STS Group AG (SF3) fair value: what the stock is really worth
As of Sep 24, 2026: fair value of STS Group AG €2.74, price €4.08, upside -32.8%, quality 53 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 €1.88 – €8.91 · fair‑value band €2.23 – €3.50 · the €4.08 price screens above the €2.74 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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STS Group AG supplies components and systems for the commercial vehicle and automotive industry in Germany, France, Mexico, the United States, and China. The company operates through three segments: Plastics, China, and Materials.
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STS Group AG supplies components and systems for the commercial vehicle and automotive industry in Germany, France, Mexico, the United States, and China. The company operates through three segments: Plastics, China, and Materials. It manufactures and sells interior systems and components, such as storage modules, including under bunk storage and upper shelf; exterior components comprising cab side modules, tailgates, rear lamp modules, and roof spoilers; and covers of battery system for electric vehicles for trucks, commercial vehicles, and passenger cars. The company also offers plastic parts for the exterior paneling of vehicles, such as bumpers, front panels, deflectors, roofs, mudguards, and entrances; and develops and produces sheet molding compounds, fiber molding compounds, and advanced fiber molding compounds. In addition, it provides prototyping and logistics services. The company was founded in 2013 and is based in Hagen, Germany. STS Group AG operates as a subsidiary of Adler Pelzer Holding GmbH.
Stock analysis
STS Group AG (SF3) currently trades at €4.08, while our model-based Fair Value estimate is €2.74, implying the stock looks roughly 48.9% overvalued today.
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Valuation
Bull case: the Economic Profit group reads highest at a median of €17.68 per share, and 14 of the 16 models we run sit above the €4.08 price.
Bear case: the Dividend Discount group reads lowest at €0.5900, and 2 of the 16 models stay below the price. Evidence for this calculation is medium.
Scenario range: €2.23 (bear) to €3.50 (bull), the price of €4.08 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 53/100 (solid quality), in the Consumer Cyclical sector.
Mixed Growth: Revenue is growing, but margins or cash flow do not fully confirm the trend.
STS Group AG reported revenue of €292M in FY2025 versus €242M in FY2021, a compound +4.8%/yr. Reported net income was −€500K in FY2025.
Key figures
Market cap €26.3M · P/S ratio 0.06 · EPS (TTM) €−0.0800 · Dividend yield 1.6% · Net margin −0.2% · Return on equity −1.1% · Return on assets (EBIT) 1.8% · Operating margin 2.3%.
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 20% below its 52-week high and 51% above its 52-week low, currently above its 200-day average.
For context, the median of 10 Consumer Cyclical peers we cover trades at −19% fair-value upside, at −33%, SF3 screens richer than that median.
Fair Value models
Bear €2.23Fair Value €2.74Bull €3.50
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.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.29/100
Revenue is growing, but margins or cash flow do not fully confirm the trend.
Revenue growth 1 year
−6.1%
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.
+7.5%
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.
+4.4%
Start year 2020 (pandemic). Over 10 years: +8.1% a year
Revenue growth 10 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.
+8.1%
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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.
−1.1% (2020) → 2.8% (2025)
What shareholders gained per year ⓘWe only publish this rate when it is defensible. Reason: fiscal 2025 is a loss year, no rate is defined from a loss
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.Auto Parts · 692 stocks
Beats the industry median on 5/11 measures
A mixed picture versus its industry peers.
Valuation
Quality Score53 · Above median
Fair Value upside−33% · Below median
Profitability
Return on assets2% · Below median
Net margin (TTM)0% · Bottom 25%
Operating margin (TTM)2% · Bottom 25%
Growth and dividend
Revenue growth−4% · Below median
Dividend yield (TTM)1.6% · Below median
Balance sheet
Debt / equity0.08× · Below median
Valuation Multiplesvs Auto Parts median · lower = cheaper
P/B0.70× · Cheapest 25%
P/S (TTM)0.10× · Cheapest 25%
P/FCF0.9× · Cheaper than median
Strength profile in five axes (Snowflake)
This stockSector peers
VALUE (fair-value potential)0· sector 24
FUTURE (revenue growth)0· sector 21
PAST (return on equity)0· sector 28
HEALTH (low debt)96· sector 95
DIVIDEND (yield)33· sector 38
VALUE 0: the price sits above our fair-value range.
For bloggers, editors and developers: paste this into your site or blog (a “Custom HTML” block in WordPress), it shows the current fair value and links back here. Free, plain HTML, and welcome. Full data streams (CSV/JSON) at /developers.
Cite: Fair Value Calculator (2026). "STS Group AG Fair Value". https://www.fairvalue-calculator.com/stock/SF3
Frequently asked questions
Is STS Group AG (SF3) overvalued or undervalued?
As of Sep 23, 2026, our model estimates a fair value of €2.74 versus a price of €4.08, about −33% upside (overvalued).
