Aon plc (AON) stock

AONNYSEInsurance Agents, Brokers & ServiceFiscal year ends December 31

Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 28, 2026Score 19/3028% below fair value

$333.42−3.13 (-0.93%)

Close on Nov 12, 2026Market cap $70.74BP/E 18.3Yield 0.87%

Aon statistics

109 measures from SEC filings and the closing price. Hover a name for the formula; the last column is the median of companies in the same industry group.

Important dates

Next earnings: Jan 29, 2027 (estimated, before the open)
Last ex-dividend date: Aug 3, 2026
Fundamentals through: Sep 30, 2026
Share price as of: Nov 12, 2026

Valuation ratiosIndustry

Market Cap: $70.74B; $4.37B
Enterprise Value: $83.48B; $3.93B
PE Ratio: 18.26; 30.49
PS Ratio: 4.00; 3.39
PB Ratio: 7.00; 4.53
P/FCF Ratio: 21.66; 20.39
P/OCF Ratio: 19.79; 18.82

Enterprise valuationIndustry

EV / Sales: 4.72; 3.40
EV / EBITDA: 17.96; 18.04
EV / EBIT: 17.96; 18.57
EV / FCF: 25.56; 22.41

Share statisticsIndustry

Shares Outstanding: 212M; 115M
Shares Change (YoY): -1.30%; 3.82%
Float: 210M; 48M
Shares Held by Insiders: 0.91%; 30.2%
Shares Held by Institutions: 90.9%; 47.4%

Short sellingIndustry

Short Interest: 4M; –
Short Interest Change: 13.0%; -5.47%
Short % of Float: 1.82%; 3.93%
Short % of Shares Outstanding: 1.81%; 2.16%
Days to Cover: 2.16; 4.21

Stock price statisticsIndustry

52-Week High: $382.34; –
52-Week Low: $266.33; –
20-Day Moving Average: $318.84; –
50-Day Moving Average: $300.56; –
200-Day Moving Average: $325.71; –
Average True Range (14): $8.40; –
Price Change (1 Week): -3.19%; -2.74%
Price Change (1 Month): 21.1%; 5.66%
Price Change (3 Months): -6.30%; -0.85%
Price Change (6 Months): 5.71%; 26.6%
Price Change (YTD): -5.51%; -2.09%
Price Change (1 Year): -4.72%; 2.36%
Price Change (3 Years): -0.06%; 2.76%
Price Change (5 Years): 11.0%; 15.9%
Price Change (10 Years): 201.8%; 186.2%
Average Volume (10 Days): 1M; –
Average Volume (20 Days): 2M; –
Average Volume (90 Days): 2M; –
Relative Volume: 0.61; 0.61
Relative Strength Index (14): 64.1; 52.7
Volatility (1 Year): 29.0%; 43.8%
Beta (5 Years): 0.55; 0.63

MarginsIndustry

Operating Margin: 26.3%; 17.3%
Pretax Margin: 28.8%; 15.9%
Profit Margin: 22.2%; 9.58%
EBITDA Margin: 26.3%; 15.6%
FCF Margin: 18.5%; 15.2%

Returns on capitalIndustry

Return on Equity (ROE): 43.6%; 16.7%
Return on Assets (ROA): 6.73%; 2.74%
Return on Invested Capital (ROIC): 15.7%; 10.9%
Return on Capital Employed (ROCE): 11.6%; 13.2%

Financial positionIndustry

Current Ratio: 1.58; 1.24
Quick Ratio: 0.80; 0.43
Debt / Equity: 2.78; 0.84
Debt / EBITDA: 6.03; 2.97
Debt / FCF: 8.59; 3.98
Net Debt / EBITDA: 2.74; 2.38
Interest Coverage: 6.15; 5.35

GrowthIndustry

Revenue Growth (YoY): 3.83%; 8.69%
Net Income Growth (YoY): 44.7%; 6.02%
EPS Growth (YoY): 46.3%; 3.81%
FCF Growth (YoY): 7.43%; 7.43%
Revenue Growth (3Y CAGR): 11.2%; 12.7%
Revenue Growth (5Y CAGR): 9.20%; 11.2%
EPS Growth (3Y CAGR): 11.9%; 11.9%
EPS Growth (5Y CAGR): 15.0%; 15.2%

