DiaSorin S.p.A. (DIA) fair value: what the stock is really worth
As of Sep 23, 2026: fair value of DiaSorin S.p.A. €83.80, price €78.12, upside +7.3%, quality 68 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 24, 2026.
How to read this chart
60‑month range €54.59 – €193.75 · fair‑value band €52.92 – €118.33 · the €78.12 price screens below the €83.80 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Sep 24, 2026.
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DiaSorin S.p.A. engages in research and development, manufacture, and distribution of immunodiagnostics and molecular diagnostics testing kits in Europe, North America, and internationally.
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DiaSorin S.p.A. engages in research and development, manufacture, and distribution of immunodiagnostics and molecular diagnostics testing kits in Europe, North America, and internationally. It provides various immunodiagnostic in the areas, including infectious diseases, gastrointestinal diseases, hepatitis and retroviruses, endocrinology, metabolic disorders, tumor markers, and oncology under LIAISON XL and LIAISON XS name. The company also offers Simplexa, a congenital CMV direct kit, which detects cytomegalovirus DNA in saliva swab and urine specimens. In addition, it offers LIAISON PLEX Respiratory Flex Assay and the LIAISON PLEX Yeast Blood Culture Assay. Further, the company offers xMAP technology platform, including in vitro diagnostics. The company was founded in 1968 and is headquartered in Saluggia, Italy.
Stock analysis
DiaSorin S.p.A. (DIA) currently trades at €78.12, while our model-based Fair Value estimate is €83.80, implying the stock looks roughly 6.8% fairly valued today.
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Valuation
Bull case: the Growth DCF group reads highest at a median of €75.59 per share, and 6 of the 24 models we run sit above the €78.12 price.
Bear case: the Asset-Based group reads lowest at €21.47, and 18 of the 24 models stay below the price. Evidence for this calculation is high.
Scenario range: €52.92 (bear) to €118.33 (bull), the price of €78.12 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 68/100 (solid quality), in the Healthcare sector.
Weak Growth: Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.
DiaSorin S.p.A. reported revenue of €1.2B in FY2025 versus €1.2B in FY2021, a compound −0.9%/yr. Reported net income was €156M in FY2025, compounding −15.9%/yr from FY2021.
Key figures
Market cap €4.1B · P/E ratio 28.7 · P/S ratio 3.74 · EPS (TTM) €2.72 · Net margin 13.0% · Return on equity 9.2% · Return on assets (EBIT) 9.6% · Operating margin 22.2%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 51 out of 100 (low confidence).
What moves the price
The share trades at its 52-week high and 43% above its 52-week low, currently above its 200-day average.
For context, the median of 10 Healthcare peers we cover trades at −5% fair-value upside, at 7%, DIA screens cheaper than that median.
Fair Value models
Bear €52.92Fair Value €83.80Bull €118.33
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 (€1.92 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
+0.8%
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.
−4.2%
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.
+6.3%
Start year 2020 (pandemic). Over 10 years: +9.1% a year
Revenue growth 22 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.
+10.4%
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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.
−8.2%
Earnings growth per share plus dividend.
Earnings per share, growth per year−8.2%
Dividend (yield on the price)0.0%
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.−8% vs 5%, 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.37% → 23%
Start year 2020 (pandemic)
Growth Forecast
A lot of optimism in the price
The price assumes more 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).
+14.4%
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 +12.0% a year for the price.
News mood ⓘNews mood, the average tone of recent news (33 articles), rated against how stocks are usually covered. 🚀 Hype = unusually upbeat · 🙂 Positive = above average · 😐 Neutral = typical · 🙁 Negative = below average · 😨 Very negative = unusually downbeat. It reflects the tone of coverage, not our valuation.Positive
Recent news coverage is more positive than average.
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.Diagnostics & Research · 142 stocks
Beats the industry median on 8/14 measures
A mixed picture versus its industry peers.
