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STS Group AG (SF3) fair value: what the stock is really worth

As of Nov 6, 2026: fair value (intrinsic value) of STS Group AG stock €11.82, price €3.94, upside +200.0%, quality 55 out of 100. Rating: strongly undervalued. Calculated from audited financials with 14 of our 26 valuation models and 37 quality factors, updated daily.

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Consumer Cyclical DE · ISIN DE000A1TNU68

SG STS Group AG logo Thin data Nov 9, 2026

STS Group AG

SF3 · XETRA
Meets all rules

The stock costs 67% less than our calculation considers fair.

Fair value €11.82 · Strongly undervalued
Low debt
Generates free cash flow
Ranks above peers (8/13)
Even on cautious assumptions the value is 139% above the price (€9.40).
Quality 55/100
Mixed Growth (revenue 5y +4.4 %/yr in EUR)
Thin margins · 0.9% net margin (TTM)
Narrow moat 32/100 · thin data
Thin data
⟳ Cyclical
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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

€8.91 €1.88 Fair Value €11.82 Apr 2020 Nov 2026

White line = price, green steps = our fair value per fiscal year. As of Nov 9, 2026.

How to read this chart

60‑month range €1.88 – €8.91 · fair‑value band €9.40 – €15.09 · the €3.94 price screens below the €11.82 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 9, 2026.

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Company profile

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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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 €3.94, while our model-based Fair Value estimate is €11.82, implying the stock looks roughly 67% undervalued today.

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Valuation

Bull case: the Growth DCF group reads highest at a median of €74.30 per share, and 13 of the 14 models we run sit above the €3.94 price.

Bear case: the Asset-Based group reads lowest at €2.85, and 1 of the 14 models stay below the price. Data coverage for this calculation is low.

Scenario range: €9.40 (bear) to €15.09 (bull), the price of €3.94 sits below 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 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 €26.5M Micro · P/E ratio 9.4 · P/S ratio 0.10 · EPS (TTM) €0.4200 · Dividend yield 1.1% · Net margin 0.9% · Return on equity 6.3% · Return on assets (EBIT) 1.8% (5-year average).

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 32 out of 100 (low confidence).

What moves the price

The share trades about 21% below its 52-week high and 46% above its 52-week low, currently above its 200-day average.

For context, the median of 10 Consumer Cyclical peers we cover trades at −23% fair-value upside, at 200%, SF3 screens cheaper than that median.

Fair Value models

Bear €9.40 Fair Value €11.82 Bull €15.09
Price €3.94 · Upside +200.0%
Capped: our models arrive at a very high value here. We deliberately show a more cautious Fair Value.
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above starts from their evidence-weighted blend, not from a single model. In cyclical trough or peak years, after dilution or a stock split it is adjusted afterwards, so it can sit above or below the models. Based on fiscal year 2025 figures (about 10 months old). Earnings retained since then (€0.3602 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. Coverage ⓘCoverage = 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.
Best data coverage
FCF DCF €72.32 €103.81 €150.38 80
Growth DCF €74.50 €103.97 €145.74 79
Owner Earnings €50.78 €72.19 €103.87 77
All 14 models by family
DCF Models
FCF DCF €72.32 €103.81 €150.38 80
Owner Earnings €50.78 €72.19 €103.87 77
5Y Revenue Exit €35.83 €43.41 €51.98 74
5Y EBITDA Exit €48.73 €66.36 €85.60 76
10Y Revenue Exit €48.17 €57.50 €67.80 68
10Y EBITDA Exit €56.72 €73.27 €92.72 70
Earnings-Based
EPV €16.40 €18.38 €20.14 74
Multiples
EV/EBIT €15.14 €20.93 €26.72 66
EV/EBITDA €33.07 €44.84 €56.60 67
EV/Revenue €9.48 €14.50 €19.51 53
Asset-Based
NCAV (Graham) €2.12 €2.85 €4.25 54
Growth DCF
Growth DCF €74.50 €103.97 €145.74 79
Rev-Margin DCF €35.83 €44.63 €54.59 74
Economic Profit
ROIC Compounder €16.65 €18.99 €21.28 72

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Quality Score breakdown

Overall quality 55/100

It rates the business: profits, how they develop, real cash, balance sheet, investing and share count.

Profitability 36
How much profit the company makes from its sales and capital
Quality Growth 26
Are margins and returns getting better?
Cashflow 65
Do the profits arrive as real cash?
Financial strength 36
Debt, balance sheet and risk of trouble
Investment 96
Does it invest with discipline instead of growing at any price?
Low Volatility 62
How calm the share price moves, does not count
Price momentum 61
Price momentum of the last 3 to 12 months, does not count
Near the 52-week high 47
Distance to the 52-week high, does not count
New shares 82
Buys back shares or issues new ones?

