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Stock research / United States / AON · Insurance Agents, Brokers & Service · NYSE

Aon plc (AON)

Aon is a professional services firm that sits between companies and the people who carry their risk. It does not take underwriting risk itself; it advises on risk and on people, and places insurance and reinsurance on clients' behalf. It serves clients in more than 120 countries, across all market segments and nearly every industry, and reports in two segments: Risk Capital and Human Capital.

Aon plc

Aon is a professional services firm that sits between companies and the people who carry their risk. It does not take underwriting risk itself; it advises on risk and on people, and places insurance and reinsurance on clients' behalf. It serves clients in more than 120 countries, across all market segments and nearly every industry, and reports in two segments: Risk Capital and Human Capital.

Risk Capital

Commercial Risk Solutions is the broking and consulting arm. It covers insurance and specialty brokerage, global risk consulting, captives management and Affinity programmes, and it is organised around industry and product rather than geography: property, casualty, financial and professional lines, construction, transportation, energy, cyber, surety, trade credit, crisis management, transaction liability and climate, among others.

Three things sit underneath that. In insurance broking, teams design insurance programmes and give clients access to Aon's own facilities, including Aon Client Treaty, and to other forms of capital regardless of which carrier, placement structure or geography is involved; the company says it reviews analytics on client losses and exposures through the year and looks at new risk transfer techniques as market conditions change. The Global Risk Consulting and Captive Management teams advise on the trade-off between retaining risk and transferring it, and handle claims consulting and advocacy. The Affinity business works with sponsored groups and other distribution channels to build, market and administer customised insurance programmes.

The broking reach runs through Aon's Global Broking Centers in London, Bermuda and Singapore. In 2025 the company launched a proprietary data centre lifecycle insurance offering.

Human Capital

The second segment, covering the people side of what the firm advises on.

What the company says it is doing with its portfolio

Two statements from the filing are worth reporting as the company's own. It says it is focused on accelerating what it calls its Aon United strategy, serving clients as one globally connected firm. And it says it continues to focus its portfolio on higher-margin, capital-light professional services businesses with high recurring revenue and strong cash generation, and that it aims to make capital allocation decisions so as to maximise value for Aon and its shareholders.

The company also makes a point about its client base that is worth noting: it says serving clients across more than 120 countries, all market segments and nearly every industry gives the firm stability in economic scenarios that would affect particular industries, customer segments or geographies.

From Aon's annual report on Form 10-K for the year ended 31 December 2025. The filing

Compare with another name What $10,000 in Aon became

Latest results

Latest quarterQ3 FY2026ended 30 September 2026 · 10-Q filed 28 October 2026
Revenue
$4.1 billion
+2.6% on the year · -3.4% on the quarter
Q4 FY2024Q3 FY2026
Net income
$476 million
+3.9% on the year · -13.6% on the quarter
Q4 FY2024Q3 FY2026
Diluted EPS
$2.23
+5.7% on the year · -13.6% on the quarter
Q4 FY2024Q3 FY2026

this quarterthe same quarter a year earlierHover a bar for its figure.

Read the Q3 FY2026 results →the 10-Q on EDGAR ↗
Last full yearFY2025ended 31 December 2025 · 10-K filed 13 February 2026
Revenue
$17.2 billion
+9.4% on the year
FY2018FY2025
Net income
$3.7 billion
+39.2% on the year
FY2018FY2025
Diluted EPS
$17.02
+36.3% on the year
FY2018FY2025

this yearthe year beforeHover a bar for its figure.

The years before, in wordsAon (AON) reported revenue of $17.2 billion for fiscal 2025, the year ended 31 December 2025, up 9.4% on the year before. Net income was $3.7 billion and diluted earnings per share $17.02. Revenue was $15.7 billion in fiscal 2024, $13.4 billion in fiscal 2023, $12.5 billion in fiscal 2022 and $12.2 billion in fiscal 2021. Net income in the same years was $2.7 billion, $2.6 billion, $2.6 billion and $1.3 billion. Over the twelve months to 30 September 2026, Aon reported revenue of $17.7 billion and net income of $3.9 billion. Revenue grew 9.2% a year, compounded, over the five years to fiscal 2025. Aon declared $3.13 a share in dividends over the last four quarters and had 212 million shares outstanding at the latest filed count. At the close of 6 November 2026 the market cap of Aon was $71.0 billion, 18.3 times its earnings over the last twelve months.
Read the FY2025 results →the 10-K on EDGAR ↗

Ratios

From the filings

ROE38.9%
ROCE12.8%
Operating margin26.3%
Net margin22.2%
FCF margin18.5%
Interest cover6.2x
Debt to equity2.61x
Cash conversion0.91x
Share count, last 12 months-1.3%
Sales CAGR, 3 years11.2%
Profit CAGR, 3 years12.6%
EPS, TTM$18.26

