Bertrandt Aktiengesellschaft (BDT) fair value: what the stock is really worth
As of Nov 9, 2026: fair value (intrinsic value) of Bertrandt Aktiengesellschaft stock €15.32, price €8.00, upside +91.5%, quality 45 out of 100. Rating: strongly undervalued. Calculated from audited financials with 8 of our 26 valuation models and 37 quality factors, updated daily.
69 individual criteria per stock, every one traceableSee the method →
Price vs Fair Value
White line = price, green steps = our fair value per fiscal year. As of Nov 8, 2026.
How to read this chart
60‑month range €7.68 – €59.45 · fair‑value band €11.23 – €19.88 · the €8.00 price screens below the €15.32 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 8, 2026.
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Bertrandt provides engineering services. It operates through three segments: Digital Engineering, Physical Engineering, and Electrical Systems/Electronics. The Digital Engineering segment includes vehicle development services.
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The Physical Engineering segment undertakes business activities related to the testing and validation of and with physical component parts, components, systems and the vehicles.
The Electrical Systems/Electronics segment manages software solutions, autonomous mobility, smart infotainment systems, alternative drive solutions, and strong virtual testing expertise. The company also engages in the testing, planning, project management, and CAD activities.
It serves automotive, aerospace, mechanical and plant engineering, electrical, energy, and medical engineering sectors. It operates in approximately 50 locations in Germany, rest of Europe, Asia, Africa, and the United States. The company was founded in 1974 and is based in Ehningen, Germany.
Stock analysis
Bertrandt Aktiengesellschaft (BDT) currently trades at €8.00, while our model-based Fair Value estimate is €15.32, implying the stock looks roughly 48% undervalued today.
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Valuation
Bull case: the Asset-Based group reads highest at a median of €17.03 per share, and 7 of the 8 models we run sit above the €8.00 price.
Bear case: the Multiples group reads lowest at €4.81, and 1 of the 8 models stay below the price. Data coverage for this calculation is low.
Scenario range: €11.23 (bear) to €19.88 (bull), the price of €8.00 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 45/100 (below-average quality), in the Consumer Cyclical sector.
Weak Growth: Growth has flattened: the last year, three and five years all grew more slowly than the long-term average.
Bertrandt Aktiengesellschaft reported revenue of €977M in FY2025 versus €849M in FY2021, a compound +3.6%/yr. Reported net income was −€53.8M in FY2025.
Key figures
Market cap €80.8M Micro · P/S ratio 0.09 · EPS (TTM) €−4.77 · Dividend yield 3.2% · Net margin −5.3% · Return on equity −18.3% · Return on assets (EBIT) −1.0% (5-year average) · Operating margin −7.6%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 10 out of 100 (low confidence).
What moves the price
The share trades about 60% below its 52-week high and 4% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Consumer Cyclical peers we cover trades at −23% fair-value upside, at 92%, BDT screens cheaper than that median.
Fair Value models
Bear€11.23Fair Value €15.32Bull€19.88
Price €8.00 · Upside +91.5%
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.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.
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.26/100
Growth has flattened: the last year, three and five years all grew more slowly than the long-term average.
Revenue growth 1 year
−17.6%
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.
−1.1%
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.
+1.3%
Start year 2020 (pandemic). Over 10 years: +0.4% a year
Revenue growth 23 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.
+6.5%
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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.
1.5% (2020) → −3.4% (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
Growth Forecast
A lot of optimism in the price
The price assumes more growth than the company has delivered so far and more than analysts expect.
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).
+28.0%
Yearly growth needed for the next five years to justify today's price.
What forecasts expect ⓘAnalysts publish sales forecasts for the next two fiscal years. For the years after that, growth slows evenly to 2 % a year by year ten (2 % is the long-run rate our models use). Projected years are marked as such.
−0.2%
Yearly sales growth analysts expect, extended to five years.
After inflation (euro area: IMF forecast 2.2% a year to 2030, 2.6% from 2016 to 2025) that is about +25.3% a year for the price and −2.3% for the forecasts.
Compare Bertrandt Aktiengesellschaft with another stock
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 · 653 stocks
Beats the industry median on 5/12 measures
A mixed picture versus its industry peers.