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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. 43/100
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%
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
not computed

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Compare STS Group AG 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.Auto Parts · 655 stocks

Beats the industry median on 8/13 measures
Overall it ranks above its industry peers.
Valuation
Quality Score 55 · Above median
Fair Value upside +200.0% · Top 25%
Profitability
Return on equity (12 months) 6.3% · Below median
Return on assets −0.2% · Bottom 25%
Net margin (12 months) 0.9% · Bottom 25%
Operating margin (12 months) 4.1% · Below median
Growth and dividend
Revenue growth (quarter YoY) 10.5% · Above median
Dividend yield (12 months) 1.1% · Below median
Balance sheet
Debt / equity 0.08× · Below median

Valuation Multiplesvs Auto Parts median · lower = cheaper

P/E (12 months) 9.4× · Cheapest 25%
P/B 0.69× · Cheapest 25%
P/S (12 months) 0.10× · Cheapest 25%
Price / free cash flow (fiscal year) 0.9× · Cheapest 25%

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)100 · sector 33
FUTURE (revenue growth)53 · sector 34
PAST (return on equity)25 · sector 31
HEALTH (low debt)96 · sector 95
DIVIDEND (yield)21 · sector 39

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 Auto Parts stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value Compare
Magna International Inc MGA $61.86 $98.98 +60% vs SF3
Hyundai Mobis Co 012330 349,000 KRW 534,994 KRW +53% vs SF3
Genuine Parts Company GPC $122.80 $115.96 −6% vs SF3
Knorr-Bremse AG KBX €94.45 €72.88 −23% vs SF3
AutoZone, Inc AZO $3,216 $2,468 −23% vs SF3
Fuyao Glass Industry Group 600660 ¥55.92 ¥40.74 −27% vs SF3
Ningbo Tuopu Group 601689 ¥44.71 ¥32.24 −28% vs SF3
Samvardhana Motherson International Limited MOTHERSON ₹158.55 ₹96.06 −39% vs SF3
O'Reilly Automotive, Inc ORLY $89.89 $48.66 −46% vs SF3
Bosch Limited BOSCHLTD ₹50,700 ₹25,168 −50% vs SF3

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STS Group AG: fair value per Fair Value Calculator

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 Nov 9, 2026, our model estimates a fair value of €11.82 versus a price of €3.94, about +200% upside (undervalued).
What is the fair value of SF3?
Our model-based fair value for STS Group AG is €11.82 (as of Nov 9, 2026), built from audited fundamentals. The current price: €3.94.
What is the quality score of SF3?
STS Group AG 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 STS Group AG (SF3)?
Our model-based price target is the fair value of €11.82 (as of Nov 9, 2026) from 14 valuation models. Cautious scenario €9.40, optimistic scenario €15.09. 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 €11.82, about +200% upside versus a price of €3.94 (undervalued). Cautious scenario €9.40, optimistic scenario €15.09. 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 €312M (latest available figure, as of Nov 9, 2026).
Does STS Group AG pay a dividend?
STS Group AG currently shows a dividend yield of 1.07% relative to its recent price (as of Nov 9, 2026).
How much is the dividend of STS Group AG (SF3)?
STS Group AG has a dividend yield of 1.1%.
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 €11.82 per share (as of Nov 9, 2026), against a price of €3.94. It is the blended result of 14 valuation models in 6 families (DCF Models, Earnings-Based, Multiples, Asset-Based, Growth DCF, Economic Profit).
Is STS Group AG stock overvalued or undervalued in 2026?
As of Nov 9, 2026, SF3 trades below its calculated fair value: price €3.94, fair value €11.82, a gap of about +200% (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 SF3?
No. The price is what the market pays today (€3.94); the fair value is what the company's own numbers justify (€11.82). For STS Group AG the two are €7.88 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 €26.5M (market capitalisation, as of Nov 9, 2026). Per share that is €3.94; our models calculate a fair value of €11.82 per share.
What do the bullish and bearish scenarios say about SF3?
Our models span a range for STS Group AG: cautious scenario €9.40, base €11.82, optimistic €15.09 per share (as of Nov 9, 2026, price €3.94). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of SF3?
STS Group AG trades at a price-to-earnings ratio of 9.4 (as of Nov 9, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of €11.82 is built from several models across several years. Other multiples: P/B 0.7, P/S 0.1.
How solid is the balance sheet of STS Group AG (SF3)?
Balance-sheet figures for STS Group AG (as of Nov 9, 2026): return on equity 6.3%, debt of 0.08 per unit of equity. They feed the Quality Score of 55/100, which measures business quality independently of the share price.
How far is SF3 from its 52-week high?
STS Group AG trades at €3.94, about 21% below its 52-week high of €4.99 and 46% above the low of €2.70 (as of Nov 6, 2026). Distance from the high says nothing about value: that is what the fair value of €11.82 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 Nov 9, 2026: price €3.94, calculated fair value €11.82 (+200%), Quality Score 55/100, from 14 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 14 models from 6 families: DCF Models, Earnings-Based, Multiples, Asset-Based, Growth DCF, Economic Profit. Every model gets the same audited fundamentals; the fair value of €11.82 builds on their evidence-weighted average, 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 13.3% above its aggregate fair value. STS Group AG currently trades 67% 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 STS Group AG (SF3)?
The closing price on Nov 6, 2026 was €3.94. Our model-based fair value is €11.82, about +200% upside (undervalued). 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 is below even our cautious bear case (€9.40). The market is more pessimistic than our downside scenario. The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution. Solid quality (55/100) at a price below fair value, the discount is the argument here, not the business quality.

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 €26.5M. 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 0.10 (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 €0.4200 (price ÷ EPS = P/E 9.4). 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 1.1% (payout 10.1%). 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 0.9% (last twelve months). 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 6.3% (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 4.1% (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 +10.5% 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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