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Unibios Holdings S.A (BIOSK) fair value: what the stock is really worth

As of Sep 24, 2026: fair value of Unibios Holdings S.A €1.49, price €2.50, upside -40.3%, 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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Industrials · GR · ISIN GRS084003011

UH Some data Sep 23, 2026

Unibios Holdings S.A

BIOSK · AT

Weakest SetupStrongly overvalued and low quality.

!Fair value €1.49 · Strongly overvalued (−40%)
!Quality 40/100
!Expensive Growth (revenue 5y +13.7 %/yr)
✓Solidly profitable · 12.0% net margin (TTM)
!Low debt · negative free cash flow
!Trails peers (3/13)
!Narrow moat 40/100
!Evidence only medium, so the estimate is less certain

What runs behind every stock

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

Price vs Fair Value

€3.18 €0.3552 Fair Value €1.49 Jun 2021 Sep 2026

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Sep 23, 2026.

How to read this chart

60‑month range €0.3552 – €3.18 · fair‑value band €1.07 – €1.91 · the €2.50 price screens above the €1.49 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Sep 23, 2026.

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Company profile

Unibios Holdings S.A., through its subsidiaries, develops and installs water treatment and recycling systems in Europe, Africa, and the Middle East. It provides installation and rental of faced scaffolding; and maintains and installs heating and air conditioning equipment.

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Unibios Holdings S.A., through its subsidiaries, develops and installs water treatment and recycling systems in Europe, Africa, and the Middle East. It provides installation and rental of faced scaffolding; and maintains and installs heating and air conditioning equipment. The company was formerly known as Biossol SA and changed its name to Unibios Holdings S.A. in July 2008. Unibios Holdings S.A. was incorporated in 1940 and is based in Ano Liosia, Greece.

Stock analysis

Unibios Holdings S.A (BIOSK) currently trades at €2.50, while our model-based Fair Value estimate is €1.49, implying the stock looks roughly 67.4% overvalued today.

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Valuation

Bull case: the Growth Earnings group reads highest at a median of €1.75 per share, and 1 of the 15 models we run sit above the €2.50 price.

Bear case: the DCF Models group reads lowest at €0.6300, and 14 of the 15 models stay below the price. Evidence for this calculation is medium.

Scenario range: €1.07 (bear) to €1.91 (bull), the price of €2.50 sits above 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 Industrials sector.

Expensive Growth: The company is growing, but growth may require heavy reinvestment or weak cash conversion.

Unibios Holdings S.A reported revenue of €13.9M in FY2025 versus €8.5M in FY2021, a compound +13.1%/yr. Reported net income was €1.7M in FY2025, compounding +49.5%/yr from FY2021. FY2021 was a trough year, so the rate overstates the trend.

Key figures

Market cap €42.7M · P/E ratio 27.7 · P/S ratio 3.33 · EPS (TTM) €0.0900 · Net margin 12.0% · Return on equity 7.7% · Return on assets (EBIT) 5.5% · Operating margin 4.7%.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 45 out of 100 (low confidence).

What moves the price

The share trades about 22% below its 52-week high and 14% above its 52-week low, currently below its 200-day average.

For context, the median of 10 Industrials peers we cover trades at −28% fair-value upside, at −40%, BIOSK screens richer than that median.

Fair Value models

Bear €1.07 Fair Value €1.49 Bull €1.91
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 (€0.0661 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. 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
Owner Earnings €0.4200 €0.6300 €0.9800 76
EPV €0.8700 €0.9800 €1.08 74
ROIC Compounder €0.8700 €0.9800 €1.10 72
All 15 models by family
DCF Models
Owner Earnings €0.4200 €0.6300 €0.9800 76
Earnings-Based
Graham-Dodd €0.6500 €2.87 €3.93 64
Lynch FV €0.7400 €1.06 €1.38 61
PEG = 1.0 €0.7400 €1.06 €1.38 57
EPV €0.8700 €0.9800 €1.08 74
Multiples
P/E Multiple €1.51 €2.01 €2.51 63
P/S Multiple €1.19 €1.59 €1.99 58
P/B Multiple €1.22 €1.63 €2.03 55
EV/EBIT €1.32 €1.72 €2.12 66
EV/EBITDA €1.38 €1.80 €2.22 67
EV/Revenue €0.9800 €1.35 €1.71 54
Asset-Based
NCAV (Graham) €0.5400 €0.7200 €1.07 54
Economic Profit
Residual Income €0.9000 €0.9800 €1.22 71
ROIC Compounder €0.8700 €0.9800 €1.10 72
Growth Earnings
Growth-Adj P/E €1.22 €1.75 €2.27 67

