Illumina Inc (ILMN) fair value: what the stock is really worth
We calculate from audited financials what Illumina Inc is really worth. The fair value tells you whether the price is too high or too low, the quality score (0 to 100) how solid the business behind it is. 26 models, 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 18, 2026.
How to read this chart
60‑month range $70.30 – $510.54 · fair‑value band $137.11 – $350.58 · the $239.62 price screens below the $251.82 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). 3 fiscal years are left out: there the valuation rested on only a fraction of the usual models. Dashed = 300-day average. As of Sep 18, 2026.
Illumina, Inc. provides sequencing- and array-based solutions for genetic and genomic analysis in the Americas, Europe, Greater China, the Asia Pacific, the Middle East, and Africa.
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Illumina, Inc. provides sequencing- and array-based solutions for genetic and genomic analysis in the Americas, Europe, Greater China, the Asia Pacific, the Middle East, and Africa. The company offers sequencing- and array-based instruments and consumables, which include reagents, flow cells, and library preparation; whole-genome sequencing kits, which sequence entire genomes of various size and complexity; and targeted resequencing kits, which sequence exomes, specific genes, and RNA or other genomic regions of interest. It also provides whole-genome sequencing, genotyping, noninvasive prenatal testing, and product support services. The company serves genomic research centers, academic institutions, government laboratories, and hospitals, as well as pharmaceutical, biotechnology, commercial molecular diagnostic laboratories, and consumer genomics companies. The company markets and distributes its products directly to customers, as well as through life-science distributors. The company has a collaboration with Labcorp Holdings Inc. for the development of oncology treatments through applications of sequencing solutions across the healthcare ecosystem; and strategic collaboration with Integrated DNA Technologies to enable a DRAGEN, secondary analysis pipeline for IDT xGena, FFPE and cfDNA next generation sequencing (NGS) library preparation with custom panels, delivering an integrated, end-to-end solution for somatic oncology research. It also has a data partnership with Center for Data-Driven Discovery in Biomedicine to advance research in pediatric cancer and rare disease. Illumina, Inc. was incorporated in 1998 and is headquartered in San Diego, California.
Stock analysis
Illumina Inc (ILMN) currently trades at $239.62, while our model-based Fair Value estimate is $251.82, implying the stock looks roughly 4.8% fairly valued today.
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Valuation
Bull case: the DCF Models group reads highest at a median of $162.49 per share, and 1 of the 26 models we run sit above the $239.62 price.
Bear case: the Economic Profit group reads lowest at $39.45, and 25 of the 26 models stay below the price. Evidence for this calculation is high.
Scenario range: $137.11 (bear) to $350.58 (bull), the price of $239.62 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 80/100 (high quality), in the Healthcare sector.
Mixed Growth: Revenue is growing, but margins or cash flow do not fully confirm the trend.
Illumina Inc reported revenue of $4.3B in FY2025 versus $4.5B in FY2021, a compound −1.1%/yr. Reported net income was $850M in FY2025, compounding +2.8%/yr from FY2021.
Key figures
Market cap $37.4B · P/E ratio 43.6 · P/S ratio 8.54 · EPS (TTM) $5.50 · Dividend yield 3.7% · Net margin 19.6% · Return on equity 33.8% · Return on assets (EBIT) −9.1%.
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 near its 52-week high and 190% above its 52-week low, currently above its 200-day average.
For context, the median of 10 Healthcare peers we cover trades at −4% fair-value upside, at 5%, ILMN screens cheaper than that median.
Fair Value models
Bear $137.11Fair Value $251.82Bull $350.58
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 ($3.99 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.75/100
Revenue is growing, but margins or cash flow do not fully confirm the trend.
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.
−1.8%
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.
+6.0%
Revenue growth 26 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.
+42.0%
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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: adjusted.
+11.8%
Earnings growth per share plus dividend.
Earnings per share, growth per year+8.1%
Dividend (yield on the price)3.7%
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.2% vs 6%, 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.12% → 20%
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).
+24.3%
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.
+5.1%
Yearly sales growth analysts expect, extended to five years.
News mood ⓘNews mood, the average tone of recent news (99 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 6/15 measures
A mixed picture versus its industry peers.
Valuation
Quality Score80 · Top 25%
Fair Value upside−56% · Below median
Profitability
Return on equity (TTM)34% · Top 25%
Return on assets9% · Top 25%
Net margin (TTM)19% · Top 25%
Operating margin (TTM)18% · Top 25%
Growth and dividend
Revenue growth5% · Below median
Dividend yield (TTM)3.7% · Top 25%
Balance sheet
Debt / equity0.55× · Highest 25%
Valuation Multiplesvs Diagnostics & Research median · lower = cheaper
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). "Illumina Inc Fair Value". https://www.fairvalue-calculator.com/stock/ILMN
Frequently asked questions
Is Illumina Inc (ILMN) overvalued or undervalued?
As of Sep 18, 2026, our model estimates a fair value of $251.82 versus a price of $239.62, about +5% upside (fairly valued).
What is the fair value of ILMN?
Our model-based fair value for Illumina Inc is $251.82 (as of Sep 18, 2026), built from audited fundamentals. The current price: $239.62.
What is the quality score of ILMN?
Illumina Inc has a Quality Score of 80/100. 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 Illumina Inc (ILMN)?
Our model-based price target is the fair value of $251.82 (as of Sep 18, 2026) from 26 valuation models. Cautious scenario $137.11, optimistic scenario $350.58. It is a calculation from audited fundamentals, not an analyst target.
What is the Illumina Inc stock forecast for 2026?
