US · USD

AON

Aon PLC

$275.95-0.30% (-$0.82)Updated 10/1/26, 5:26 PM

Day's range: $274.81 – $279.49
Day's volume: $541.7M
52-week range: $272.10 – $380.39

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AON in numbers

Market cap: $58.5B

P/E: 14.96

P/B: 6.10

Dividend yield (12m): 1.13%

The 12-month dividend yield of AON is 1.13%, above its 5-year average of 0.76%.

AON price history

10/02/202510/01/2026

Compare with

AON risk and return

Monthly closes adjusted for splits and distributions.

Metric	12 months	36 months	60 months
Return	-22.00%	-12.80%	+0.39%
Volatility (annualized)	22.08%	23.65%	23.79%
Largest drawdown	-23.06%	-31.73%	-31.73%
Positive months	4/12	18/36	30/60

How much did investing in AON return?

Amount invested

$1,000.00 invested on 09/01/2021 would be worth $1,003.93 today.

Value today in AON: $1,003.93

Return over the period: +0.39%

Return per year: +0.08%

In the S&P 500: $1,776.31

With dividends reinvested, before taxes and costs, at month-end closes. Past returns do not guarantee future ones.

AON fundamentals

Valuation

P/E
14.96
P/B
6.10
EV/EBITDA
—
EV/EBIT
15.09
EV/Revenue
3.99
P/EBIT
12.58
P/S
3.33
P/OCF
16.58
P/FCF
18.02
Earnings yield
6.63%
PEG ratio
—
Earnings per share
$18.45
Book value per share
$45.25

Debt

Net debt
$11.7B
Net debt/EBITDA
—
Net debt/Equity
1.22
Debt/Equity
1.35
Current ratio
1.03
Quick ratio
—
Cash ratio
0.05

Efficiency

Gross margin
—
EBITDA margin
—
Operating margin
26.48%
Net margin
22.27%
Asset turnover
0.33

Profitability

ROE
40.78%
ROA
7.34%
ROIC
17.12%
Payout
16.96%

Growth

Revenue CAGR (5 years)
8.37%
Earnings CAGR (5 years)
—
Revenue growth (year)
—
Earnings growth (year)
—
Revenue growth (quarter)
—
Earnings growth (quarter)
—

What is AON's fair price?

Two classic value formulas, with today's numbers. The current price is $275.95.

Graham's fair price: $137.06; 50.33% below the price

√(22.50 × $18.45 × $45.25)

Benjamin Graham paid no more than a P/E of 15 and a P/B of 1.5. Their product, 22.5, times earnings (EPS) and book value per share gives the fair price.

Bazin's ceiling price: $40.45; 85.34% below the price

$2.43 (5-year average) ÷ 6%

Décio Bazin only bought stocks yielding at least 6% a year in distributions. The ceiling price is the average dividend per share of recent years over 6%.

Graham ignores growth and debt; Bazin assumes past distributions repeat. They are references to compare, not a buy recommendation.

AON's indicators by year

Multiples at each year's closing price; margins and returns from that year's statements.

Indicator	2025	2024	2023	2022	2021	2020	2019	2018
P/E	20.46	29.23	22.51	23.78	51.24	24.25	31.49	—
P/B	8.08	12.67	-69.87	-116.39	60.61	13.66	14.29	8.40
EV/EBITDA	—	—	—	—	—	—	—	23.29
Dividend yield	0.82%	0.74%	0.83%	0.73%	0.66%	0.84%	0.83%	1.07%
Earnings per share	$17.25	$12.29	$12.93	$12.62	$5.87	$8.71	$6.62	—
Book value per share	$43.65	$28.34	-$4.17	-$2.58	$4.96	$15.47	$14.57	$17.30
ROE	39.51%	43.36%	-310.41%	-489.41%	118.28%	56.34%	45.39%	—
ROIC	16.14%	14.29%	39.13%	37.73%	16.75%	23.75%	20.11%	14.63%
EBITDA margin	—	—	—	—	—	—	—	15.97%
Net margin	21.51%	16.91%	19.17%	20.75%	10.29%	17.79%	13.91%	—
Net debt/EBITDA	—	—	—	—	—	—	—	3.00

