AON vs MRSH vs BWIN Stock Comparison

Aon, Marsh & Mclennan Companies and Baldwin Insurance Prices as of Oct 26, 2026 Peers: Industry group
AON Aon plc
$302.08 +8.7% 1M -10.6% 1Y
Market cap
$64.13B
P/E
16.4x
Revenue (TTM)
$17.58B
Div. yield
0.01%
Insurance Brokers Financial Services
5 wins

Head to Head

12 decided of 12

Aon leads on 5 of the 12 questions below (Aon 5, Marsh & Mclennan Companies 4, Baldwin Insurance 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAONMRSHBWINLeader
Larger companyMarket capitalisation $64.13B $90.63B $2.96B MRSH
Cheaper on earningsLower P/E, profitable companies only 16.4x 22.4x -36.4x AON
Cheaper on forward earningsLower price / next fiscal year consensus EPS 16.6x 19.1x 14.9x BWIN
Faster revenue growthRevenue growth, trailing twelve months +4.9% +7.6% +7.6% BWIN
More profitableNet margin, trailing twelve months 22.3% 14.2% -611.2% AON
Better return on capitalReturn on invested capital 14.8% 13.1% -1.5% AON
Less leveragedLower net debt / EBITDA 2.5x 2.7x 28.2x AON
Higher dividend yieldTrailing dividend yield 0.01% 0.02% 0.00% MRSH
Better 1-year returnPrice return, last 12 months -10.6% +4.4% +36.3% BWIN
Better 5-year returnAnnualised price return, 5 years -1.0%/yr +3.0%/yr -2.8%/yr MRSH
Less volatileAnnualised volatility, 1 year 29.2% 25.9% 58.8% MRSH
Higher overall scoreMean of the five percentile scores vs peers 39/100 35/100 17/100 AON

Percentile Scorecard

AONMRSHBWIN

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

AxisAONMRSHBWIN
Valuation 11 #106 of 119 10 #107 of 119 2 #117 of 119
Growth 42 #67 of 115 15 #98 of 115 33 #77 of 115
Profitability 85 #18 of 113 71 #33 of 113 8 #104 of 113
Financial Health 5 #108 of 114 21 #90 of 114 4 #109 of 114
Shareholder Returns 54 #50 of 107 57 #47 of 107 37 #68 of 107
Overall 39 35 17
  • AON ranked among 126 companies in Insurance
  • MRSH ranked among 126 companies in Insurance
  • BWIN ranked among 126 companies in Insurance

Price Performance

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

Returns

PeriodAONMRSHBWINSPY
1 month +8.7%+13.8%+0.4% -0.8%
3 months -17.7%+6.3%+16.8% +3.5%
6 months -6.7%+14.5%+31.2% +7.0%
Year to date -14.4%+5.0%+33.1% +12.2%
1 year -10.6%+4.4%+36.3% +13.0%
3 years -1.6%+5.3%+51.7% +86.3%
3 years, per year -0.5%+1.8%+14.9% +23.1%
5 years -4.7%+16.2%-13.4% +68.6%
5 years, per year -1.0%+3.0%-2.8% +11.0%
10 years +179.2%+208.1%— +258.0%
10 years, per year +10.8%+11.9%— +13.6%

Risk

MeasureAONMRSHBWINSPY
Volatility, 1Y 29.2%25.9%58.8% 12.7%
Downside volatility, 1Y 31.0%24.8%50.5% 12.7%
Beta vs S&P 500, 1Y -0.31-0.38-0.02 1.00
Return / volatility, 1Y -0.360.170.62 1.02
Max drawdown, 5Y -34.2%-35.6%-70.2% -25.4%
From 52-week high -20.7%-2.3%0.0% -1.8%
52-week high $381.11$199.34$32.00 $779.14
52-week low $269.45$157.32$16.50 $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.

