Aon PLC (AON) fair value: what the stock is really worth
We calculate from audited financials what Aon PLC 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.
Watch Aon PLC for free, get notified when fair value or trend changes. Plus fair value for all 35,000+ stocks, 14 days of Pro free, no card.Watch for freePro now: $1 first month
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, dashed = 300-day average. As of Sep 18, 2026.
How to read this chart
60‑month range $217.92 – $404.78 · fair‑value band $144.50 – $281.13 · the $295.64 price screens above the $224.91 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Sep 18, 2026.
Aon plc operates as a professional services firm in the United States, rest of the Americas, the United Kingdom, Ireland, rest of Europe, the Middle East, Africa, and the Asia Pacific. It operates through Risk Capital and Human Capital segments.
Show more
Aon plc operates as a professional services firm in the United States, rest of the Americas, the United Kingdom, Ireland, rest of Europe, the Middle East, Africa, and the Asia Pacific. It operates through Risk Capital and Human Capital segments. The company offers commercial risk solutions comprising retail and insurance brokerage, specialty solutions, global risk consulting, captives management, and affinity programs; health solutions, such as consulting and brokerage, consumer benefits, and talent advisory services; and wealth solutions, including retirement consulting and investments. It also provides treaty and facultative reinsurance; strategy and technology group solutions; insurance-linked securities, capital raising, strategic advice, restructuring, and merger and acquisition services; and risk management products and solutions, capital market solutions, and corporate finance advisory services. In addition, the company offers strategic design advice and actuarial services; pension risk transfer and integrated pension administration; and investment advisory services on developing and maintaining investment programs across various plan types, including defined benefit plans, defined contribution plans, master trusts, and pooled employer plans for corporations, public pensions, endowments, and foundations. Aon plc was incorporated in 1979 and is headquartered in Dublin, Ireland.
Stock analysis
Aon PLC (AON) currently trades at $295.64, while our model-based Fair Value estimate is $224.91, implying the stock looks roughly 31.4% overvalued today.
Show more
Valuation
Bull case: the Economic Profit group reads highest at a median of $218.75 per share, and 0 of the 6 models we run sit above the $295.64 price.
Bear case: the Asset-Based group reads lowest at $29.95, and 6 of the 6 models stay below the price. Evidence for this calculation is high.
Scenario range: $144.50 (bear) to $281.13 (bull), the price of $295.64 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 60/100 (solid quality), in the Financial Services sector.
Healthy Growth: Revenue growth appears healthy and is supported by profitability and cash-flow quality.
Aon PLC reported revenue of $17.2B in FY2025 versus $12.2B in FY2021, a compound +9.0%/yr. Reported net income was $3.7B in FY2025, compounding +31.0%/yr from FY2021.
Key figures
Market cap $78.4B · P/E ratio 16.3 · P/S ratio 3.51 · EPS (TTM) $18.14 · Dividend yield 1.0% · Net margin 21.5% · Return on equity 46.5% · Return on assets (EBIT) 9.1%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 58 out of 100 (medium confidence).
What moves the price
The share trades about 22% below its 52-week high, currently below its 200-day average.
For context, the median of 10 Financial Services peers we cover trades at −47% fair-value upside, at −24%, AON screens cheaper than that median.
Fair Value models
Bear $144.50Fair Value $224.91Bull $281.13
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 ($10.97 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.89/100
Revenue growth appears healthy and is supported by profitability and cash-flow quality.
Revenue growth 1 year
+9.4%
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.
+11.2%
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.
+9.2%
Revenue growth 40 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%
’14
’15
’16
’17
’18
’19
’20
’21
’22
’23
’24
’25
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.
+11.7%
Earnings growth per share plus dividend.
Earnings per share, growth per year+10.7%
Dividend (yield on the price)1.0%
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.22% vs 13%, picking up
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.25% → 25%
Growth Forecast
A lot of optimism in the price
The price assumes about as much growth as 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).
