AON vs BRO Stock Comparison

Aon and Brown & Brown Prices as of Oct 27, 2026 Peers: Industry group
AON Aon plc
$302.39 +8.8% 1M -10.2% 1Y
Market cap
$67.78B
P/E
17.3x
Revenue (TTM)
$17.58B
Div. yield
0.01%
Insurance Brokers Financial Services
6 wins
BRO Brown & Brown, Inc.
$67.52 +11.0% 1M -23.1% 1Y
Market cap
$21.67B
P/E
17.8x
Revenue (TTM)
$6.91B
Div. yield
–
Insurance Brokers Financial Services
5 wins

Head to Head

11 decided of 12

Aon leads on 6 of the 12 questions below (Aon 6, Brown & Brown 5). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAONBROLeader
Larger companyMarket capitalisation $67.78B $21.67B AON
Cheaper on earningsLower P/E, profitable companies only 17.3x 17.8x AON
Cheaper on forward earningsLower price / next fiscal year consensus EPS 16.7x 15.7x BRO
Faster revenue growthRevenue growth, trailing twelve months +4.9% +26.1% BRO
More profitableNet margin, trailing twelve months 22.3% 17.6% AON
Better return on capitalReturn on invested capital 14.8% 7.6% AON
Less leveragedLower net debt / EBITDA 2.5x 2.4x BRO
Higher dividend yieldTrailing dividend yield 0.01% 0.00% –
Better 1-year returnPrice return, last 12 months -10.2% -23.1% AON
Better 5-year returnAnnualised price return, 5 years -1.2%/yr +1.4%/yr BRO
Less volatileAnnualised volatility, 1 year 29.2% 32.9% AON
Higher overall scoreMean of the five percentile scores vs peers 41/100 43/100 BRO

Percentile Scorecard

AONBRO

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisAONBRO
Valuation 11 #106 of 119 20 #96 of 119
Growth 46 #62 of 114 63 #43 of 114
Profitability 86 #16 of 110 64 #40 of 110
Financial Health 5 #105 of 110 29 #78 of 110
Shareholder Returns 57 #46 of 106 39 #65 of 106
Overall 41 43
  • AON ranked among 126 companies in Insurance
  • BRO ranked among 126 companies in Insurance

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodAONBROSPY
1 month +8.8%+11.0% -0.2%
3 months -20.7%-8.3% +3.9%
6 months -6.0%+6.9% +8.2%
Year to date -14.3%-15.3% +12.9%
1 year -10.2%-23.1% +12.3%
3 years -1.5%-0.2% +87.4%
3 years, per year -0.5%-0.1% +23.3%
5 years -5.8%+7.3% +67.9%
5 years, per year -1.2%+1.4% +10.9%
10 years +178.9%+268.6% +261.1%
10 years, per year +10.8%+13.9% +13.7%

Risk

MeasureAONBROSPY
Volatility, 1Y 29.2%32.9% 12.7%
Downside volatility, 1Y 31.0%33.4% 12.7%
Beta vs S&P 500, 1Y -0.30-0.45 1.00
Return / volatility, 1Y -0.35-0.70 0.97
Max drawdown, 5Y -34.2%-56.3% -25.4%
From 52-week high -20.7%-23.1% -1.2%
52-week high $381.11$87.76 $779.14
52-week low $269.45$54.38 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleAONBRO
P/E now vs peer median 16.5xmedian 10.5x 18.2xmedian 10.5x
P/S now vs peer median 3.6xmedian 1.4x 3.2xmedian 1.4x
EV/EBITDA now vs peer median 14.0xmedian 7.6x 10.6xmedian 7.6x
P/FCF now vs peer median 19.7xmedian 8.5x 15.1xmedian 8.5x
P/B now vs peer median 6.6xmedian 1.5x 1.8xmedian 1.5x
PEG now vs peer median 1.35median 0.53 1.58median 0.53

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsAONBRO
Revenue $17.58B $6.91B
Operating income $4.65B –
Net income $3.99B $1.23B
Free cash flow $3.25B $1.49B
EPS (diluted) $18.30 $3.69
Cash & equivalents $1.06B $1.10B
Total debt $14.97B $7.76B
Shares (diluted) 213.90M 330.00M
Enterprise value $61.00B $17.57B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricAONBRO
P/E 16.5x 18.2x
P/FCF 19.7x 15.1x
P/Operating cash flow 18.2x 14.1x
P/S 3.6x 3.2x
P/B 6.6x 1.8x
P/Tangible book 15.9x 2.8x
EV/EBITDA 14.0x 10.6x
EV/EBIT 16.7x 14.9x
EV/Revenue 4.4x 4.2x
EV/FCF 24.0x 19.5x
EV/Operating cash flow 22.0x 18.3x
PEG (3Y EPS CAGR) 1.35 1.58