MultipleAONMRSHBWIN
P/E now vs peer median 16.5xmedian 10.6x 22.9xmedian 10.6x -36.5xmedian 10.6x
P/S now vs peer median 3.6xmedian 1.4x 3.3xmedian 1.4x 335.6xmedian 1.4x
EV/EBITDA now vs peer median 14.0xmedian 7.6x 15.9xmedian 7.6x 83.6xmedian 7.6x
P/FCF now vs peer median 19.7xmedian 8.6x 22.3xmedian 8.6x 102.1xmedian 8.6x
P/B now vs peer median 6.6xmedian 1.5x 6.2xmedian 1.5x 3.1xmedian 1.5x
PEG now vs peer median 1.35median 0.52 3.43median 0.52 -1.65median 0.52

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 monthsAONMRSHBWIN
Revenue $17.58B $28.46B $13.29M
Operating income $4.65B $6.09B -$119.63M
Net income $3.99B $4.12B -$127.55M
Free cash flow $3.25B $4.15B $43.71M
EPS (diluted) $18.30 $8.44 $-0.88
Cash & equivalents $1.06B $1.84B $184.50M
Total debt $14.97B $20.53B $2.45B
Shares (diluted) 213.90M 479.00M 92.76M
Enterprise value $57.34B $82.79B $2.41B

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
MetricAONMRSHBWIN
P/E 16.5x 22.9x -36.5x
P/FCF 19.7x 22.3x 102.1x
P/Operating cash flow 18.1x 20.7x 49.1x
P/S 3.6x 3.3x 335.6x
P/B 6.6x 6.2x 3.1x
P/Tangible book 15.9x 8.9x -154.5x
EV/EBITDA 14.0x 15.9x 83.6x
EV/EBIT 16.7x 18.3x -56.2x
EV/Revenue 4.4x 3.9x 506.2x
EV/FCF 23.9x 26.8x 153.9x
EV/Operating cash flow 22.0x 24.9x 74.1x
PEG (3Y EPS CAGR) 1.35 3.43 -1.65

Growth

14 metrics
MetricAONMRSHBWIN
Revenue growth (1Y) 4.9% 7.6% 7.6%
Revenue CAGR (3Y) 10.9% 8.6% -76.2%
Gross profit growth (1Y) – – –
Gross profit CAGR (3Y) – – –
Operating income growth (1Y) 15.4% -1.0% -227.4%
Operating income CAGR (3Y) 5.9% 7.8% -3.1%
Net income growth (1Y) 49.7% -1.9% -331.5%
Net income CAGR (3Y) 13.4% 5.5% 15.0%
EPS growth (1Y) 52.8% 1.0% -235.3%
EPS CAGR (3Y) 12.2% 6.7% 22.1%
Operating cash flow growth (1Y) 12.1% -12.1% 279.4%
Operating cash flow CAGR (3Y) 3.1% 4.0% 34.1%
Free cash flow growth (1Y) 11.5% -13.9% 146.9%
Free cash flow CAGR (3Y) 3.3% 5.1% 36.2%

Profitability

14 metrics
MetricAONMRSHBWIN
Gross margin – – –
EBITDA margin 31.6% 24.6% 605.3%
Operating margin 26.5% 21.4% -900.0%
Pretax margin 28.9% 18.9% -2,082%
Net margin 22.3% 14.2% -611.2%
FCF margin 18.5% 14.6% 328.8%
Operating cash flow margin 20.1% 15.7% 682.9%
Return on equity 40.6% 27.2% -8.9%
Return on assets 7.6% 6.9% -2.2%
Return on invested capital 14.8% 13.1% -1.5%
Return on capital employed 18.5% 16.2% -2.8%
Asset turnover 0.3x 0.5x 0.0x
Cash conversion (OCF / net income) 0.9x 1.1x -0.7x
Stock comp / revenue 2.1% 1.5% 563.3%

Financial Health

11 metrics
MetricAONMRSHBWIN
Debt / assets 28.1% 34.3% 39.7%
Debt / equity 1.5x 1.4x 1.7x
Net debt / EBITDA 2.5x 2.7x 28.2x
Debt / FCF 4.6x 4.9x 56.1x
Liabilities / assets 81.8% 75.1% 77.0%
Equity / assets 18.2% 24.9% 23.0%
Interest coverage 6.2x 6.3x –
Current ratio 1.0x 1.1x 1.1x
Quick ratio 0.3x 0.5x 0.6x
Cash ratio 0.0x 0.1x 0.1x
Altman Z-score 1.52 2.77 0.44

Shareholder Returns

7 metrics
MetricAONMRSHBWIN
Dividend yield 1.0% 1.9% –
Net buyback yield 2.4% 3.1% 2.8%
Shareholder yield 3.4% 5.0% 2.8%
Payout ratio (earnings) 16.5% 43.6% –
Payout ratio (FCF) 20.3% 43.3% –
Dividend growth (1Y) 9.5% 8.4% –
Dividend CAGR (3Y) 11.5% 13.1% –

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.