+9.5%
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.
+5.3%
Yearly sales growth analysts expect, extended to five years.
News mood ⓘNews mood, the average tone of recent news (98 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.
Free, no sign-up
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.Insurance Brokers · 36 stocks
Beats the industry median on 6/15 measures
A mixed picture versus its industry peers.
Valuation
Quality Score57 · Below median
Fair Value upside−30% · Above median
Profitability
Return on equity (TTM)46% · Top 25%
Return on assets6% · Above median
Net margin (TTM)23% · Top 25%
Operating margin (TTM)36% · Top 25%
Growth and dividend
Revenue growth7% · Below median
Dividend yield (TTM)1.0% · Bottom 25%
Balance sheet
Debt / equity1.54× · Highest 25%
Valuation Multiplesvs Insurance Brokers 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). "Aon PLC Fair Value". https://www.fairvalue-calculator.com/stock/AON
Frequently asked questions
Is Aon PLC (AON) overvalued or undervalued?
As of Sep 18, 2026, our model estimates a fair value of $224.91 versus a price of $295.64, about −24% upside (overvalued).
What is the fair value of AON?
Our model-based fair value for Aon PLC is $224.91 (as of Sep 18, 2026), built from audited fundamentals. The current price: $295.64.
What is the quality score of AON?
Aon PLC has a Quality Score of 60/100. 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 Aon PLC (AON)?
Our model-based price target is the fair value of $224.91 (as of Sep 18, 2026) from 6 valuation models. Cautious scenario $144.50, optimistic scenario $281.13. It is a calculation from audited fundamentals, not an analyst target.
What is the Aon PLC stock forecast for 2026?
Our models put fair value at $224.91, about −24% upside versus a price of $295.64 (overvalued). Cautious scenario $144.50, optimistic scenario $281.13. The calculation is refreshed regularly with new filings.
What is the revenue of Aon PLC (AON)?
Aon PLC reported trailing-twelve-month revenue of about $17.5B (latest available figure, as of Sep 18, 2026).
Does Aon PLC pay a dividend?
Aon PLC currently shows a dividend yield of about 1.01% relative to its recent price (as of Sep 18, 2026).
What growth is priced into Aon PLC (AON)?
For today's price to be fair in a discounted-cash-flow model, Aon PLC would have to grow free cash flow by +9.5 % per year for five years (discount rate 8.6 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +9.2 % per year. As of Sep 18, 2026.
What discount rate (WACC) does the fair value of AON use?
Our models discount Aon PLC at 8.6 %: a base by market capitalisation (large), damped by beta 0.71, 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 Aon PLC that is +9.5 % per year a year over ten years, using the same discount rate (8.6 %) and the same formula as our fair value.
How much growth has Aon PLC (AON) delivered so far?
Over the past 5 years revenue at Aon PLC grew +9.2 % a year. The price currently implies +9.5 % 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 Aon PLC (AON) growing?
The median revenue growth in the sector is +8.1 % a year. That is the yardstick for the growth priced into Aon PLC (+9.5 % 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 Aon PLC (AON)?
The free-cash-flow yield on the price is 5.03 %: that much free cash flow Aon PLC produces per unit of market value. When it exceeds the discount rate of our models (8.6 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of Aon PLC (AON)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Aon PLC it is $224.91 per share (as of Sep 18, 2026), against a price of $295.64. It is the blended result of 6 valuation models (cash flow, earnings, asset, dividend).
Is Aon PLC stock overvalued or undervalued in 2026?
As of Sep 18, 2026, AON trades above its calculated fair value: price $295.64, fair value $224.91, a gap of about −24% (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 AON?
No. The price is what the market pays today ($295.64); the fair value is what the company's own numbers justify ($224.91). For Aon PLC the two are $70.73 per share apart. That gap is exactly why we show both numbers side by side.
How much is Aon PLC worth?