At the close of 6 November 2026

Price$334.85
Market cap$71.0 billion
Stock P/E18.3x
Price to book7.0x
EV / EBITDAn/a
Dividend yield0.9%
Market cap / sales4.0x
52-week high$381.26
52-week low$269.53
Price, 1 year-1.5%
Price CAGR, 3 years0.9%
Price CAGR, 5 years3.0%

29 ready-made ratios, from FCF yield to net debt to EBITDA, wait on the Formulas page, each with what it tells you. Browse and add them →

Worked from the filed figures; hover a name for the formula.
Read moreThe priced ones use the latest price, the last regular-hours trade on IEX. Debt to equity here stands on long-term debt as Aon plc files it, with lease liabilities counted separately and never inside it. Nothing here is a valuation or a view.
AONgreeksoup.ai
Daily prices to 6 November 2026, adjusted for splits; from 28 September 2026 each day's price is the last regular-hours trade on IEX.
Read moreData provided for free by IEX. By accessing or using IEX Historical Data, you agree to the IEX Historical Data Terms of Use. Day by day for the last three years; before that one point a week, carrying the week's last close and its average daily volume, so a volume bar means the same thing across the whole series; the bars sit under the price on their own scale, on the right. The moving averages need consecutive days and are drawn from the daily part. P/E is the close over the trailing four quarters' EPS as filed at each filing date, on the current share count; the dashed line is the median over the range shown. Sales and margin are quarterly revenue and the operating margin from the tables above. EV/EBITDA, price to book and market cap to sales use the latest filed balance sheet and share count at each date. Before the quarters on file begin, P/E, price to book and market cap to sales stand on each annual report from the day it was filed. Drawn in your browser; the range and overlay you pick are remembered here only.

Quarterly results

Q4 FY2021 *Q1 FY2022Q2 FY2022Q3 FY2022Q4 FY2022 *Q1 FY2023Q2 FY2023Q3 FY2023Q4 FY2023 *Q1 FY2024Q2 FY2024Q3 FY2024Q4 FY2024 *Q1 FY2025Q2 FY2025Q3 FY2025Q4 FY2025 *Q1 FY2026Q2 FY2026Q3 FY2026
Revenue3,0803,6702,9832,6963,1303,8713,1772,9533,3754,0703,7603,7214,1474,7294,1553,9974,3005,0344,2464,101
Operating income9741,3677005901,0121,4738426917791,4656566231,0911,4618598161,2081,715915809
Operating margin32%37%23%22%32%38%27%23%23%36%17%17%26%31%21%20%28%34%22%20%
Interest expense85.091.0102103110111130119124144225213206206212206191179179206
Pre-tax income1,0361,3046335107091,3426585606091,4246984498911,2507035972,2091,553724612
Tax rate16%20%19%18%6%20%13%17%17%23%23%21%18%21%16%21%23%20%22%21%
Net income8631,0235014086571,0505604564981,0715243437169655794581,6931,212551476
Net margin28%28%17%15%21%27%18%15%15%26%14%9%17%20%14%11%39%24%13%12%
Diluted EPS$3.88$4.73$2.33$1.92$3.14$5.07$2.71$2.23$2.47$5.35$2.46$1.57$3.28$4.43$2.66$2.11$7.82$5.63$2.58$2.23
Operating cash flow9314636681,0461,0424436881,0431,2613095131,0131,2001407961,1481,3974305561,191
Capital expenditure35.023.045.058.070.076.069.058.049.048.053.062.055.056.064.069.074.067.073.094.0
Free cash flow8964406239889723676199851,2122614609511,14584.07321,0791,3233634831,097
Dividends paid112110119118116115126125123123146147146147161160161162175174
Shares outstanding214m212m211m207m205m204m203m200m198m217m217m216m216m216m216m215m214m214m212m212m
Filing10-K10-Q10-Q10-Q10-K10-Q10-Q10-Q10-K10-Q10-Q10-Q10-K10-Q10-Q10-Q10-K10-Q10-Q10-Q
Each quarter as filed, linked to its filing.
Read more* The fourth quarter is the full year less the first three quarters, because the company files the year and not the quarter on its own. A fourth quarter's EPS, and its diluted share count where shown, are from the company's results press release for that quarter, checked against the company's filed figures or a second data source. Money is in $ million as the company files it, or in $ billion by the switch above the tables; per share figures and the share count are as they are. Free cash flow is operating cash flow less capital expenditure; the effective tax rate is income tax over pre-tax income; margins are the line over revenue. Gross profit is revenue less cost of revenue, and operating income is revenue less the company's own total costs, where the statement does not print those lines. Cash flow lines filed year to date are the difference between two filings. Shares outstanding are at the period end where the balance sheet tags them, otherwise the count on the filing's cover page. A derived fourth-quarter EPS is left blank when a split in the year makes the arithmetic meaningless.

