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Groupe Tera SA (ALGTR) fair value: what the stock is really worth

As of Sep 25, 2026: fair value of Groupe Tera SA €5.23, price €5.50, upside -5.0%, quality 40 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.

  1. Fair value above price? No
  2. Good quality? No
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Technology · FR · ISIN FR0013429404

GT Thin data Sep 27, 2026

Groupe Tera SA

ALGTR · PA

Low PriorityFair Value upside is limited and quality is weak.

·Fair value €5.23 · Fairly valued (−5.0%)
!Quality 40/100
!Weak Growth (revenue 5y +11.9 %/yr)
✓Highly profitable · 133.8% net margin (TTM)
!Low debt · negative free cash flow
✓Ranks above peers (7/11)
!Narrow moat 41/100
!Evidence only low, so the estimate is less certain
!Weak on valuation: 27 out of 100
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What runs behind every stock

26 valuation models 8 families, DCF to NCAV 37 quality factors margins, balance sheet, cashflow, debt 6 AI factors moat, what no ratio measures 2,000+ data points verified, per stock, median

69 individual criteria per stock, every one traceable See the method →

Price vs Fair Value

€8.64 €1.82 Fair Value €5.23 Jul 2021 Sep 2026

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Sep 27, 2026.

How to read this chart

60‑month range €1.82 – €8.64 · fair‑value band €3.92 – €6.91 · the €5.50 price screens above the €5.23 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Sep 27, 2026.

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Company profile

Groupe Tera SA, together with its subsidiaries, engages in the analysis of chemical air pollutants in France and internationally.

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Groupe Tera SA, together with its subsidiaries, engages in the analysis of chemical air pollutants in France and internationally. It offers toxicology and environmental analysis laboratory services; measures chemical pollutants; develops, industrializes, and markets sensors to measure air quality in real-time; and develops applications for real-time analysis of air quality. The company also offers air and respiratory protection technologies and devices for the treatment of respiratory viruses. In addition, it provides TERA Sensors, and Atmotrack data solutions. Groupe Tera SA was founded in 2001 and is headquartered in Crolles, France.

Stock analysis

Groupe Tera SA (ALGTR) currently trades at €5.50, while our model-based Fair Value estimate is €5.23, so the stock looks roughly fairly valued today (gap 5.2%).

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Valuation

Bull case: the Economic Profit group reads highest at a median of €36.39 per share, and 9 of the 9 models we run sit above the €5.50 price.

Bear case: the Asset-Based group reads lowest at €6.34, and 0 of the 9 models stay below the price. Evidence for this calculation is low.

Scenario range: €3.92 (bear) to €6.91 (bull), the price of €5.50 sits inside it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.

Quality & growth

The Quality Score stands at 40/100 (below-average quality), in the Technology sector.

Weak Growth: Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.

Groupe Tera SA reported revenue of €11.1M in FY2025 versus €11.7M in FY2021, a compound −1.4%/yr. Reported net income was €16.7M in FY2025, compounding +226.9%/yr from FY2021.

Key figures

Market cap €22.2M · P/E ratio 1.5 · P/S ratio 2.21 · EPS (TTM) €3.73 · Net margin 150% · Return on equity 163% · Return on assets (EBIT) −5.5% · Operating margin −27.1%.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 38 out of 100 (low confidence).

What moves the price

The share trades about 25% below its 52-week high and 120% above its 52-week low, currently above its 200-day average.

For context, the median of 10 Technology peers we cover trades at −37% fair-value upside, at −5%, ALGTR screens cheaper than that median.

Fair Value models

Bear €3.92 Fair Value €5.23 Bull €6.91
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above is their evidence-weighted blend, not the output of a single model. Based on fiscal year 2025 figures (about 9 months old). Earnings retained since then (€2.77 per share) are deliberately not added. Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target. If a model's bull case is above four times its base value, the table shows that limit with a > sign (like the overall Bull above): beyond it no assumption holds. Evidence ⓘEvidence = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Highest evidence
Residual Income €28.87 €36.39 €66.56 65
Growth-Adj P/E €138.95 €198.50 €258.05 65
P/E Multiple €172.53 €230.05 €287.56 63
All 9 models by family
Earnings-Based
Graham-Dodd €55.87 €174.16 €231.67 62
Lynch FV €37.90 €54.14 €70.39 59
PEG = 1.0 €37.90 €54.14 €70.39 55
Multiples
P/E Multiple €172.53 €230.05 €287.56 63
P/S Multiple €22.61 €30.14 €37.68 58
P/B Multiple €42.60 €56.80 €71.00 55
Asset-Based
NCAV (Graham) €4.73 €6.34 €9.47 54
Economic Profit
Residual Income €28.87 €36.39 €66.56 65
Growth Earnings
Growth-Adj P/E €138.95 €198.50 €258.05 65