Valuation
Quality Score68 · Top 25%
Fair Value upside+10% · Top 25%
Profitability
Return on equity (TTM)9% · Above median
Return on assets6% · Top 25%
Net margin (TTM)12% · Above median
Operating margin (TTM)22% · Top 25%
Growth and dividend
Revenue growth3% · Below median
Dividend yield (TTM)1.7% · Above median
Balance sheet
Debt / equity0.30× · Above median
Valuation Multiplesvs Diagnostics & Research median · lower = cheaper
P/E (TTM)28.7× · Cheaper than median
P/B2.90× · book value is mostly goodwill ⓘGoodwill and other intangible assets are larger than the equity. The book value mainly reflects prices paid for past acquisitions, so we do not rank this P/B against the peer group.
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). "DiaSorin S.p.A. Fair Value". https://www.fairvalue-calculator.com/stock/DIA
Frequently asked questions
Is DiaSorin S.p.A. (DIA) overvalued or undervalued?
As of Sep 24, 2026, our model estimates a fair value of €83.80 versus a price of €78.12, about +7% upside (fairly valued).
What is the fair value of DIA?
Our model-based fair value for DiaSorin S.p.A. is €83.80 (as of Sep 24, 2026), built from audited fundamentals. The current price: €78.12.
What is the quality score of DIA?
DiaSorin S.p.A. has a Quality Score of 68/100. 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 DiaSorin S.p.A. (DIA)?
Our model-based price target is the fair value of €83.80 (as of Sep 24, 2026) from 24 valuation models. Cautious scenario €52.92, optimistic scenario €118.33. It is a calculation from audited fundamentals, not an analyst target.
What is the DiaSorin S.p.A. stock forecast for 2026?
Our models put fair value at €83.80, about +7% upside versus a price of €78.12 (fairly valued). Cautious scenario €52.92, optimistic scenario €118.33. The calculation is refreshed regularly with new filings.
What is the revenue of DiaSorin S.p.A. (DIA)?
DiaSorin S.p.A. reported trailing-twelve-month revenue of about €1.2B (latest available figure, as of Sep 24, 2026).
What growth is priced into DiaSorin S.p.A. (DIA)?
For today's price to be fair in a discounted-cash-flow model, DiaSorin S.p.A. would have to grow free cash flow by +14.4 % per year for five years (discount rate 11.0 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +6.3 % per year. As of Sep 24, 2026.
What discount rate (WACC) does the fair value of DIA use?
Our models discount DiaSorin S.p.A. at 11.0 %: a base by market capitalisation (mid), damped by beta 0.69, country premium for Italy. 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 DiaSorin S.p.A. that is +14.4 % per year a year over ten years, using the same discount rate (11.0 %) and the same formula as our fair value.
How much growth has DiaSorin S.p.A. (DIA) delivered so far?
Over the past 5 years revenue at DiaSorin S.p.A. grew +6.3 % a year. The price currently implies +14.4 % 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 DiaSorin S.p.A. (DIA) growing?
The median revenue growth in the sector is +4.2 % a year. That is the yardstick for the growth priced into DiaSorin S.p.A. (+14.4 % 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 DiaSorin S.p.A. (DIA)?
The free-cash-flow yield on the price is 4.95 %: that much free cash flow DiaSorin S.p.A. produces per unit of market value. When it exceeds the discount rate of our models (11.0 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of DiaSorin S.p.A. (DIA)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For DiaSorin S.p.A. it is €83.80 per share (as of Sep 24, 2026), against a price of €78.12. It is the blended result of 24 valuation models (cash flow, earnings, asset, dividend).
Is DiaSorin S.p.A. stock overvalued or undervalued in 2026?
As of Sep 24, 2026, DIA trades below its calculated fair value: price €78.12, fair value €83.80, a gap of about +7% (fairly valued). 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 DIA?
No. The price is what the market pays today (€78.12); the fair value is what the company's own numbers justify (€83.80). For DiaSorin S.p.A. the two are €5.68 per share apart. That gap is exactly why we show both numbers side by side.
How much is DiaSorin S.p.A. worth?
The market values DiaSorin S.p.A. at about €4.1B (market capitalisation, as of Sep 24, 2026). Per share that is €78.12; our models calculate a fair value of €83.80 per share.