What is the fair value of SF3?
Our model-based fair value for STS Group AG is €2.74 (as of Sep 23, 2026), built from audited fundamentals. The current price: €4.08.
What is the quality score of SF3?
STS Group AG has a Quality Score of 53/100. 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 STS Group AG (SF3)?
Our model-based price target is the fair value of €2.74 (as of Sep 23, 2026) from 16 valuation models. Cautious scenario €2.23, optimistic scenario €3.50. It is a calculation from audited fundamentals, not an analyst target.
What is the STS Group AG stock forecast for 2026?
Our models put fair value at €2.74, about −33% upside versus a price of €4.08 (overvalued). Cautious scenario €2.23, optimistic scenario €3.50. The calculation is refreshed regularly with new filings.
What is the revenue of STS Group AG (SF3)?
STS Group AG reported trailing-twelve-month revenue of about €297M (latest available figure, as of Sep 23, 2026).
Does STS Group AG pay a dividend?
STS Group AG currently shows a dividend yield of about 1.63% relative to its recent price (as of Sep 23, 2026).
What is the intrinsic value of STS Group AG (SF3)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For STS Group AG it is €2.74 per share (as of Sep 23, 2026), against a price of €4.08. It is the blended result of 16 valuation models (cash flow, earnings, asset, dividend).
Is STS Group AG stock overvalued or undervalued in 2026?
As of Sep 23, 2026, SF3 trades above its calculated fair value: price €4.08, fair value €2.74, a gap of about −33% (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 SF3?
No. The price is what the market pays today (€4.08); the fair value is what the company's own numbers justify (€2.74). For STS Group AG the two are €1.34 per share apart. That gap is exactly why we show both numbers side by side.
How much is STS Group AG worth?
The market values STS Group AG at about €26.3M (market capitalisation, as of Sep 23, 2026). Per share that is €4.08; our models calculate a fair value of €2.74 per share.
What do the bullish and bearish scenarios say about SF3?
Our models span a range for STS Group AG: cautious scenario €2.23, base €2.74, optimistic €3.50 per share (as of Sep 23, 2026, price €4.08). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of STS Group AG (SF3)?
Balance-sheet figures for STS Group AG (as of Sep 23, 2026): return on equity −1.1%, debt of 0.08 per unit of equity. They feed the Quality Score of 53/100, which measures business quality independently of the share price.
How far is SF3 from its 52-week high?
STS Group AG trades at €4.08, about 20% below its 52-week high of €5.10 and 51% above the low of €2.70 (as of Sep 24, 2026). Distance from the high says nothing about value: that is what the fair value of €2.74 is for.
Which stocks are comparable to STS Group AG?
From the same area (Consumer Cyclical) we also value O'Reilly Automotive, Inc, AutoZone, Inc, Hyundai Mobis Co, Fuyao Glass Industry Group, 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 STS Group AG stock attractive at the current price?
The data as of Sep 23, 2026: price €4.08, calculated fair value €2.74 (−33%), Quality Score 53/100, from 16 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 SF3 calculated?
We run STS Group AG through 16 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 €2.74, 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 14.0 % above its aggregate fair value. STS Group AG 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 STS Group AG (SF3)?
The closing price on Sep 24, 2026 was €4.08. Our model-based fair value is €2.74, about −33% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with STS Group AG right now?
The price sits above even our optimistic bull case (€3.50). The favourable scenario is already priced in. Solid but not exceptional quality (53/100) and above fair value, neither a clear bargain nor a standout compounder.
Key figures of STS Group AG
How large is the market capitalisation of STS Group AG (SF3)?
The market capitalisation of STS Group AG is €26.3M. 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 STS Group AG (SF3)?
The price-to-sales ratio of STS Group AG is 0.06 (last twelve months). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What are the earnings per share of STS Group AG (SF3)?
Earnings per share at STS Group AG are €−0.0800. Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of STS Group AG (SF3)?
The dividend yield of STS Group AG is 1.6%. 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 STS Group AG (SF3)?
The net margin of STS Group AG is −0.2% (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 STS Group AG (SF3)?
The return on equity (ROE) of STS Group AG is −1.1% (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 STS Group AG (SF3)?
On an EBIT basis the return on assets of STS Group AG is 1.8% (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 STS Group AG (SF3)?
The operating margin of STS Group AG is 2.3% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at STS Group AG (SF3)?
Revenue at STS Group AG is growing −4.0% versus a year earlier (3y avg +7.5%). 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 STS Group AG (SF3)?
Earnings per share at STS Group AG are growing +93.5% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does STS Group AG (SF3) generate?
The free cash flow of STS Group AG is €33.3M (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 STS Group AG (SF3) carry?
The net debt of STS Group AG is €14.4M (fiscal year 2025, ≈ 0.4 yrs of FCF). 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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