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Quality Score breakdown

Overall quality 40/100

Of which business quality 45 · Market factors (momentum, volatility) 39

Profitability 64
Margins and returns on capital today
Quality Growth 20
Are margins and returns improving?
Cashflow 33
Earnings quality: real cash, not paper profit
Fin. Strength 90
Balance sheet, leverage, solvency risk
Investment 33
Disciplined investing over empire-building
Low Volatility 33
Calm price path (market factor)
Momentum 40
Price trend over the last 3–12 months (market factor)
52W Momentum 44
Distance to the 52-week high (market factor)
Net Issuance 4
Share count: buybacks or dilution?

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Revenue & earnings trend

Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card. 40/100
Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.
Revenue growth 1 year
−13.7%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
−7.6%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+11.9%
Start year 2020 (pandemic)
Revenue growth 8 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+13.1%
Profit margin (trend) ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.
−16.0% (2020) → −27.1% (2025)
What shareholders gained per year ⓘWe only publish this rate when it is defensible. Reason: rate outside our plausibility band
not computed

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Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Scientific & Technical Instruments · 159 stocks

Beats the industry median on 7/11 measures
Overall it ranks above its industry peers.
Valuation
Quality Score 40 · Bottom 25%
Fair Value upside −5.0% · Above median
Profitability
Return on equity (TTM) 162.6% · Top 25%
Return on assets −4.8% · Bottom 25%
Net margin (TTM) 133.8% · Top 25%
Operating margin (TTM) −27.1% · Bottom 25%
Growth and dividend
Revenue growth −26.3% · Bottom 25%
Balance sheet
Debt / equity 0.01× · Below median

Valuation Multiplesvs Scientific & Technical Instruments median · lower = cheaper

P/E (TTM) 1.5× · Cheapest 25%
P/B 1.31× · Cheaper than median
P/S (TTM) 2.03× · Cheaper than median

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)27 · sector 0
FUTURE (revenue growth)0 · sector 25
PAST (return on equity)100 · sector 24
HEALTH (low debt)99 · sector 98
DIVIDEND (yield)0 · sector 18

Context: sector, industry, market

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

None of the checked exposures detected

Similar stocks

10 more Scientific & Technical Instruments stocks, each showing price versus our Fair Value estimate.

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Keysight Technologies, Inc KEYS $362.15 $116.07 −68%
Coherent Corp COHR $295.83 $98.35 −67%
Garmin Ltd GRMN $294.14 $304.44 +4%
Chroma ATE Inc 2360 2,295 TWD 614.66 TWD −73%
Teledyne Technologies Incorporated TDY $614.15 $675.57 +10%
AVIC Chengdu Aircraft Company 302132 ¥72.18 ¥19.61 −73%
MKS Inc MKSI $260.82 $199.90 −23%
Fortive Corporation FTV $56.09 $35.20 −37%
Trimble Inc TRMB $57.85 $29.24 −49%
Cognex Corporation CGNX $58.66 $38.10 −35%

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Cite: Fair Value Calculator (2026). "Groupe Tera SA Fair Value". https://www.fairvalue-calculator.com/stock/ALGTR