Valuation
Quality Score45 · Below median
Fair Value upside+91.5% · Top 25%
Profitability
Return on assets−7.1% · Bottom 25%
Net margin (12 months)−5.3% · Bottom 25%
Operating margin (12 months)−7.6% · Bottom 25%
Growth and dividend
Revenue growth (quarter YoY)−4.7% · Bottom 25%
Dividend yield (12 months)3.2% · Above median
Balance sheet
Debt / equity0.33× · Highest 25%
Valuation Multiplesvs Auto Parts median · lower = cheaper
P/B0.26× · Cheapest 25%
P/S (12 months)0.09× · Cheapest 25%
Price / free cash flow (fiscal year)14.4× · Cheaper than median
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). "Bertrandt Aktiengesellschaft Fair Value". https://www.fairvalue-calculator.com/stock/BDT.XETRA
Frequently asked questions
Is Bertrandt Aktiengesellschaft (BDT) overvalued or undervalued?
As of Nov 8, 2026, our model estimates a fair value of €15.32 versus a price of €8.00, about +92% upside (undervalued).
What is the fair value of BDT?
Our model-based fair value for Bertrandt Aktiengesellschaft is €15.32 (as of Nov 8, 2026), built from audited fundamentals. The current price: €8.00.
What is the quality score of BDT?
Bertrandt Aktiengesellschaft has a Quality Score of 45/100. 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 Bertrandt Aktiengesellschaft (BDT)?
Our model-based price target is the fair value of €15.32 (as of Nov 8, 2026) from 8 valuation models. Cautious scenario €11.23, optimistic scenario €19.88. It is a calculation from audited fundamentals, not an analyst target.
What is the Bertrandt Aktiengesellschaft stock forecast for 2026?
Our models put fair value at €15.32, about +92% upside versus a price of €8.00 (undervalued). Cautious scenario €11.23, optimistic scenario €19.88. The calculation is refreshed regularly with new filings.
What is the revenue of Bertrandt Aktiengesellschaft (BDT)?
Bertrandt Aktiengesellschaft reported trailing-twelve-month revenue of about €908M (latest available figure, as of Nov 8, 2026).
Does Bertrandt Aktiengesellschaft pay a dividend?
Bertrandt Aktiengesellschaft currently shows a dividend yield of 3.20% relative to its recent price (as of Nov 8, 2026).
How much is the dividend of Bertrandt Aktiengesellschaft (BDT)?
Bertrandt Aktiengesellschaft has a dividend yield of 3.2%.
What growth is priced into Bertrandt Aktiengesellschaft (BDT)?
For today's price to be fair in a discounted-cash-flow model, Bertrandt Aktiengesellschaft would have to grow free cash flow by +28.0 % per year for five years (discount rate 11.6 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +1.3 % per year. As of Nov 8, 2026.
What discount rate (WACC) does the fair value of BDT use?
Our models discount Bertrandt Aktiengesellschaft at 11.6 %: a base by market capitalisation (micro), damped by beta 0.71, 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 Bertrandt Aktiengesellschaft that is +28.0 % per year for five years, then slowing evenly to 2 % by year ten, using the same discount rate (11.6 %) and the same formula as our fair value.
How much growth has Bertrandt Aktiengesellschaft (BDT) delivered so far?
Over the past 5 years revenue at Bertrandt Aktiengesellschaft grew +1.3 % a year. The price currently implies free-cash-flow growth of +28.0 % per 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 Bertrandt Aktiengesellschaft (BDT) growing?
The median revenue growth in the sector is +4.8 % a year. That is the yardstick for the growth priced into Bertrandt Aktiengesellschaft (+28.0 % per year): it shows whether the expectation is within the usual range or beyond it.
What is the free cash flow yield of Bertrandt Aktiengesellschaft (BDT)?
The free-cash-flow yield on the price is 6.95 %: that much free cash flow Bertrandt Aktiengesellschaft produces per unit of market value. When it exceeds the discount rate of our models (11.6 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of Bertrandt Aktiengesellschaft (BDT)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Bertrandt Aktiengesellschaft it is €15.32 per share (as of Nov 8, 2026), against a price of €8.00. It is the blended result of 8 valuation models in 4 families (DCF Models, Multiples, Asset-Based, Growth DCF).
Is Bertrandt Aktiengesellschaft stock overvalued or undervalued in 2026?