Our models put fair value at $251.82, about +5% upside versus a price of $239.62 (fairly valued). Cautious scenario $137.11, optimistic scenario $350.58. The calculation is refreshed regularly with new filings.
What is the revenue of Illumina Inc (ILMN)?
Illumina Inc reported trailing-twelve-month revenue of about $4.4B (latest available figure, as of Sep 18, 2026).
Does Illumina Inc pay a dividend?
Illumina Inc currently shows a dividend yield of about 3.68% relative to its recent price (as of Sep 18, 2026).
What growth is priced into Illumina Inc (ILMN)?
For today's price to be fair in a discounted-cash-flow model, Illumina Inc would have to grow free cash flow by +24.3 % per year for five years (discount rate 10.2 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +6.0 % per year. As of Sep 18, 2026.
What discount rate (WACC) does the fair value of ILMN use?
Our models discount Illumina Inc at 10.2 %: a base by market capitalisation (large), damped by beta 1.42, country premium for USA. 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 Illumina Inc that is +24.3 % per year a year over ten years, using the same discount rate (10.2 %) and the same formula as our fair value.
How much growth has Illumina Inc (ILMN) delivered so far?
Over the past 5 years revenue at Illumina Inc grew +6.0 % a year. The price currently implies +24.3 % 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 Illumina Inc (ILMN) growing?
The median revenue growth in the sector is +4.3 % a year. That is the yardstick for the growth priced into Illumina Inc (+24.3 % 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 Illumina Inc (ILMN)?
The free-cash-flow yield on the price is 2.49 %: that much free cash flow Illumina Inc produces per unit of market value. When it exceeds the discount rate of our models (10.2 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of Illumina Inc (ILMN)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Illumina Inc it is $251.82 per share (as of Sep 18, 2026), against a price of $239.62. It is the blended result of 26 valuation models (cash flow, earnings, asset, dividend).
Is Illumina Inc stock overvalued or undervalued in 2026?
As of Sep 18, 2026, ILMN trades below its calculated fair value: price $239.62, fair value $251.82, a gap of about +5% (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 ILMN?
No. The price is what the market pays today ($239.62); the fair value is what the company's own numbers justify ($251.82). For Illumina Inc the two are $12.20 per share apart. That gap is exactly why we show both numbers side by side.
How much is Illumina Inc worth?
The market values Illumina Inc at about $37.4B (market capitalisation, as of Sep 18, 2026). Per share that is $239.62; our models calculate a fair value of $251.82 per share.
What do the bullish and bearish scenarios say about ILMN?
Our models span a range for Illumina Inc: cautious scenario $137.11, base $251.82, optimistic $350.58 per share (as of Sep 18, 2026, price $239.62). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of ILMN?
Illumina Inc trades at a price-to-earnings ratio of 43.6 (as of Sep 18, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of $251.82 is built from several models across several years. Other multiples: PEG 3.3, P/B 10.4, P/S 6.4, EV/EBITDA 24.5.
What is the PEG ratio of ILMN?
The PEG ratio of Illumina Inc is 3.26 (P/E divided by earnings growth, as of Sep 18, 2026). That is above 1, so the growth is already paid for in the price.
How solid is the balance sheet of Illumina Inc (ILMN)?
Balance-sheet figures for Illumina Inc (as of Sep 18, 2026): return on equity 33.8%, debt of 0.55 per unit of equity. They feed the Quality Score of 80/100, which measures business quality independently of the share price.
How far is ILMN from its 52-week high?
Illumina Inc trades at $239.62, about 35% below its 52-week high of $177.22 and 190% above the low of $82.60 (as of Sep 18, 2026). Distance from the high says nothing about value: that is what the fair value of $251.82 is for.
Which stocks are comparable to Illumina Inc?
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 Illumina Inc stock attractive at the current price?
The data as of Sep 18, 2026: price $239.62, calculated fair value $251.82 (+5%), Quality Score 80/100, from 26 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 ILMN calculated?
We run Illumina Inc through 26 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 $251.82, 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 16.1 % above its aggregate fair value. Illumina Inc currently trades 5 % 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 Illumina Inc (ILMN)?
The closing price on Sep 18, 2026 was $239.62. Our model-based fair value is $251.82, about +5% upside (fairly valued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Illumina Inc right now?
The price sits close to our fair value, market and models broadly agree here, little valuation tension. A fairly wide model range ($137.11 to $350.58) leaves room in how you read the outcome.
Key figures of Illumina Inc
How large is the market capitalisation of Illumina Inc (ILMN)?
The market capitalisation of Illumina Inc is $37.4B. 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 Illumina Inc (ILMN)?
The price-to-sales ratio of Illumina Inc is 8.54 (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 Illumina Inc (ILMN)?
Earnings per share at Illumina Inc are $5.50 (price ÷ EPS = P/E 43.6). Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of Illumina Inc (ILMN)?
The dividend yield of Illumina Inc is 3.7% (payout 161%). 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 Illumina Inc (ILMN)?
The net margin of Illumina Inc is 19.6% (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 Illumina Inc (ILMN)?
The return on equity (ROE) of Illumina Inc is 33.8% (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 Illumina Inc (ILMN)?
On an EBIT basis the return on assets of Illumina Inc is −9.1% (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 Illumina Inc (ILMN)?
The operating margin of Illumina Inc is 18.3% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Illumina Inc (ILMN)?
Revenue at Illumina Inc is growing +4.8% versus a year earlier (3y avg −1.8%). 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 Illumina Inc (ILMN)?
Earnings per share at Illumina Inc are growing +6.1% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net debt does Illumina Inc (ILMN) carry?
The net debt of Illumina Inc is $1.1B (fiscal year 2025, ≈ 1.2 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 18, 2026