Frequently asked questions

Is Groupe Tera SA (ALGTR) overvalued or undervalued?
As of Sep 27, 2026, our model estimates a fair value of €5.23 versus a price of €5.50, about −5% upside (fairly valued).
What is the fair value of ALGTR?
Our model-based fair value for Groupe Tera SA is €5.23 (as of Sep 27, 2026), built from audited fundamentals. The current price: €5.50.
What is the quality score of ALGTR?
Groupe Tera SA has a Quality Score of 40/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Groupe Tera SA (ALGTR)?
Our model-based price target is the fair value of €5.23 (as of Sep 27, 2026) from 9 valuation models. Cautious scenario €3.92, optimistic scenario €6.91. It is a calculation from audited fundamentals, not an analyst target.
What is the Groupe Tera SA stock forecast for 2026?
Our models put fair value at €5.23, about −5% upside versus a price of €5.50 (fairly valued). Cautious scenario €3.92, optimistic scenario €6.91. The calculation is refreshed regularly with new filings.
What is the revenue of Groupe Tera SA (ALGTR)?
Groupe Tera SA reported trailing-twelve-month revenue of about €12.5M (latest available figure, as of Sep 27, 2026).
What is the intrinsic value of Groupe Tera SA (ALGTR)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Groupe Tera SA it is €5.23 per share (as of Sep 27, 2026), against a price of €5.50. It is the blended result of 9 valuation models (cash flow, earnings, asset, dividend).
Is Groupe Tera SA stock overvalued or undervalued in 2026?
As of Sep 27, 2026, ALGTR trades above its calculated fair value: price €5.50, fair value €5.23, a gap of about −5% (fairly valued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of ALGTR?
No. The price is what the market pays today (€5.50); the fair value is what the company's own numbers justify (€5.23). For Groupe Tera SA the two are €0.2740 per share apart. That gap is exactly why we show both numbers side by side.
How much is Groupe Tera SA worth?
The market values Groupe Tera SA at about €22.2M (market capitalisation, as of Sep 27, 2026). Per share that is €5.50; our models calculate a fair value of €5.23 per share.
What do the bullish and bearish scenarios say about ALGTR?
Our models span a range for Groupe Tera SA: cautious scenario €3.92, base €5.23, optimistic €6.91 per share (as of Sep 27, 2026, price €5.50). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of ALGTR?
Groupe Tera SA trades at a price-to-earnings ratio of 1.5 (as of Sep 27, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of €5.23 is built from several models across several years. Other multiples: P/B 1.3, P/S 2.0.
How solid is the balance sheet of Groupe Tera SA (ALGTR)?
Balance-sheet figures for Groupe Tera SA (as of Sep 27, 2026): return on equity 162.6%, debt of 0.01 per unit of equity. They feed the Quality Score of 40/100, which measures business quality independently of the share price.
How far is ALGTR from its 52-week high?
Groupe Tera SA trades at €5.50, about 25% below its 52-week high of €7.30 and 120% above the low of €2.50 (as of Sep 25, 2026). Distance from the high says nothing about value: that is what the fair value of €5.23 is for.
Which stocks are comparable to Groupe Tera SA?
From the same area (Technology) we also value Keysight Technologies, Inc, Coherent Corp, Garmin Ltd, Chroma ATE Inc, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Groupe Tera SA stock attractive at the current price?
The data as of Sep 27, 2026: price €5.50, calculated fair value €5.23 (−5%), Quality Score 40/100, from 9 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of ALGTR calculated?
We run Groupe Tera SA through 9 models from four families: discounted cash flow, earnings models, asset and balance-sheet models, and dividend models. Every model gets the same audited fundamentals; the result is the weighted average of €5.23, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 16.1 % above its aggregate fair value. Groupe Tera SA itself currently trades above fair value. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of Groupe Tera SA (ALGTR)?
The closing price on Sep 25, 2026 was €5.50. Our model-based fair value is €5.23, about −5% upside (fairly valued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Groupe Tera SA right now?
The price sits close to our fair value, market and models broadly agree here, little valuation tension. Evidence is limited here (fewer models, shorter history), so the fair value is a rougher estimate than usual.

Key figures of Groupe Tera SA

How large is the market capitalisation of Groupe Tera SA (ALGTR)?
The market capitalisation of Groupe Tera SA is €22.2M. The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of Groupe Tera SA (ALGTR)?
The price-to-sales ratio of Groupe Tera SA is 2.21 (P/E × margin). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What are the earnings per share of Groupe Tera SA (ALGTR)?
Earnings per share at Groupe Tera SA are €3.73 (price ÷ EPS = P/E 1.5). Earnings per share over the last twelve months: total profit spread across every single share.
What is the net margin of Groupe Tera SA (ALGTR)?
The net margin of Groupe Tera SA is 150% (fiscal year 2025). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of Groupe Tera SA (ALGTR)?
The return on equity (ROE) of Groupe Tera SA is 163% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Groupe Tera SA (ALGTR)?
On an EBIT basis the return on assets of Groupe Tera SA is −5.5% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of Groupe Tera SA (ALGTR)?
The operating margin of Groupe Tera SA is −27.1% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Groupe Tera SA (ALGTR)?
Revenue at Groupe Tera SA is growing −26.3% versus a year earlier (3y avg −7.6%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How much free cash flow does Groupe Tera SA (ALGTR) generate?
The free cash flow of Groupe Tera SA is −€3.9M (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net cash does Groupe Tera SA (ALGTR) hold?
Groupe Tera SA holds more cash than debt, €12.8M net (fiscal year 2025). The company holds more cash than debt, a safety cushion.
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