hardware 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 Hardware company?
A good Volatility depends on the Hardware 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 Groupe Tera and its competitors. Groupe Tera's current Volatility is 76.00%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Groupe Tera stock overvalued right now?
Based on GuruFocus' analysis, Groupe Tera (XPAR:ALGTR) is currently considered Significantly Overvalued. The stock's GF Value™ is €2.98, compared to a current price of €7.15 — trading 139.9% above its estimated fair value. The current Volatility is 76.00%. Groupe Tera's overall GF Score™ is 56/100 with 8 warning signs 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 Groupe Tera (XPAR:ALGTR), the current Volatility is 76.00% as of Jul. 25, 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 Groupe Tera (XPAR:ALGTR) Overvalued in 2026?

Based on GuruFocus' analysis, Groupe Tera stock appears to be overvalued. The current stock price of €7.15 is trading 139.9% above its estimated GF Value™ of €2.98. GuruFocus considers Groupe Tera to be Significantly Overvalued.

Key valuation signals for XPAR:ALGTR:

  • Volatility: 76.00%
  • GF Value™: €2.98 vs. price of €7.15 (139.9% above fair value)
  • GF Score™: 56/100 with 8 warning signs

No single metric tells the full story. See the XPAR:ALGTR stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Groupe Tera Business Description

Other Exchanges GT2:Germany
Address 628 Rue Charles De Gaulle, Crolles, FRA, 38920
Groupe Tera SA is engaged in the field of measuring and monitoring air quality. The group works for the environmental, high technology and health sector to assist with the chemical characterisation of environment. It provides both the design of sensors for measuring the air quality and the laboratory analysis of the pollutants in the ambient air and in industrial discharges.
56GF Score

Get the complete analysis for XPAR:ALGTR

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

€7.15
Price
€2.98
GF Value