What do the bullish and bearish scenarios say about DIA?
Our models span a range for DiaSorin S.p.A.: cautious scenario €52.92, base €83.80, optimistic €118.33 per share (as of Sep 24, 2026, price €78.12). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of DIA?
DiaSorin S.p.A. trades at a price-to-earnings ratio of 28.7 (as of Sep 24, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of €83.80 is built from several models across several years. Other multiples: PEG 1.8, P/B 2.9, P/S 3.9, EV/EBITDA 14.3.
What is the PEG ratio of DIA?
The PEG ratio of DiaSorin S.p.A. is 1.79 (P/E divided by earnings growth, as of Sep 24, 2026). That is above 1, so the growth is already paid for in the price.
How solid is the balance sheet of DiaSorin S.p.A. (DIA)?
Balance-sheet figures for DiaSorin S.p.A. (as of Sep 24, 2026): return on equity 9.2%, debt of 0.30 per unit of equity. They feed the Quality Score of 68/100, which measures business quality independently of the share price.
How far is DIA from its 52-week high?
DiaSorin S.p.A. trades at €78.12, at its 52-week high of €78.12 and 43% above the low of €54.59 (as of Sep 23, 2026). Distance from the high says nothing about value: that is what the fair value of €83.80 is for.
Which stocks are comparable to DiaSorin S.p.A.?
From the same area (Healthcare) we also value Thermo Fisher Scientific Inc, Danaher Corporation, WuXi AppTec Co, Lonza 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 DiaSorin S.p.A. stock attractive at the current price?
The data as of Sep 24, 2026: price €78.12, calculated fair value €83.80 (+7%), Quality Score 68/100, 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 DIA calculated?
We run DiaSorin S.p.A. 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 €83.80, 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. DiaSorin S.p.A. currently trades 7 % 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 DiaSorin S.p.A. (DIA)?
The closing price on Sep 23, 2026 was €78.12. Our model-based fair value is €83.80, about +7% upside (fairly valued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with DiaSorin S.p.A. right now?
The price sits close to our fair value, market and models broadly agree here, little valuation tension. A fairly wide model range (€52.92 to €118.33) leaves room in how you read the outcome.
Where does the earnings growth of DiaSorin S.p.A. (DIA) come from?
Earnings per share at DiaSorin S.p.A. grew +11.5 % a year from 2012 to 2023. Broken into its drivers: revenue per share +11.7 %, EBIT margin −1.5 %, tax rate +1.9 %, residual (interest, one-offs) −0.6 %. 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 DiaSorin S.p.A.
How large is the market capitalisation of DiaSorin S.p.A. (DIA)?
The market capitalisation of DiaSorin S.p.A. is €4.1B. 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 DiaSorin S.p.A. (DIA)?
The price-to-sales ratio of DiaSorin S.p.A. is 3.74 (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 DiaSorin S.p.A. (DIA)?
Earnings per share at DiaSorin S.p.A. are €2.72 (price ÷ EPS = P/E 28.7). Earnings per share over the last twelve months: total profit spread across every single share.
What is the net margin of DiaSorin S.p.A. (DIA)?
The net margin of DiaSorin S.p.A. is 13.0% (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 DiaSorin S.p.A. (DIA)?
The return on equity (ROE) of DiaSorin S.p.A. is 9.2% (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 DiaSorin S.p.A. (DIA)?
On an EBIT basis the return on assets of DiaSorin S.p.A. is 9.6% (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 DiaSorin S.p.A. (DIA)?
The operating margin of DiaSorin S.p.A. is 22.2% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at DiaSorin S.p.A. (DIA)?
Revenue at DiaSorin S.p.A. is growing +2.7% versus a year earlier (3y avg −4.2%). 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 DiaSorin S.p.A. (DIA)?
Earnings per share at DiaSorin S.p.A. are growing +6.6% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net debt does DiaSorin S.p.A. (DIA) carry?
The net debt of DiaSorin S.p.A. is €558M (fiscal year 2025, ≈ 2.7 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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Broad data
Sep 24, 2026