Sto SE & Co. KGaA (STO3) fair value: what the stock is really worth
As of Sep 23, 2026: fair value of Sto SE & Co. KGaA €123, price €98.20, upside +25.5%, quality 55 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.
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Price vs Fair Value
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 €91.30 – €234.16 · fair‑value band €92.46 – €154.09 · the €98.20 price screens below the €123.27 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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Sto SE & Co. KGaA manufactures and sells products, components, and functional systems for building coatings and energy-efficient building solutions in Europe, and internationally.
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Sto SE & Co. KGaA manufactures and sells products, components, and functional systems for building coatings and energy-efficient building solutions in Europe, and internationally. It offers facade systems, including external wall insulation and rainscreen cladding facade systems; facade coatings, such as render and paint systems; and interior products comprising plaster and paint systems for living and office interiors, decorative coatings, and interior claddings, as well as acoustic systems for regulating room sounds. The company also offers floor coatings; and products for concrete repair. It serves professional customers comprising painters, plasterers, and construction companies; and architects, planning offices, and the real estate industry. The company was founded in 1955 and is headquartered in Stühlingen, Germany. Sto SE & Co. KGaA operates as a subsidiary of Stotmeister Beteiligungs GmbH.
Stock analysis
Sto SE & Co. KGaA (STO3) currently trades at €98.20, while our model-based Fair Value estimate is €123.27, implying the stock looks roughly 20.3% undervalued today.
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Valuation
Bull case: the DCF Models group reads highest at a median of €163.88 per share, and 19 of the 24 models we run sit above the €98.20 price.
Bear case: the Dividend Discount group reads lowest at €38.07, and 5 of the 24 models stay below the price. Evidence for this calculation is high.
Scenario range: €92.46 (bear) to €154.09 (bull), the price of €98.20 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 55/100 (solid quality), in the Industrials sector.
Weak Growth: Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.
Sto SE & Co. KGaA reported revenue of €1.6B in FY2025 versus €1.6B in FY2021, a compound +0.0%/yr. Reported net income was €39.2M in FY2025, compounding −19.4%/yr from FY2021.
Key figures
Market cap €623M · P/E ratio 16.0 · P/S ratio 0.39 · EPS (TTM) €6.07 · Dividend yield 3.4% · Net margin 2.5% · Return on equity 5.2% · Return on assets (EBIT) 15.4%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 48 out of 100 (low confidence).
What moves the price
The share trades about 25% below its 52-week high and 8% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Industrials peers we cover trades at −20% fair-value upside, at 26%, STO3 screens cheaper than that median.
Fair Value models
Bear €92.46Fair Value €123.27Bull €154.09
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 (€2.02 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.
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
−1.3%
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.
−3.8%
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.
+2.1%
Start year 2020 (pandemic). Over 10 years: +2.7% a year
Revenue growth 17 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.
+3.1%
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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.
−7.4%
Earnings growth per share plus dividend.
Earnings per share, growth per year−10.8%
Dividend (yield on the price)3.4%
Pace: 5 vs 10 years ⓘTwo data points, not a trend model: earnings growth per share over the last 5 fiscal years against the last 10. Labelled "steady" when both rates are within 3 percentage points of each other, otherwise picking up or flattening. Shown only when ten years of history exist.−14% vs −2%, slowing
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.10% → 5%
Start year 2020 (pandemic)
Growth Forecast
Little optimism in the price
The price assumes less growth than the company has delivered so far.
What the price assumes ⓘThis turns our valuation around: instead of asking what the share is worth, it asks what growth the current price requires. It uses the cash the company keeps after all spending (free cash flow), the same discount rate as our models, five years of growth, then slowing evenly to 2 % a year by year ten. Compared with the analysts' sales forecasts extended to the same five years (at least three analysts, for context only, it does not enter the Fair Value): within 3 percentage points counts as "in line" (amber), below that little optimism (green), above that a lot of optimism (red).
−15.6%
Yearly growth needed for the next five years to justify today's price.
What forecasts expect
n/a
No analyst forecast available.
After inflation (euro area: IMF forecast 2.2% a year to 2030, 2.6% from 2016 to 2025) that is about −17.4% a year for the price.
Price, fair value, quality and upside side by side.
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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.Building Products & Equipment · 253 stocks
Beats the industry median on 7/13 measures
A mixed picture versus its industry peers.