Growth

14 metrics
MetricAONBRO
Revenue growth (1Y) 4.9% 26.1%
Revenue CAGR (3Y) 10.9% 18.7%
Gross profit growth (1Y) – –
Gross profit CAGR (3Y) – –
Operating income growth (1Y) 15.4% –
Operating income CAGR (3Y) 5.9% –
Net income growth (1Y) 49.7% 21.5%
Net income CAGR (3Y) 13.4% 17.9%
EPS growth (1Y) 52.8% 22.7%
EPS CAGR (3Y) 12.2% 11.6%
Operating cash flow growth (1Y) 12.1% 15.9%
Operating cash flow CAGR (3Y) 3.1% 17.2%
Free cash flow growth (1Y) 11.5% 14.5%
Free cash flow CAGR (3Y) 3.3% 17.1%

Profitability

14 metrics
MetricAONBRO
Gross margin – –
EBITDA margin 31.6% 39.6%
Operating margin 26.5% –
Pretax margin 28.9% 22.5%
Net margin 22.3% 17.6%
FCF margin 18.5% 21.5%
Operating cash flow margin 20.1% 22.9%
Return on equity 40.6% 9.7%
Return on assets 7.6% 4.1%
Return on invested capital 14.8% 7.6%
Return on capital employed 18.5% 8.7%
Asset turnover 0.3x 0.2x
Cash conversion (OCF / net income) 0.9x 1.3x
Stock comp / revenue 2.1% 1.3%

Financial Health

11 metrics
MetricAONBRO
Debt / assets 28.1% 26.3%
Debt / equity 1.5x 0.6x
Net debt / EBITDA 2.5x 2.4x
Debt / FCF 4.6x 5.2x
Liabilities / assets 81.8% 57.2%
Equity / assets 18.2% 42.8%
Interest coverage 6.2x 4.9x
Current ratio 1.0x 1.1x
Quick ratio 0.3x 0.2x
Cash ratio 0.0x 0.2x
Altman Z-score 1.52 1.66

Shareholder Returns

7 metrics
MetricAONBRO
Dividend yield 1.0% 1.0%
Net buyback yield 2.4% 3.6%
Shareholder yield 3.4% 4.6%
Payout ratio (earnings) 16.5% –
Payout ratio (FCF) 20.3% –
Dividend growth (1Y) 9.5% –
Dividend CAGR (3Y) 11.5% –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusAONBRO
Forward P/E 16.7xFY2026 15.7xFY2026
EPS, next fiscal year $18.15FY2026 $4.30FY2026
EPS growth, next FY +6.3%FY2026 +0.9%FY2026
EPS growth, the year after +8.1% +18.8%
Revenue, next fiscal year $19.12BFY2026 $7.37BFY2026
Revenue growth, next FY +11.3%FY2026 +25.0%FY2026
Revenue growth, the year after +8.7% -4.2%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAONBRO
Held by institutions 90.5% 84.6%
Institutions holding 1,254 807
Change in shares held, QoQ +3.1% +1.1%
Institutions buying 603 438
Institutions selling 448 273
Buyers to sellers 1.35 1.60

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

AONBRO
AON 1.00 0.73
BRO 0.73 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AON and BRO?

Aon (AON) is the largest by market capitalisation: Aon (AON) $67.78B, Brown & Brown (BRO) $21.67B.

Which stock is cheaper, AON and BRO?

Aon (AON) trades on the lowest price-to-earnings ratio (Aon (AON) 17.3x, Brown & Brown (BRO) 17.8x). On next year's consensus earnings, Brown & Brown (BRO) is cheapest (Aon (AON) 16.7x, Brown & Brown (BRO) 15.7x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Brown & Brown (BRO) grew revenue fastest over the trailing twelve months: Aon (AON) +4.9%, Brown & Brown (BRO) +26.1%.

Which company is more profitable?

Aon (AON) has the highest net margin (Aon (AON) 22.3%, Brown & Brown (BRO) 17.6%). On return on invested capital, Aon (AON) leads (Aon (AON) 14.8%, Brown & Brown (BRO) 7.6%).

Which stock has performed better?

Over the past year Aon (AON) returned the most: Aon (AON) -10.2%, Brown & Brown (BRO) -23.1%. Over five years, Brown & Brown (BRO) compounded fastest (Aon (AON) -1.2%/yr, Brown & Brown (BRO) +1.4%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Aon (AON) 0.01%, Brown & Brown (BRO) 0.00%. Brown & Brown (BRO) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Aon (AON) has been the steadiest (Aon (AON) 29.2%, Brown & Brown (BRO) 32.9%). Volatility measures how widely the price swings, not the risk of the business.

Do AON and BRO move together?

Their daily returns over the past year have a correlation of 0.73, a strong positive relationship. Holding both adds little diversification.

Which is the better stock, AON and BRO?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Aon (AON) leads on 6. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.