EfficiencyIndustry

Asset Turnover: 0.30; 0.69
Revenue Per Employee: $294.68K; $373.93K
Profits Per Employee: $65.53K; $23.40K
Employee Count: 60,000; 1,891
WACC: 6.66%; 7.48%

Income statement (TTM)Industry

Revenue: $17.68B; $1.25B
Operating Income: $4.65B; $53.83M
Pretax Income: $5.10B; $70.65M
Net Income: $3.93B; $40.02M
EBITDA: $4.65B; $81.30M
EPS (Diluted): $18.26; $0.44

Balance sheetIndustry

Cash & Short-Term Investments: $15.30B; $185.82M
Total Debt: $28.04B; $351.61M
Net Cash (Debt): -$12.74B; $16.93K
Net Cash Per Share: -$60.05; $0.00
Equity (Book Value): $10.10B; $264.21M
Book Value Per Share: $47.61; $3.37
Tangible Book Value: -$11.28B; -$2.69M
Working Capital: $14.72B; $85.27M

Cash flow (TTM)Industry

Operating Cash Flow: $3.57B; $108.25M
Capital Expenditures: -$308.00M; -$28.94M
Free Cash Flow: $3.27B; $127.86M
FCF Per Share: $15.39; $2.24

Dividends and yieldsIndustry

Earnings Yield: 5.56%; 2.78%
FCF Yield: 4.62%; 4.90%
Dividend Yield: 0.87%; 1.12%
Buyback Yield: 1.82%; 3.63%
Shareholder Yield: 2.69%; 4.76%
Dividend Per Share: $2.91; $2.60
Dividend Growth (YoY): 10.2%; 11.7%
Years of Dividend Growth: 14; 9
Payout Ratio: 17.1%; 41.6%
FCF Payout Ratio: 20.6%; 20.6%

Taxes and interestIndustry

Interest Expense: $755.00M; $19.25M
Income Tax: $1.10B; $17.36M
Effective Tax Rate: 21.7%; 21.0%

Scores and fair valueIndustry

Graham Number: $139.86; $63.89
Graham Upside: -58.1%; -58.1%
Altman Z-Score: 1.56; 1.56
Piotroski F-Score: 5; 5
Lynch Fair Value: $274.49; –
Lynch Upside: -17.7%; -35.1%

Total return vs. the S&P 500

Price change plus reinvested dividends, to the close on Nov 12, 2026. The S&P 500 is measured by the SPY fund.

Period	AON	S&P 500	Difference	AON per year	S&P 500 per year
1 month	+21.3%	-2.7%	+24.0 pts
3 months	-5.4%	-1.7%	−3.6 pts
Year to date	-5.0%	+11.9%	−16.9 pts
1 year	-4.3%	+12.0%	−16.3 pts
3 years	+1.8%	+78.2%	−76.4 pts	+0.6%	+21.2%
5 years	+14.9%	+73.2%	−58.3 pts	+2.8%	+11.6%
10 years	+228.7%	+309.6%	−80.9 pts	+12.6%	+15.1%

Short interest

Shares sold short and not yet covered, reported by brokers to FINRA twice a month. Latest settlement date Oct 30, 2026.

4M AON shares were sold short on Oct 30, 2026, up 13.0% from the previous report, or 1.82% of the shares available to trade. At recent volumes it would take 2.2 days to buy them back. Over the last 20 sessions, 56.5% of the volume reported to FINRA was short selling.

Settlement date	Shares short	Change	Avg. daily volume	Days to cover
Oct 30, 2026	3,836,187	+13.0%	1,772,179	2.2
Oct 15, 2026	3,394,895	-19.6%	1,723,141	2.0
Sep 30, 2026	4,223,243	+14.3%	2,402,502	1.8
Sep 15, 2026	3,695,919	-2.2%	2,110,475	1.8
Aug 31, 2026	3,780,451	+12.2%	850,614	4.4
Aug 14, 2026	3,368,629	-31.5%	935,875	3.6
Jul 31, 2026	4,919,769	+8.0%	1,611,493	3.0
Jul 15, 2026	4,554,648	+23.2%	1,126,077	4.0
Jun 30, 2026	3,695,856	+2.9%	2,301,446	1.6
Jun 15, 2026	3,590,630	+20.0%	1,492,039	2.4
May 29, 2026	2,993,070	+4.8%	1,515,968	2.0
May 15, 2026	2,857,023	+20.4%	1,559,845	1.8