Income statement (profit and loss)

FY2007FY2008 †FY2009 †FY2010 †FY2011 †FY2012FY2013 †FY2014 †FY2015 †FY2016 †FY2017 †FY2018FY2019 †FY2020 †FY2021FY2022FY2023FY2024FY2025TTM
Revenue7,2347,5287,5958,51211,28711,51411,81512,0459,4809,4099,99810,77011,01311,06612,19312,47913,37615,69817,18117,681
Operating income1,0039401,0211,2441,5961,5961,6711,9661,5871,8111,0651,5442,1692,7812,0903,6693,7853,8354,3444,647
Operating margin13.9%12.5%13.4%14.6%14.1%13.9%14.1%16.3%16.7%19.2%10.7%14.3%19.7%25.1%17.1%29.4%28.3%24.4%25.3%26.3%
Interest expense138126122182245228210255273282282278307334322406484788815755
Pre-tax incomen/an/an/an/a1,3881,3801,5381,7651,4281,4016851,2461,8702,4661,9313,1563,1693,4624,7595,098
Income tax3482422683003783603903341751482501462974486235105417421,0091,104
Effective tax raten/an/an/an/a27.2%26.1%25.4%18.9%12.3%10.6%36.5%11.7%15.9%18.2%32.3%16.2%17.1%21.4%21.2%21.7%
Net income8641,4627477069799931,1131,3971,3851,3961,2261,1341,5321,9691,2552,5892,5642,6543,6953,932
Net margin11.9%19.4%9.8%8.3%8.7%8.6%9.4%11.6%14.6%14.8%12.3%10.5%13.9%17.8%10.3%20.7%19.2%16.9%21.5%22.2%
Diluted EPS$2.66$4.80$2.57$2.37$2.87$2.99$3.53$4.66$4.88$5.16$4.70$4.59$6.37$8.45$5.55$12.14$12.51$12.49$17.02$18.26
Filing10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K
From each year's 10-K, linked; TTM is the last four quarters.
Read moreFree cash flow is operating cash flow less capital expenditure; the effective tax rate is income tax over pre-tax income; margins are the line over revenue. Gross profit is revenue less cost of revenue, and operating income is revenue less the company's own total costs, where the statement does not print those lines. Those four are arithmetic on the filed numbers; everything else is as filed. Money is in $ million as the company files it, or in $ billion by the switch above the tables; per share figures and share counts are as they are. † The year as the company last restated it in a later filing; rest on a figure for the one first filed. EPS is as filed.

Revenue by segment FY2009 to FY2025, 7 years left out

FY2009FY2010FY2011FY2012FY2013FY2014FY2022FY2023FY2024FY2025Share
of the parts, latest year
Risk Capitaln/an/an/an/an/an/a8,9059,52410,51711,29065.7%
Human Capitaln/an/an/an/an/an/a3,5913,8645,2095,90734.3%
HR Solutions1,2671,5453,7813,9254,0574,264n/an/an/an/an/a
Risk Solutions6,3056,9897,5377,6327,7897,834n/an/an/an/an/a
Intersegment elimination-26-22-31-43n/an/an/an/an/an/an/a
Unallocated49n/an/an/an/an/an/an/an/an/an/a
Risk Capital FY2022 to FY2025Human Capital FY2022 to FY2025Risk Solutions FY2009 to FY2014HR Solutions FY2009 to FY2014
8.5FY201011.6FY201212.1FY201413.4FY202317.2FY2025

$ billion; hover a block for its figure and share; the figure over a bar is its parts, before the lines named below; a part named with years is one the company split its revenue into only then

From the company's 10-Ks, in its own words (latest 10-K).
Read moreEach year's figures come from the most recent 10-K that includes that year. A year is shown only where the parts add up to the revenue above. Fiscal years are labelled by the year they end in. Intersegment elimination and Unallocated are the company's own eliminations and corporate items, which take the parts to revenue: shown as filed, with no share and no block in the chart.

Profit by segment FY2009 to FY2025, 7 years left out

The operating profit each segment reports. Costs Aon does not charge to a segment are left out, so the segments can add up to more than the company's own operating profit.

FY2009FY2010FY2011FY2012FY2013FY2014FY2022FY2023FY2024FY2025Margin
FY2025
Risk Capitaln/an/an/an/an/an/a2,8952,9463,2923,43630.4%
Human Capitaln/an/an/an/an/an/a9611,0971,1431,41023.9%
HR Solutions203121336289318485n/an/an/an/an/a
Risk Solutions9001,3281,4131,4931,5401,648n/an/an/an/an/a
Risk Capital FY2022 to FY2025Risk Solutions FY2009 to FY2014Human Capital FY2022 to FY2025HR Solutions FY2009 to FY2014
1,449FY20101,782FY20122,133FY20144,043FY20234,846FY2025

$ million; the figure over a bar is all the segments together. Hover a block for its profit, sales and margin.

FY2025Share of salesShare of profit
Risk Capital66%71%
Human Capital34%29%

Each column adds to 100%. A segment with a bigger share of the profit than of the sales makes more on each dollar it sells.