As of Nov 8, 2026, BDT trades below its calculated fair value: price €8.00, fair value €15.32, a gap of about +92% (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 BDT?
No. The price is what the market pays today (€8.00); the fair value is what the company's own numbers justify (€15.32). For Bertrandt Aktiengesellschaft the two are €7.32 per share apart. That gap is exactly why we show both numbers side by side.
How much is Bertrandt Aktiengesellschaft worth?
The market values Bertrandt Aktiengesellschaft at about €80.8M (market capitalisation, as of Nov 8, 2026). Per share that is €8.00; our models calculate a fair value of €15.32 per share.
What do the bullish and bearish scenarios say about BDT?
Our models span a range for Bertrandt Aktiengesellschaft: cautious scenario €11.23, base €15.32, optimistic €19.88 per share (as of Nov 8, 2026, price €8.00). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the PEG ratio of BDT?
The PEG ratio of Bertrandt Aktiengesellschaft is 1.81 (P/E divided by earnings growth, as of Nov 8, 2026). That is above 1, so the growth is already paid for in the price.
How solid is the balance sheet of Bertrandt Aktiengesellschaft (BDT)?
Balance-sheet figures for Bertrandt Aktiengesellschaft (as of Nov 8, 2026): return on equity −18.3%, debt of 0.33 per unit of equity. They feed the Quality Score of 45/100, which measures business quality independently of the share price.
How far is BDT from its 52-week high?
Bertrandt Aktiengesellschaft trades at €8.00, about 60% below its 52-week high of €20.00 and 4% above the low of €7.68 (as of Nov 9, 2026). Distance from the high says nothing about value: that is what the fair value of €15.32 is for.
Which stocks are comparable to Bertrandt Aktiengesellschaft?
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 Bertrandt Aktiengesellschaft stock attractive at the current price?
The data as of Nov 8, 2026: price €8.00, calculated fair value €15.32 (+92%), Quality Score 45/100, from 8 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 BDT calculated?
We run Bertrandt Aktiengesellschaft through 8 models from 4 families: DCF Models, Multiples, Asset-Based, Growth DCF. Every model gets the same audited fundamentals; the fair value of €15.32 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. Bertrandt Aktiengesellschaft currently trades 48% 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 Bertrandt Aktiengesellschaft (BDT)?
The closing price on Nov 9, 2026 was €8.00. Our model-based fair value is €15.32, about +92% upside (undervalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Bertrandt Aktiengesellschaft right now?
The large discount to fair value meets weak quality (45/100). That raises the risk this is a value trap rather than a bargain. The price is below even our cautious bear case (€11.23). 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.
Key figures of Bertrandt Aktiengesellschaft
How large is the market capitalisation of Bertrandt Aktiengesellschaft (BDT)?
The market capitalisation of Bertrandt Aktiengesellschaft is €80.8M. 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 Bertrandt Aktiengesellschaft (BDT)?
The price-to-sales ratio of Bertrandt Aktiengesellschaft is 0.09 (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 Bertrandt Aktiengesellschaft (BDT)?
Earnings per share at Bertrandt Aktiengesellschaft are €−4.77. Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of Bertrandt Aktiengesellschaft (BDT)?
The dividend yield of Bertrandt Aktiengesellschaft is 3.2%. 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 Bertrandt Aktiengesellschaft (BDT)?
The net margin of Bertrandt Aktiengesellschaft is −5.3% (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 Bertrandt Aktiengesellschaft (BDT)?
The return on equity (ROE) of Bertrandt Aktiengesellschaft is −18.3% (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 Bertrandt Aktiengesellschaft (BDT)?
On an EBIT basis the return on assets of Bertrandt Aktiengesellschaft is −1.0% (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 Bertrandt Aktiengesellschaft (BDT)?
The operating margin of Bertrandt Aktiengesellschaft is −7.6% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Bertrandt Aktiengesellschaft (BDT)?
Revenue at Bertrandt Aktiengesellschaft is growing −4.7% versus a year earlier (3y avg −1.1%). 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 Bertrandt Aktiengesellschaft (BDT)?
Earnings per share at Bertrandt Aktiengesellschaft are growing −44.3% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net debt does Bertrandt Aktiengesellschaft (BDT) carry?
The net debt of Bertrandt Aktiengesellschaft is €206M (fiscal year 2025, ≈ 36.6 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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Nov 8, 2026