Valuation
Quality Score55 · Below median
Fair Value upside+26% · Above median
Profitability
Return on equity (TTM)5% · Below median
Return on assets3% · Above median
Net margin (TTM)2% · Below median
Operating margin (TTM)5% · Below median
Growth and dividend
Revenue growth0% · Below median
Dividend yield (TTM)3.4% · Above median
Valuation Multiplesvs Building Products & Equipment median · lower = cheaper
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Cite: Fair Value Calculator (2026). "Sto SE & Co. KGaA Fair Value". https://www.fairvalue-calculator.com/stock/STO3
Frequently asked questions
Is Sto SE & Co. KGaA (STO3) overvalued or undervalued?
As of Sep 23, 2026, our model estimates a fair value of €123.27 versus a price of €98.20, about +26% upside (undervalued).
What is the fair value of STO3?
Our model-based fair value for Sto SE & Co. KGaA is €123.27 (as of Sep 23, 2026), built from audited fundamentals. The current price: €98.20.
What is the quality score of STO3?
Sto SE & Co. KGaA has a Quality Score of 55/100. 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 Sto SE & Co. KGaA (STO3)?
Our model-based price target is the fair value of €123.27 (as of Sep 23, 2026) from 24 valuation models. Cautious scenario €92.46, optimistic scenario €154.09. It is a calculation from audited fundamentals, not an analyst target.
What is the Sto SE & Co. KGaA stock forecast for 2026?
Our models put fair value at €123.27, about +26% upside versus a price of €98.20 (undervalued). Cautious scenario €92.46, optimistic scenario €154.09. The calculation is refreshed regularly with new filings.
What is the revenue of Sto SE & Co. KGaA (STO3)?
Sto SE & Co. KGaA reported trailing-twelve-month revenue of about €1.6B (latest available figure, as of Sep 23, 2026).
Does Sto SE & Co. KGaA pay a dividend?
Sto SE & Co. KGaA currently shows a dividend yield of about 3.37% relative to its recent price (as of Sep 23, 2026).
What growth is priced into Sto SE & Co. KGaA (STO3)?
For today's price to be fair in a discounted-cash-flow model, Sto SE & Co. KGaA would have to grow free cash flow by -15.6 % per year for five years (discount rate 10.4 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +2.1 % per year. As of Sep 23, 2026.
What discount rate (WACC) does the fair value of STO3 use?
Our models discount Sto SE & Co. KGaA at 10.4 %: a base by market capitalisation (small), damped by beta 0.79, country premium for Germany. The same rate applies in all 26 models.
What is a reverse DCF?
A reverse DCF turns the usual calculation around. Instead of deriving a value from assumptions, it takes today's price as given and asks: what free-cash-flow growth would a company have to deliver for exactly this price to be fair? The result is not a forecast but the expectation already priced in. For Sto SE & Co. KGaA that is -15.6 % per year a year over ten years, using the same discount rate (10.4 %) and the same formula as our fair value.
How much growth has Sto SE & Co. KGaA (STO3) delivered so far?
Over the past 5 years revenue at Sto SE & Co. KGaA grew +2.1 % a year. The price currently implies -15.6 % per year free-cash-flow growth a year. Comparing the two shows how much confidence is in the price: if it demands more than has been delivered, the business has to accelerate for the maths to work.
How fast is the sector of Sto SE & Co. KGaA (STO3) growing?
The median revenue growth in the sector is +4.7 % a year. That is the yardstick for the growth priced into Sto SE & Co. KGaA (-15.6 % per year a year): it shows whether the expectation is within the usual range or beyond it.
What is the free cash flow yield of Sto SE & Co. KGaA (STO3)?
The free-cash-flow yield on the price is 11.07 %: that much free cash flow Sto SE & Co. KGaA produces per unit of market value. When it exceeds the discount rate of our models (10.4 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of Sto SE & Co. KGaA (STO3)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Sto SE & Co. KGaA it is €123.27 per share (as of Sep 23, 2026), against a price of €98.20. It is the blended result of 24 valuation models (cash flow, earnings, asset, dividend).
Is Sto SE & Co. KGaA stock overvalued or undervalued in 2026?
As of Sep 23, 2026, STO3 trades below its calculated fair value: price €98.20, fair value €123.27, a gap of about +26% (undervalued). 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 STO3?
No. The price is what the market pays today (€98.20); the fair value is what the company's own numbers justify (€123.27). For Sto SE & Co. KGaA the two are €25.07 per share apart. That gap is exactly why we show both numbers side by side.
How much is Sto SE & Co. KGaA worth?