AON's financial statements

Line	2025	2024	2023	2022	2021	2020
Net revenue	$17.2B	$15.7B	$13.4B	$12.5B	$12.2B	$11.1B
Cost of revenue	—	—	—	—	—	—
Gross profit	—	—	—	—	—	—
EBITDA	—	—	—	—	—	—
EBIT	$4.3B	$3.8B	$3.8B	$3.7B	$2.1B	$2.8B
Financial result	—	—	—	—	$152M	$13M
Income before tax	$4.8B	$3.5B	$3.2B	$3.2B	$1.9B	$2.5B
Income tax	-$1B	-$742M	-$541M	-$510M	-$623M	-$448M
Net income	$3.7B	$2.7B	$2.6B	$2.6B	$1.3B	$2B

Figures the company filed with the CVM. Debt excludes leases; each quarter is that quarter alone.

Does AON pay dividends?

Dividend yield per year

1.05%2017
1.07%2018
0.83%2019
0.84%2020
0.66%2021
0.73%2022
0.83%2023
0.74%2024
0.82%2025
0.86%2026

Payment history
Type	Last day to own	Payment	Per share
Dividend	07/31/2026	08/14/2026	$0.82
Dividend	04/30/2026	05/15/2026	$0.82
Dividend	01/30/2026	02/13/2026	$0.75
Dividend	10/31/2025	11/14/2025	$0.75
Dividend	07/31/2025	08/15/2025	$0.75
Dividend	04/30/2025	05/15/2025	$0.75
Dividend	01/31/2025	02/14/2025	$0.68
Dividend	10/31/2024	11/15/2024	$0.68
Dividend	07/31/2024	08/15/2024	$0.68
Dividend	04/29/2024	05/15/2024	$0.68
Dividend	01/30/2024	02/15/2024	$0.62
Dividend	10/30/2023	11/15/2023	$0.62

See all 40 distributions

Earlier distributions
Type	Last day to own	Payment	Per share
Dividend	07/28/2023	08/15/2023	$0.62
Dividend	04/27/2023	05/15/2023	$0.62
Dividend	01/30/2023	02/15/2023	$0.56
Dividend	10/28/2022	11/15/2022	$0.56
Dividend	07/28/2022	08/12/2022	$0.56
Dividend	04/28/2022	05/13/2022	$0.56
Dividend	01/28/2022	02/15/2022	$0.51
Dividend	10/28/2021	11/15/2021	$0.51
Dividend	07/29/2021	08/13/2021	$0.51
Dividend	04/29/2021	05/14/2021	$0.51
Dividend	01/28/2021	02/12/2021	$0.46
Dividend	10/29/2020	11/13/2020	$0.46
Dividend	07/30/2020	08/14/2020	$0.44
Dividend	04/29/2020	05/15/2020	$0.44
Dividend	01/30/2020	02/14/2020	$0.44
Dividend	10/30/2019	11/15/2019	$0.44
Dividend	07/30/2019	08/15/2019	$0.44
Dividend	04/29/2019	05/15/2019	$0.44
Dividend	01/30/2019	02/15/2019	$0.40
Dividend	10/30/2018	11/15/2018	$0.40
Dividend	08/08/2018	08/15/2018	$0.40
Dividend	04/27/2018	05/15/2018	$0.40
Dividend	01/30/2018	02/15/2018	$0.36
Dividend	10/30/2017	11/15/2017	$0.36
Dividend	07/27/2017	08/15/2017	$0.36
Dividend	04/26/2017	05/15/2017	$0.36
Dividend	01/27/2017	02/15/2017	$0.33
Dividend	10/27/2016	11/15/2016	$0.33

About Aon

Sector: Finance, insurance and real estate

Questions about AON

How much is AON today?

AON is at $275.95 (-0.30% on the day), last traded on 10/01/2026.

How much did AON pay in dividends in 2025?

AON paid $2.91 per share in 2025, a dividend yield of 0.82%.

What are the P/E and P/B of AON?

AON trades at a P/E of 14.96 and a P/B of 6.10.

How much did AON return in 12 months?

AON returned -22.00% in 12 months, with annualized volatility of 22.08% and a largest drawdown of -23.06%.