From the company's 10-Ks, in its own words (latest 10-K).
Read moreEach year's figures come from the most recent 10-K that includes that year. A year is shown only where every segment with sales that year has an operating profit figure. A margin is a segment's operating profit over its own sales.

Revenue by region FY2009 to FY2025

FY2009FY2010FY2011FY2012FY2013FY2014FY2015FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025Share
of the parts, latest year
United States2,7893,4005,1345,3365,5745,8243,9243,9814,4254,6775,0165,0325,4595,6665,9237,6668,27948.2%
Europe, Middle East, & Africa other than U.K. and Irelandn/an/an/an/an/an/an/a1,7602,0252,3332,2632,2362,5652,4432,6722,9003,15318.4%
United Kingdom1,2891,3221,5191,5411,5441,6231,4191,3541,4361,5551,5021,5791,6811,6601,8191,9752,22012.9%
Asia Pacific6477771,0811,1761,1791,2331,1931,4151,1361,1851,2381,2241,3341,4741,5891,6761,71110.0%
Americas other than U.S.9059781,1761,1901,2141,1761,1188999769409199111,0271,1371,2601,3351,6339.5%
Irelandn/an/an/an/an/an/an/an/an/a807584127991131461851.1%
Europe, Middle East and Africa1,9652,0352,3772,2712,304n/an/an/an/an/an/an/an/an/an/an/an/an/a
Europe, Middle East, & African/an/an/an/an/a2,1891,826n/an/an/an/an/an/an/an/an/an/an/a
United StatesEurope, Middle East, & Africa other than U.K. and Ireland FY2016 to FY2025United KingdomAsia PacificAmericas other than U.S.Ireland FY2018 to FY2025Europe, Middle East, & Africa FY2014 to FY2015Europe, Middle East and Africa FY2009 to FY2013
8.5FY201011.8FY20139.4FY201611.0FY201912.5FY202217.2FY2025

$ billion; hover a block for its figure and share; a part named with years is one the company split its revenue into only then

From the company's 10-Ks, in its own words (latest 10-K).
Read moreEach year's figures come from the most recent 10-K that includes that year. A year is shown only where the parts add up to the revenue above. Fiscal years are labelled by the year they end in.

Cash flow

Follow the cashA discounted cash flow: five years of free cash flow, added up in today's moneyNot for Aon: an insurer's operating cash flow includes premiums it holds to pay claims later, so it is not cash the owners can take out. Book value and return on equity, in the ratios above, are the usual measures for it.

FY2007FY2008 †FY2009 †FY2010 †FY2011 †FY2012FY2013 †FY2014 †FY2015 †FY2016 †FY2017 †FY2018FY2019 †FY2020 †FY2021FY2022FY2023FY2024FY2025TTM
Operating cash flow1,2639685007831,0181,4191,7531,8122,0092,3267341,6861,8352,7832,1823,2193,4353,0353,4813,574
Capital expenditure170103140180241269229256200156183240225141137196252218263308
Free cash flow1,0938653606037771,1501,5241,5561,8092,1705511,4461,6102,6422,0453,0233,1832,8173,2183,266
Free cash flow margin15.1%11.5%4.7%7.1%6.9%10.0%12.9%12.9%19.1%23.1%5.5%13.4%14.6%23.9%16.8%24.2%23.8%17.9%18.7%18.5%
Cash from investing-4631,404-229-2,539-186177-339-545-138-9542,78731.0-229-67949.0-449-188-2,833286-11,570
Cash from financing-553-2,244-6521,823-896-1,586-1,136-1,303-1,689-1,286-3,265-1,699-247-1,772-1,924-1,790-2,865796-4,2058,982
Depreciation and amortisationn/a222149151220232240242164162187176n/an/an/an/an/an/an/an/a
Share-based compensation204248209221235212300328320306319338317312449397438474432368
Buybacksn/a1,9245902508281,1251,1022,2501,5501,2572,399n/an/an/an/an/an/an/an/an/a
Dividends paid176171165175200204212273323345364382410412447463489562629672
Dividend per share$0.60$0.60$0.60$0.60$0.60$0.62$0.68$0.92$1.15$1.29$1.41$1.56$1.72$1.78$1.99$2.19$2.41$2.64$2.91n/a
Diluted shares, weighted327m304m291m298m341m333m315m300m284m270m261m247m241m233m226m213m205m212m217m213m
Shares outstanding at period endn/an/a266m332m324m311m301m280m270mn/an/an/an/an/an/an/an/an/an/a212m
Filing10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K
Cash paid in the year, from the cash flow statement.
Read moreThe dividend per share is as declared. Diluted shares are the weighted average for the year; a falling count is the buybacks net of issuance. TTM sums the last four quarters; the share counts are the latest quarter's.