ConsensusAONMRSHBWIN
Forward P/E 16.6xFY2026 19.1xFY2026 14.9xFY2026
EPS, next fiscal year $18.15FY2026 $10.21FY2026 $2.14FY2026
EPS growth, next FY +6.3%FY2026 +4.7%FY2026 +28.1%FY2026
EPS growth, the year after +8.1% +15.4% +20.6%
Revenue, next fiscal year $19.12BFY2026 $30.28BFY2026 $2.08BFY2026
Revenue growth, next FY +11.3%FY2026 +12.2%FY2026 +38.8%FY2026
Revenue growth, the year after +8.7% +6.4% +1.6%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAONMRSHBWIN
Held by institutions 90.5% 93.9% 64.5%
Institutions holding 1,254 1,496 229
Change in shares held, QoQ +3.1% +2.8% +0.2%
Institutions buying 603 624 112
Institutions selling 448 652 76
Buyers to sellers 1.35 0.96 1.47

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.

AONMRSHBWIN
AON 1.00 0.80 0.37
MRSH 0.80 1.00 0.40
BWIN 0.37 0.40 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AON, MRSH and BWIN?

Marsh & Mclennan Companies (MRSH) is the largest by market capitalisation: Aon (AON) $64.13B, Marsh & Mclennan Companies (MRSH) $90.63B, Baldwin Insurance (BWIN) $2.96B.

Which stock is cheaper, AON, MRSH and BWIN?

Aon (AON) trades on the lowest price-to-earnings ratio (Aon (AON) 16.4x, Marsh & Mclennan Companies (MRSH) 22.4x, Baldwin Insurance (BWIN) -36.4x). On next year's consensus earnings, Baldwin Insurance (BWIN) is cheapest (Aon (AON) 16.6x, Marsh & Mclennan Companies (MRSH) 19.1x, Baldwin Insurance (BWIN) 14.9x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Baldwin Insurance (BWIN) grew revenue fastest over the trailing twelve months: Aon (AON) +4.9%, Marsh & Mclennan Companies (MRSH) +7.6%, Baldwin Insurance (BWIN) +7.6%.

Which company is more profitable?

Aon (AON) has the highest net margin (Aon (AON) 22.3%, Marsh & Mclennan Companies (MRSH) 14.2%, Baldwin Insurance (BWIN) -611.2%). On return on invested capital, Aon (AON) leads (Aon (AON) 14.8%, Marsh & Mclennan Companies (MRSH) 13.1%, Baldwin Insurance (BWIN) -1.5%).

Which stock has performed better?

Over the past year Baldwin Insurance (BWIN) returned the most: Aon (AON) -10.6%, Marsh & Mclennan Companies (MRSH) +4.4%, Baldwin Insurance (BWIN) +36.3%. Over five years, Marsh & Mclennan Companies (MRSH) compounded fastest (Aon (AON) -1.0%/yr, Marsh & Mclennan Companies (MRSH) +3.0%/yr, Baldwin Insurance (BWIN) -2.8%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Marsh & Mclennan Companies (MRSH) has the highest dividend yield: Aon (AON) 0.01%, Marsh & Mclennan Companies (MRSH) 0.02%, Baldwin Insurance (BWIN) 0.00%. Baldwin Insurance (BWIN) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Marsh & Mclennan Companies (MRSH) has been the steadiest (Aon (AON) 29.2%, Marsh & Mclennan Companies (MRSH) 25.9%, Baldwin Insurance (BWIN) 58.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AON, MRSH and BWIN?

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 5. 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.