The market values Sto SE & Co. KGaA at about €623M (market capitalisation, as of Sep 23, 2026). Per share that is €98.20; our models calculate a fair value of €123.27 per share.
What do the bullish and bearish scenarios say about STO3?
Our models span a range for Sto SE & Co. KGaA: cautious scenario €92.46, base €123.27, optimistic €154.09 per share (as of Sep 23, 2026, price €98.20). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of STO3?
Sto SE & Co. KGaA trades at a price-to-earnings ratio of 16.0 (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 €123.27 is built from several models across several years. Other multiples: P/B 0.9, P/S 0.4, EV/EBITDA 5.6.
How solid is the balance sheet of Sto SE & Co. KGaA (STO3)?
Balance-sheet figures for Sto SE & Co. KGaA (as of Sep 23, 2026): return on equity 5.2%. They feed the Quality Score of 55/100, which measures business quality independently of the share price.
How far is STO3 from its 52-week high?
Sto SE & Co. KGaA trades at €98.20, about 25% below its 52-week high of €131.40 and 8% above the low of €91.30 (as of Sep 23, 2026). Distance from the high says nothing about value: that is what the fair value of €123.27 is for.
Which stocks are comparable to Sto SE & Co. KGaA?
From the same area (Industrials) we also value Trane Technologies plc, Johnson Controls International plc, Carrier Global Corporation, Compagnie de Saint-Gobain S.A, 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 Sto SE & Co. KGaA stock attractive at the current price?
The data as of Sep 23, 2026: price €98.20, calculated fair value €123.27 (+26%), Quality Score 55/100, from 24 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 STO3 calculated?
We run Sto SE & Co. KGaA through 24 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 €123.27, 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 14.1 % above its aggregate fair value. Sto SE & Co. KGaA currently trades 26 % below its own fair value, and the market average says nothing about that. 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 Sto SE & Co. KGaA (STO3)?
The closing price on Sep 23, 2026 was €98.20. Our model-based fair value is €123.27, about +26% upside (undervalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Sto SE & Co. KGaA right now?
Solid quality (55/100) at a price below fair value, the discount is the argument here, not the business quality. The price sits in the lower half of our model range, the side with the larger margin of safety. The data supports the verdict: every model runs on fully documented inputs.
Where does the earnings growth of Sto SE & Co. KGaA (STO3) come from?
Earnings per share at Sto SE & Co. KGaA grew +1.7 % a year from 2014 to 2025. Broken into its drivers: revenue per share +5.5 %, EBIT margin −2.0 %, tax rate −0.7 %, residual (interest, one-offs) −1.0 %. The four rates multiply to the earnings growth rate, they do not add up. Start and end are three-year averages so a single exceptional year does not distort the result.
Key figures of Sto SE & Co. KGaA
How large is the market capitalisation of Sto SE & Co. KGaA (STO3)?
The market capitalisation of Sto SE & Co. KGaA is €623M. 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 Sto SE & Co. KGaA (STO3)?
The price-to-sales ratio of Sto SE & Co. KGaA is 0.39 (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 Sto SE & Co. KGaA (STO3)?
Earnings per share at Sto SE & Co. KGaA are €6.07 (price ÷ EPS = P/E 16.0). Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of Sto SE & Co. KGaA (STO3)?
The dividend yield of Sto SE & Co. KGaA is 3.4% (payout 54.5%). Yearly dividend relative to the share price. 3% pays 3 per 100 invested. Below: how much of profit is used for it.
What is the net margin of Sto SE & Co. KGaA (STO3)?
The net margin of Sto SE & Co. KGaA is 2.5% (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 Sto SE & Co. KGaA (STO3)?
The return on equity (ROE) of Sto SE & Co. KGaA is 5.2% (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 Sto SE & Co. KGaA (STO3)?
On an EBIT basis the return on assets of Sto SE & Co. KGaA is 15.4% (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 Sto SE & Co. KGaA (STO3)?
The operating margin of Sto SE & Co. KGaA is 4.8% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Sto SE & Co. KGaA (STO3)?
Revenue at Sto SE & Co. KGaA is growing −0.3% versus a year earlier (3y avg −3.8%). 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 Sto SE & Co. KGaA (STO3)?
Earnings per share at Sto SE & Co. KGaA are growing +32.8% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net cash does Sto SE & Co. KGaA (STO3) hold?
Sto SE & Co. KGaA holds more cash than debt, €2.8M net (fiscal year 2025). The company holds more cash than debt, a safety cushion.
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