Balance sheet

FY2007FY2008 †FY2009 †FY2010 †FY2011 †FY2012FY2013 †FY2014 †FY2015 †FY2016 †FY2017 †FY2018FY2019 †FY2020 †FY2021FY2022FY2023FY2024FY2025TTM
Funded by
Shareholders' equity6,2615,3105,3798,2518,0787,7628,1456,5716,0025,4754,5834,1513,3753,4951,061-529-8266,1219,35210,101
Non-controlling interestn/a10552.055.042.043.050.060.057.057.065.068.074.088.097.010084.018410796.0
Redeemable equityn/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/a0.012589.020.0
Debtn/a1,8721,9984,5064,4923,7133,6864,7995,1386,2055,9666,2447,3397,7299,39210,77011,19917,01615,24926,319
Operating lease liabilitiesn/an/an/an/an/an/an/an/an/an/an/an/a944897772693641685641731
Finance lease liabilitiesn/an/an/an/an/an/an/an/an/an/an/an/a76.065.046.028.010.00.00.0n/a
Other liabilitiesn/a15,65315,52916,17016,94018,96818,37018,34215,68614,87815,47415,95917,59719,84020,54921,64222,85124,83425,34627,872
Total liabilities and equityn/a22,94022,95828,98229,55230,48630,25129,77226,88326,61526,08826,42229,40532,11431,91732,70433,95948,96550,78465,139
Owned
Fixed assetsn/a451461781783820791765765550564588621599529558638637702806
Goodwilln/a5,6376,0788,6478,7708,9438,9978,8607,0687,4108,3588,1718,1658,6668,4348,2928,41415,23415,79715,897
Intangible assetsn/a7797913,6113,2762,9752,5782,5202,1801,8901,7331,1497836404924472346,7435,7275,487
Investmentsn/a1,0167411,0971,0245116555374914095862261913823565124143091,79513,497
Cash and equivalents5845822173462722914773743844267566567908845446907781,0851,1952,017
Receivablesn/a1,9902,0522,7013,1833,1012,8962,8152,5642,1062,4782,7603,1123,0703,0943,0353,2543,8034,2094,777
Other assetsn/a12,48512,61811,79912,24413,84513,85713,90113,43113,82411,61312,87215,74317,87318,46819,17020,22721,15421,35922,658
Total assetsn/a22,94022,95828,98229,55230,48630,25129,77226,88326,61526,08826,42229,40532,11431,91732,70433,95948,96550,78465,139
Filing10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K
At the fiscal year end; the TTM column is the latest quarter end.
Read moreBoth totals are the company's own. Other liabilities is the filed total less the rows above it: payables, deferred revenue, taxes, borrowings the rows above do not carry and the rest; other assets is the same on the other side. Investments add the current and non-current lines as filed. Debt is the company's own stated total where it files one, otherwise its long-term debt with the current maturities, never parts added together. A row is left blank in a year where the lines shown overlap and the remainder would fall below nil.

Compounded growth

10 years5 years3 yearsTTM
Sales growth, compounded6.1%9.2%11.2%3.8%
Profit growth, compounded10.3%13.4%12.6%44.7%
Return on equity, averagen/an/a41.4%39.5%
Yearly growth, compounded; TTM is the last four quarters against the four before.
Read moreReturn on equity is net income over shareholders' equity at each year end, averaged over the window (the TTM column is the latest year alone); equity is the parent's shareholders' equity as tagged in the 10-K. Arithmetic on filed numbers, nothing forecast.

Questions

What was Aon's revenue in fiscal 2025?

Aon (AON) reported revenue of $17.2 billion for fiscal 2025, the year ended 31 December 2025, up 9.4% on the year before.

How much did Aon earn in fiscal 2025?

Net income was $3.7 billion for fiscal 2025, and diluted earnings per share $17.02.

What is Aon's P/E ratio?

At the close of 6 November 2026, Aon traded at 18.3 times its earnings over the twelve months to 30 September 2026.

What is Aon's market cap?

The market cap of Aon was $71.0 billion at the close of 6 November 2026.

Does Aon pay a dividend?

Yes. Aon declared $3.13 a share in dividends over the four quarters to 30 September 2026.