The market values Aon PLC at about $78.4B (market capitalisation, as of Sep 18, 2026). Per share that is $295.64; our models calculate a fair value of $224.91 per share.
What do the bullish and bearish scenarios say about AON?
Our models span a range for Aon PLC: cautious scenario $144.50, base $224.91, optimistic $281.13 per share (as of Sep 18, 2026, price $295.64). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of AON?
Aon PLC trades at a price-to-earnings ratio of 16.3 (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 $224.91 is built from several models across several years. Other multiples: PEG 3.1, P/B 8.2, P/S 4.5, EV/EBITDA 15.7.
What is the PEG ratio of AON?
The PEG ratio of Aon PLC is 3.13 (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 Aon PLC (AON)?
Balance-sheet figures for Aon PLC (as of Sep 18, 2026): return on equity 46.5%, debt of 1.54 per unit of equity. They feed the Quality Score of 60/100, which measures business quality independently of the share price.
How far is AON from its 52-week high?
Aon PLC trades at $295.64, about 22% below its 52-week high of $377.57 (as of Sep 18, 2026). Distance from the high says nothing about value: that is what the fair value of $224.91 is for.
Which stocks are comparable to Aon PLC?
From the same area (Financial Services) we also value Marsh & McLennan Companies, Inc, Arthur J. Gallagher & Co, Willis Towers Watson Public Limited, Brown & Brown, Inc, 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 Aon PLC stock attractive at the current price?
The data as of Sep 18, 2026: price $295.64, calculated fair value $224.91 (−24%), Quality Score 60/100, from 6 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 AON calculated?
We run Aon PLC through 6 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 $224.91, 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. Aon PLC 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 Aon PLC (AON)?
The closing price on Sep 18, 2026 was $295.64. Our model-based fair value is $224.91, about −24% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Aon PLC right now?
The price sits above even our optimistic bull case ($281.13). The favourable scenario is already priced in. Solid but not exceptional quality (60/100) and above fair value, neither a clear bargain nor a standout compounder. A fairly wide model range ($144.50 to $281.13) leaves room in how you read the outcome. For a financial, book-value and earnings-based methods matter more than a cash-flow DCF, which fits banks and insurers poorly.
Where does the earnings growth of Aon PLC (AON) come from?
Earnings per share at Aon PLC grew +12.4 % a year from 2014 to 2025. Broken into its drivers: revenue per share +8.1 %, EBIT margin +4.5 %, tax rate −0.9 %, residual (interest, one-offs) +0.4 %. 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 Aon PLC
How large is the market capitalisation of Aon PLC (AON)?
The market capitalisation of Aon PLC is $78.4B. 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 Aon PLC (AON)?
The price-to-sales ratio of Aon PLC is 3.51 (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 Aon PLC (AON)?
Earnings per share at Aon PLC are $18.14 (price ÷ EPS = P/E 16.3). Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of Aon PLC (AON)?
The dividend yield of Aon PLC is 1.0% (payout 16.4%). 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 Aon PLC (AON)?
The net margin of Aon PLC is 21.5% (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 Aon PLC (AON)?
The return on equity (ROE) of Aon PLC is 46.5% (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 Aon PLC (AON)?
On an EBIT basis the return on assets of Aon PLC 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 Aon PLC (AON)?
The operating margin of Aon PLC is 35.8% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Aon PLC (AON)?
Revenue at Aon PLC is growing +6.5% versus a year earlier (3y avg +11.2%). 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 Aon PLC (AON)?
Earnings per share at Aon PLC are growing +27.1% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net debt does Aon PLC (AON) carry?
The net debt of Aon PLC is $15.3B (fiscal year 2025, ≈ 4.8 yrs of FCF). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
Free · no account needed
Watch Aon PLC in the live analysis
One click puts Aon PLC on your watchlist: fair value and trend at a glance, plus comparison, the diversification check and the 35,000+ stock screener. You can also try 14 days of Pro there, no card.
Broad data
Sep 18, 2026