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Quality Score breakdown

Overall quality 40/100

Of which business quality 40 · Market factors (momentum, volatility) 46

Profitability 37
Margins and returns on capital today
Quality Growth 46
Are margins and returns improving?
Cashflow 6
Earnings quality: real cash, not paper profit
Fin. Strength 64
Balance sheet, leverage, solvency risk
Investment 35
Disciplined investing over empire-building
Low Volatility 78
Calm price path (market factor)
Momentum 36
Price trend over the last 3–12 months (market factor)
52W Momentum 26
Distance to the 52-week high (market factor)
Net Issuance 58
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. 57/100
The company is growing, but growth may require heavy reinvestment or weak cash conversion.
Revenue growth 1 year
−5.6%
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.
+7.3%
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.
+13.7%
Start year 2020 (pandemic). Over 10 years: +8.0% a year
Revenue growth 11 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.
+4.9%
What shareholders gained per year (last 5 years) ⓘWhat the business itself delivers per year: earnings growth per share plus the dividend yield. This is what you get IF the market keeps valuing the stock the same way: it contains no assumption about the market changing its mind. Computed per share, so buybacks count and a merger does not pass as growth. For a company that pays no dividend it is pure earnings growth per share. Period: earnings growth per share as CAGR over the last 5 reported fiscal years (annual statements), plus the current dividend yield. The start value is the median of the three years around the start, so a single crisis year (a pandemic or a write-down) does not distort the rate. Basis: EBIT basis.
≈ +18.0%
Earnings growth per share plus dividend.
Earnings per share, growth per year+18.0%
Dividend (yield on the price)0.0%
Profit margin 2020 to 2025 ⓘ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.5% → 12%
⚠ Rate on operating basis: 2025 sits 61% above its own trend.

BIOSK screens 67% overvalued. Compare with Veralto Corporation →

Compare Unibios Holdings S.A with another stock

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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.Pollution & Treatment Controls · 94 stocks

Beats the industry median on 3/13 measures
Overall it trails its industry peers.
Valuation
Quality Score 40 · Bottom 25%
Fair Value upside −40% · Below median
Profitability
Return on equity (TTM) 8% · Above median
Return on assets 3% · Above median
Net margin (TTM) 12% · Top 25%
Operating margin (TTM) 5% · Below median
Growth and dividend
Revenue growth −16% · Bottom 25%
Dividend yield (TTM) 0.0% · Bottom 25%
Balance sheet
Debt / equity 0.22× · Above median

Valuation Multiplesvs Pollution & Treatment Controls median · lower = cheaper

P/E (TTM) 27.7× · Pricier than median
P/B 2.60× · Priciest 25%
P/S (TTM) 3.50× · Priciest 25%
EV/EBITDA 25.6× · Priciest 25%

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)0 · sector 2
FUTURE (revenue growth)0 · sector 11
PAST (return on equity)31 · sector 18
HEALTH (low debt)89 · sector 94
DIVIDEND (yield)0 · sector 37

VALUE 0: the price sits above our fair-value range.

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 Pollution & Treatment Controls stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value
Veralto Corporation VLTO $95.79 $69.11 −28%
Zurn Elkay Water Solutions Corporation ZWS $46.91 $49.84 +6%
Canmax Technologies Co 300390 ¥54.23 ¥10.07 −81%
CECO Environmental Corp CECO $73.71 $15.27 −79%
Fujian Longking Co 600388 ¥17.22 ¥15.59 −9%
Munters Group MTRS kr 136.05 kr 48.58 −64%
China Conch Venture Holdings 0586 HK$7.59 HK$14.40 +90%
Mega Union Technology Inc 6944 760.00 TWD 836.00 TWD +10%
Hebei Sailhero Environmental Protection High-tech Co 300137 ¥11.49 ¥2.24 −81%
MayAir Technology (China) Co 688376 ¥65.14 ¥18.80 −71%

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Cite: Fair Value Calculator (2026). "Unibios Holdings S.A Fair Value". https://www.fairvalue-calculator.com/stock/BIOSK