Peers: Insurance

CompanyMarket capP/EROEOp. marginSales growth
TTM		Debt to equityDiv. yield
Marsh & McLennan Companies, Inc. MRSH$97.3 billion24.4927.1%21.4%7.6%1.271.8%
Arthur J. Gallagher & Co. AJG$72.2 billion43.067.1%13.1%25.6%0.541.0%
Aon plc AON$71.0 billion18.3438.9%26.3%3.8%2.610.9%
Willis Towers Watson plc WTW$30.3 billion20.0720.1%22.0%4.8%0.841.2%
Brown & Brown, Inc. BRO$23.6 billion22.829.7%n/a26.1%0.620.9%
Equitable Holdings, Inc. EQH$14.1 billion10.11n/a16.3%8.6%n/a2.2%
Erie Indemnity Co. ERIE$12.6 billion24.7822.6%17.9%2.0%n/a2.1%
Enact Holdings, Inc. ACT$6.3 billion9.6713.1%68.5%2.5%0.141.9%
Hagerty, Inc. HGTY$6.2 billionn/a23.4%4.5%-0.9%0.96n/a
Accelerant Holdings ARX$4.3 billionn/a-180.6%-110.8%n/a0.17n/a
Corvel Corp. CRVL$4.2 billion34.9428.2%n/a8.3%n/an/a
Neptune Insurance Holdings Inc. NP$3.9 billion90.02n/a41.3%n/an/an/a
All 112 in Insurance
CompanyMarket capP/EROEOp. marginSales growth
TTM		Debt to equityDiv. yield
Berkshire Hathaway Inc. BRK.B$1.23 trillion14.3611.5%15.0%3.9%n/an/a
UnitedHealth Group Inc. UNH$353.2 billion22.5115.3%5.3%3.3%0.712.3%
Chubb Ltd. CB$139.6 billion12.7715.3%22.3%5.7%0.251.1%
Progressive Corp. PGR$132.0 billion11.4833.7%16.0%7.7%0.246.1%
Marsh & McLennan Companies, Inc. MRSH$97.3 billion24.4927.1%21.4%7.6%1.271.8%
Elevance Health, Inc. ELV$92.0 billion18.1511.5%2.7%3.6%0.691.6%
Travelers Companies, Inc. TRV$81.0 billion10.3128.7%21.2%1.1%0.341.2%
Cigna Group CI$77.4 billion12.9613.8%3.4%6.8%0.722.1%
Manulife Financial Corporation MFC *$72.5 billion19.6611.1%n/an/a0.153.3%
Arthur J. Gallagher & Co. AJG$72.2 billion43.067.1%13.1%25.6%0.541.0%
Aon plc AON$71.0 billion18.3438.9%26.3%3.8%2.610.9%
Allstate Corp. ALL$63.4 billion5.7735.9%21.1%5.1%0.231.7%
Metlife Inc. MET$62.0 billion12.8023.1%8.2%14.8%0.642.4%
Aflac Inc. AFL$61.5 billion18.2412.0%25.9%-6.2%0.281.9%
Humana Inc. HUM$52.1 billion42.176.6%1.5%22.0%0.660.8%
Prudential Financial Inc. PRU$40.9 billion10.8613.1%7.8%6.5%0.674.7%
American International Group, Inc. AIG$40.3 billion12.668.5%14.5%1.2%0.222.4%
Sun Life Financial Inc. SLF *$39.6 billion16.2414.5%n/a8.0%0.333.7%
Hartford Insurance Group, Inc. HIG$35.8 billion8.1124.4%18.2%6.2%0.231.8%
Arch Capital Group Ltd. ACGL$34.9 billion8.7819.0%25.9%-3.9%0.194.7%
Centene Corp. CNC$34.5 billion23.886.6%0.5%9.7%0.70n/a
Everest Group, Ltd. EG$30.6 billion8.6913.3%13.9%-8.7%n/a1.9%
Willis Towers Watson plc WTW$30.3 billion20.0720.1%22.0%4.8%0.841.2%
Cincinnati Financial Corp. CINF$28.5 billion10.8816.5%24.8%9.9%0.052.0%
W. R. Berkley Corp. WRB$27.9 billion15.9119.4%n/a1.5%n/a2.5%
Markel Group Inc. MKL$23.7 billion13.779.7%15.7%2.5%0.24n/a
Principal Financial Group Inc. PFG$23.6 billion12.3516.7%14.7%5.2%0.372.9%
Brown & Brown, Inc. BRO$23.6 billion22.829.7%n/a26.1%0.620.9%
Loews Corp. L$22.2 billion15.208.1%10.8%2.8%0.460.2%
Reinsurance Group of America Inc. RGA$17.0 billion10.1214.7%8.0%22.5%0.461.4%
Assurant, Inc. AIZ$15.1 billion14.4517.9%9.8%9.4%n/a1.1%
Corebridge Financial, Inc. CRBG$15.0 billion7.3132.7%16.6%13.3%0.832.9%
Globe Life Inc. GL$14.5 billion10.5317.9%23.3%5.6%0.450.8%
Renaissancere Holdings Ltd. RNR$14.2 billion9.7813.8%30.1%-20.9%0.210.5%
Equitable Holdings, Inc. EQH$14.1 billion10.11n/a16.3%8.6%n/a2.2%
CNA Financial Corp. CNA$12.8 billion12.4710.1%8.5%2.1%0.248.2%
American Financial Group Inc. AFG$12.8 billion12.6121.6%15.2%3.3%0.394.5%
Erie Indemnity Co. ERIE$12.6 billion24.7822.6%17.9%2.0%n/a2.1%
Unum Group UNM$11.9 billion54.432.3%2.4%-4.2%0.352.5%
Fidelity National Financial, Inc. FNF$11.7 billion11.2114.2%17.0%6.4%0.594.7%
Molina Healthcare, Inc. MOH$10.8 billionn/a-1.2%0.4%-0.9%0.91n/a
Oscar Health, Inc. OSCR$9.5 billion12.6638.5%5.4%54.8%0.19n/a
Old Republic International Corp. ORI$9.5 billion8.9218.8%13.8%12.5%n/a9.2%
Voya Financial, Inc. VOYA$8.9 billion15.9216.4%8.9%-0.3%0.551.9%
Primerica, Inc. PRI$8.9 billion11.4828.2%29.4%8.3%0.211.6%
Jackson Financial Inc. JXN$8.7 billion10.7310.4%56.7%34.1%0.332.7%
Kinsale Capital Group, Inc. KNSL$8.6 billion16.7227.4%33.7%8.3%0.120.2%
Hanover Insurance Group, Inc. THG$8.3 billion11.6121.8%15.2%5.0%0.25n/a
Axis Capital Holdings Ltd. AXS$7.6 billion8.0616.1%17.5%9.8%0.211.7%
Lincoln National Corp. LNC$7.6 billion2.4835.2%20.0%10.3%0.684.5%
First American Financial Corp. FAF$6.8 billion9.4413.6%11.9%14.1%n/a3.3%
Enact Holdings, Inc. ACT$6.3 billion9.6713.1%68.5%2.5%0.141.9%
RLI Corp. RLI$6.3 billion15.9323.3%25.8%4.6%0.183.9%
Hagerty, Inc. HGTY$6.2 billionn/a23.4%4.5%-0.9%0.96n/a
Selective Insurance Group Inc. SIGI$5.9 billion11.9514.8%11.9%4.0%0.261.7%
Mgic Investment Corp. MTG$5.8 billion8.8914.3%73.2%-2.2%n/a2.2%
Essent Group Ltd. ESNT$5.6 billion8.6712.2%59.2%9.6%n/a2.1%
White Mountains Insurance Group Ltd. WTM$5.4 billion5.9518.1%30.7%44.9%0.170.0%
CNO Financial Group, Inc. CNO$5.1 billion12.6618.0%14.8%2.3%0.581.2%
Radian Group Inc. RDN$4.7 billion8.8112.0%38.3%65.3%0.132.8%
Mercury General Corp. MCY$4.6 billion7.1222.9%12.9%5.4%0.201.5%
Accelerant Holdings ARX$4.3 billionn/a-180.6%-110.8%n/a0.17n/a
Corvel Corp. CRVL$4.2 billion34.9428.2%n/a8.3%n/an/a
Palomar Holdings, Inc. PLMR$4.1 billion19.5122.0%22.8%58.5%0.30n/a
Neptune Insurance Holdings Inc. NP$3.9 billion90.02n/a41.3%n/an/an/a
Hamilton Insurance Group, Ltd. HG$3.6 billion7.0631.2%28.3%14.8%0.05n/a
Assured Guaranty Ltd. AGO$3.2 billion10.406.0%33.8%-4.2%0.322.0%
Genworth Financial Inc. GNW$3.2 billion67.000.6%3.3%-0.6%0.17n/a
Lemonade, Inc. LMND$3.1 billionn/a-30.6%-12.6%69.5%n/an/a
F&G Annuities & Life, Inc. FG$3.1 billion3.1023.8%n/a-0.4%0.514.3%
Slide Insurance Holdings, Inc. SLDE$3.0 billion5.8944.8%50.4%n/a0.02n/a
SiriusPoint Ltd. SPNT$3.0 billion6.4022.5%17.6%18.1%0.30n/a
Baldwin Insurance Group, Inc. BWIN$3.0 billionn/a-9.2%-6.9%18.9%2.67n/a
NMI Holdings, Inc. NMIH$2.9 billion7.6614.5%68.1%6.9%n/an/a
Skyward Specialty Insurance Group, Inc. SKWD$2.7 billion14.0715.0%13.5%35.3%0.33n/a
Porch Group, Inc. PRCH$2.6 billion246.38127.2%7.7%23.4%53.60n/a
Clover Health Investments, Corp. CLOV$2.6 billion483.003.2%0.5%54.5%0.00n/a
Brighthouse Financial, Inc. BHF$2.5 billion4.3713.6%14.0%-9.4%0.63n/a
HCI Group, Inc. HCI$2.3 billion7.5229.3%49.6%20.1%0.030.9%
Horace Mann Educators Corp. HMN$2.2 billion12.4112.5%12.5%4.2%0.422.7%
Goosehead Insurance, Inc. GSHD$2.0 billion40.58n/a23.3%17.7%n/an/a
Kemper Corp. KMPR$2.0 billionn/a-22.6%n/a-4.5%0.433.8%
Trupanion, Inc. TRUP$1.6 billion60.316.7%1.8%11.4%0.26n/a
Alignment Healthcare, Inc. ALHC$1.5 billion56.3810.4%0.9%35.9%1.17n/a
Safety Insurance Group Inc. SAFT$1.5 billion21.828.2%7.0%4.6%0.063.5%
Twfg, Inc. TWFG$1.5 billion47.5117.4%17.3%36.2%0.05n/a
Stewart Information Services Corp. STC$1.4 billion11.777.2%5.2%20.5%0.394.5%
Universal Insurance Holdings, Inc. UVE$1.3 billion5.8336.0%19.0%5.5%0.151.3%
United Fire Group Inc. UFCS$1.2 billion9.1014.6%11.5%11.6%0.161.6%
Ategrity Specialty Insurance Co. Holdings ASIC$1.2 billion12.1715.0%24.4%n/an/a0.0%
Bowhead Specialty Holdings Inc. BOW$1.1 billion19.1513.3%11.7%23.8%0.33n/a
Heritage Insurance Holdings, Inc. HRTG$983 million4.6736.1%34.1%2.3%0.12n/a
Hippo Holdings Inc. HIPO$929 million28.826.8%6.2%20.6%n/an/a
Employers Holdings, Inc. EIG$832 million25.993.5%4.1%-13.0%0.162.8%
Donegal Group Inc. DGICA$701 million10.0210.5%8.9%-3.4%n/a4.0%
Root, Inc. ROOT$659 million9.1324.8%6.7%7.9%0.60n/a
Ethos Technologies Inc. LIFE$558 millionn/a-23.0%-16.1%n/an/an/a
Crawford & Co. CRD-A$554 million21.9414.1%3.9%-3.6%0.81n/a
American Integrity Insurance Group, Inc. AII$528 million5.9923.8%36.2%29.3%0.00n/a
Greenlight Capital RE, Ltd. GLRE$522 million9.458.4%8.8%3.7%0.01n/a
Investors Title Co. ITIC$483 million11.9814.1%17.7%8.7%n/a4.1%
American Coastal Insurance Corp. ACIC$475 million5.7424.5%37.7%-5.3%0.427.5%
Amerisafe Inc. AMSF$363 million9.1017.0%15.0%7.7%n/a8.3%
NI Holdings, Inc. NODK$311 million21.266.1%7.7%-12.9%0.01n/a
Kingstone Companies, Inc. KINS$296 million7.1230.7%21.2%24.5%0.030.8%
Mbia Inc. MBI$235 millionn/an/a-155.2%18.0%n/an/a
Kingsway Corp. KWY$230 millionn/a-79.5%0.7%23.6%5.13n/a
Octave Specialty Group Inc. OSG$226 millionn/a-23.0%-24.3%26.8%0.22n/a
Citizens, Inc. CIA$208 million25.694.0%3.8%4.1%n/an/a
James River Group Holdings, Inc. JRVR$180 million10.145.8%3.8%-1.8%n/a1.0%
Roadzen Inc. RDZN$100 millionn/an/a-21.6%30.5%n/an/a
Ryan Specialty Holdings, Inc. RYANn/an/a23.4%15.6%9.8%8.231.1%
18 companies share its SEC industry code (Insurance Agents, Brokers & Service); the rest are the names nearest in size in its wider industry, Insurance, one of the Fama-French 48 industries, a published grouping of SEC industry codes.
Read moreBy market capitalisation; a click on a heading sorts by it, largest first, and a second click turns it round. Each figure is the same arithmetic as the ratio box above, on each company's own filings and latest close; a name marked * is a foreign company that files once a year, on its latest fiscal year.