Frequently asked questions

Is Unibios Holdings S.A (BIOSK) overvalued or undervalued?
As of Sep 23, 2026, our model estimates a fair value of €1.49 versus a price of €2.50, about −40% upside (overvalued).
What is the fair value of BIOSK?
Our model-based fair value for Unibios Holdings S.A is €1.49 (as of Sep 23, 2026), built from audited fundamentals. The current price: €2.50.
What is the quality score of BIOSK?
Unibios Holdings S.A 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 Unibios Holdings S.A (BIOSK)?
Our model-based price target is the fair value of €1.49 (as of Sep 23, 2026) from 15 valuation models. Cautious scenario €1.07, optimistic scenario €1.91. It is a calculation from audited fundamentals, not an analyst target.
What is the Unibios Holdings S.A stock forecast for 2026?
Our models put fair value at €1.49, about −40% upside versus a price of €2.50 (overvalued). Cautious scenario €1.07, optimistic scenario €1.91. The calculation is refreshed regularly with new filings.
What is the revenue of Unibios Holdings S.A (BIOSK)?
Unibios Holdings S.A reported trailing-twelve-month revenue of about €13.9M (latest available figure, as of Sep 23, 2026).
What is the intrinsic value of Unibios Holdings S.A (BIOSK)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Unibios Holdings S.A it is €1.49 per share (as of Sep 23, 2026), against a price of €2.50. It is the blended result of 15 valuation models (cash flow, earnings, asset, dividend).
Is Unibios Holdings S.A stock overvalued or undervalued in 2026?
As of Sep 23, 2026, BIOSK trades above its calculated fair value: price €2.50, fair value €1.49, a gap of about −40% (overvalued). 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 BIOSK?
No. The price is what the market pays today (€2.50); the fair value is what the company's own numbers justify (€1.49). For Unibios Holdings S.A the two are €1.01 per share apart. That gap is exactly why we show both numbers side by side.
How much is Unibios Holdings S.A worth?
The market values Unibios Holdings S.A at about €42.7M (market capitalisation, as of Sep 23, 2026). Per share that is €2.50; our models calculate a fair value of €1.49 per share.
What do the bullish and bearish scenarios say about BIOSK?
Our models span a range for Unibios Holdings S.A: cautious scenario €1.07, base €1.49, optimistic €1.91 per share (as of Sep 23, 2026, price €2.50). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of BIOSK?
Unibios Holdings S.A trades at a price-to-earnings ratio of 27.7 (as of Sep 23, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of €1.49 is built from several models across several years. Other multiples: P/B 2.6, P/S 3.5, EV/EBITDA 25.6.
How solid is the balance sheet of Unibios Holdings S.A (BIOSK)?
Balance-sheet figures for Unibios Holdings S.A (as of Sep 23, 2026): return on equity 7.7%, debt of 0.22 per unit of equity. They feed the Quality Score of 40/100, which measures business quality independently of the share price.
How far is BIOSK from its 52-week high?
Unibios Holdings S.A trades at €2.50, about 22% below its 52-week high of €3.18 and 14% above the low of €2.18 (as of Sep 24, 2026). Distance from the high says nothing about value: that is what the fair value of €1.49 is for.
Which stocks are comparable to Unibios Holdings S.A?
From the same area (Industrials) we also value Veralto Corporation, Zurn Elkay Water Solutions Corporation, Canmax Technologies Co, CECO Environmental Corp, 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 Unibios Holdings S.A stock attractive at the current price?
The data as of Sep 23, 2026: price €2.50, calculated fair value €1.49 (−40%), Quality Score 40/100, from 15 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 BIOSK calculated?
We run Unibios Holdings S.A through 15 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 €1.49, 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 13.0 % above its aggregate fair value. Unibios Holdings S.A 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 Unibios Holdings S.A (BIOSK)?
The closing price on Sep 24, 2026 was €2.50. Our model-based fair value is €1.49, about −40% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Unibios Holdings S.A right now?
The price sits above even our optimistic bull case (€1.91). The favourable scenario is already priced in. Weak quality (40/100) and above fair value at the same time, the margin of safety is missing on both counts.

Key figures of Unibios Holdings S.A

How large is the market capitalisation of Unibios Holdings S.A (BIOSK)?
The market capitalisation of Unibios Holdings S.A is €42.7M. 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 Unibios Holdings S.A (BIOSK)?
The price-to-sales ratio of Unibios Holdings S.A is 3.33 (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 Unibios Holdings S.A (BIOSK)?
Earnings per share at Unibios Holdings S.A are €0.0900 (price ÷ EPS = P/E 27.7). Earnings per share over the last twelve months: total profit spread across every single share.
What is the net margin of Unibios Holdings S.A (BIOSK)?
The net margin of Unibios Holdings S.A is 12.0% (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 Unibios Holdings S.A (BIOSK)?
The return on equity (ROE) of Unibios Holdings S.A is 7.7% (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 Unibios Holdings S.A (BIOSK)?
On an EBIT basis the return on assets of Unibios Holdings S.A 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 Unibios Holdings S.A (BIOSK)?
The operating margin of Unibios Holdings S.A is 4.7% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Unibios Holdings S.A (BIOSK)?
Revenue at Unibios Holdings S.A is growing −15.9% versus a year earlier (3y avg +7.3%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How fast are earnings growing at Unibios Holdings S.A (BIOSK)?
Earnings per share at Unibios Holdings S.A are growing −78.2% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does Unibios Holdings S.A (BIOSK) generate?
The free cash flow of Unibios Holdings S.A is −€1.6M (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net debt does Unibios Holdings S.A (BIOSK) carry?
The net debt of Unibios Holdings S.A is €3.3M (fiscal year 2025). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
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