The public record on AON

Dividends$3.13 a share over the four quarters to 30 September 2026, a 0.93% yield
Filings22 in twelve months: 12 current reports (8-K), about 4 results of operations; 4 officer or director change; 3 other events; 2 material agreement; 1 termination of a material agreement
Planned insider sales7 Form 144 notices in twelve months, $6.8 million; latest 28 July 2026
Options tapeput/call 0.71 by open interest at the 6 November 2026 close; the straddle prices a 4.8% move to 20 November 2026
13F holders1,266 funds reported a position for the quarter to 30 June 2026; largest BlackRock, Inc.
Insider trading9 sales and 7 purchases on Form 4 in twelve months
Congress0 House trades disclosed in six months
Short interest3.4 million shares short, 1.97 days to cover at 15 October 2026
Documentsthe 10-K, the 10-Qs, the proxy and 4 earnings press releases, each linked

Filings

FilingPeriodFiledWhere
10-Q30 September 202628 October 2026EDGAR
10-Q30 June 202629 July 2026EDGAR
10-Q31 March 20261 May 2026EDGAR
10-K31 December 202513 February 2026EDGAR
10-Q30 September 202531 October 2025EDGAR
10-Q30 June 202525 July 2025EDGAR
10-Q31 March 202525 April 2025EDGAR
10-K31 December 202418 February 2025EDGAR
10-Q30 September 202425 October 2024EDGAR
10-Q30 June 202426 July 2024EDGAR

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