AON vs CTAS vs MRSH Stock Comparison

Aon, Cintas and Marsh & Mclennan Companies Prices as of Oct 29, 2026 Peers: Industry group
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AON Aon plc
$321.66 +16.6% 1M -1.4% 1Y
Market cap
$68.49B
P/E
17.4x
Revenue (TTM)
$17.68B
Div. yield
0.01%
Insurance Brokers Financial Services
3 wins
CTAS Cintas Corp
$218.07 +10.3% 1M +18.6% 1Y
Market cap
$88.02B
P/E
42.7x
Revenue (TTM)
$11.56B
Div. yield
0.01%
Facility Services Industrials
7 wins

Head to Head

12 decided of 12

Cintas leads on 7 of the 12 questions below (Cintas 7, Aon 3, Marsh & Mclennan Companies 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAONCTASMRSHLeader
Larger companyMarket capitalisation $68.49B $88.02B $95.61B MRSH
Cheaper on earningsLower P/E, profitable companies only 17.4x 42.7x 23.7x AON
Cheaper on forward earningsLower price / next fiscal year consensus EPS 17.7x 37.3x 19.3x AON
Faster revenue growthRevenue growth, trailing twelve months +3.8% +9.5% +7.6% CTAS
More profitableNet margin, trailing twelve months 22.2% 17.8% 14.2% AON
Better return on capitalReturn on invested capital 11.6% 28.2% 13.1% CTAS
Less leveragedLower net debt / EBITDA 2.3x 0.7x 2.7x CTAS
Higher dividend yieldTrailing dividend yield 0.01% 0.01% 0.02% MRSH
Better 1-year returnPrice return, last 12 months -1.4% +18.6% +9.5% CTAS
Better 5-year returnAnnualised price return, 5 years +0.1%/yr +15.0%/yr +3.4%/yr CTAS
Less volatileAnnualised volatility, 1 year 29.5% 23.7% 25.9% CTAS
Higher overall scoreMean of the five percentile scores vs peers 38/100 61/100 32/100 CTAS

Percentile Scorecard

AONCTASMRSH

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

AxisAONCTASMRSH
Valuation 10 #107 of 119 21 #90 of 113 9 #108 of 119
Growth 42 #67 of 114 73 #27 of 96 16 #96 of 114
Profitability 74 #28 of 106 99 #2 of 91 70 #33 of 106
Financial Health 18 #86 of 104 69 #38 of 122 10 #94 of 104
Shareholder Returns 45 #58 of 105 43 #38 of 66 58 #45 of 105
Overall 38 61 32
  • AON ranked among 126 companies in Insurance
  • CTAS ranked among 130 companies in Business Services
  • MRSH ranked among 126 companies in Insurance

Price Performance

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

Returns

PeriodAONCTASMRSHSPY
1 month +16.6%+10.3%+15.6% +0.7%
3 months -12.2%+5.5%+2.9% +3.7%
6 months +3.2%+24.8%+17.5% +7.1%
Year to date -8.8%+16.0%+6.2% +12.8%
1 year -1.4%+18.6%+9.5% +11.9%
3 years +4.2%+73.5%+4.7% +85.2%
3 years, per year +1.4%+20.2%+1.5% +22.8%
5 years +0.5%+101.4%+18.1% +67.6%
5 years, per year +0.1%+15.0%+3.4% +10.9%
10 years +189.0%+723.4%+210.5% +262.0%
10 years, per year +11.2%+23.5%+12.0% +13.7%

Risk

MeasureAONCTASMRSHSPY
Volatility, 1Y 29.5%23.7%25.9% 12.7%
Downside volatility, 1Y 31.0%23.9%24.7% 12.6%
Beta vs S&P 500, 1Y -0.300.10-0.39 1.00
Return / volatility, 1Y -0.050.780.37 0.94
Max drawdown, 5Y -34.2%-28.2%-35.6% -25.4%
From 52-week high -15.6%-3.5%-1.2% -1.2%
52-week high $381.11$225.93$199.34 $779.14
52-week low $269.45$163.55$157.32 $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.

MultipleAONCTASMRSH
P/E now vs peer median 17.4xmedian 10.7x 42.3xmedian 21.9x 23.2xmedian 10.7x
P/S now vs peer median 3.9xmedian 1.4x 7.5xmedian 0.9x 3.3xmedian 1.4x
EV/EBITDA now vs peer median 14.7xmedian 7.5x 27.8xmedian 11.9x 16.0xmedian 7.5x
P/FCF now vs peer median 20.9xmedian 8.5x 42.8xmedian 14.4x 22.5xmedian 8.5x
P/B now vs peer median 6.7xmedian 1.5x 16.7xmedian 2.4x 6.3xmedian 1.5x
PEG now vs peer median 1.51median 0.60 2.79median 0.97 3.47median 0.60

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 monthsAONCTASMRSH
Revenue $17.68B $11.56B $28.46B
Gross profit – $5.89B –
Operating income $4.65B $2.70B $6.09B
Net income $4.01B $2.06B $4.12B
Free cash flow $3.27B $2.03B $4.15B
EPS (diluted) $18.46 $5.10 $8.44
Cash & equivalents $2.02B $243.60M $1.84B
Total debt $28.04B $2.43B $20.53B
Shares (diluted) 213.00M 404.29M 479.00M
Enterprise value $47.70B $87.11B $87.77B

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
MetricAONCTASMRSH
P/E 17.4x 42.3x 23.2x
P/FCF 20.9x 42.8x 22.5x
P/Operating cash flow 19.1x 35.8x 20.9x
P/S 3.9x 7.5x 3.3x
P/B 6.7x 16.7x 6.3x
P/Tangible book 14.5x 17.7x 9.0x
EV/EBITDA 14.7x 27.8x 16.0x
EV/EBIT 17.4x 33.1x 18.4x
EV/Revenue 4.6x 7.7x 3.9x
EV/FCF 24.8x 43.9x 27.0x
EV/Operating cash flow 22.7x 36.7x 25.1x
PEG (3Y EPS CAGR) 1.51 2.79 3.47

Growth

14 metrics
MetricAONCTASMRSH
Revenue growth (1Y) 3.8% 9.5% 7.6%
Revenue CAGR (3Y) 10.4% 8.7% 8.6%
Gross profit growth (1Y) – 11.5% –
Gross profit CAGR (3Y) – 11.2% –
Operating income growth (1Y) 9.9% 11.8% -1.0%
Operating income CAGR (3Y) 5.0% 13.2% 7.8%
Net income growth (1Y) 44.1% 11.3% -1.9%
Net income CAGR (3Y) 12.8% 14.3% 5.5%
EPS growth (1Y) 47.2% 12.7% 1.0%
EPS CAGR (3Y) 11.5% 15.2% 6.7%
Operating cash flow growth (1Y) 8.8% 14.8% -12.1%
Operating cash flow CAGR (3Y) 3.6% 14.4% 4.0%
Free cash flow growth (1Y) 7.4% 19.5% -13.9%
Free cash flow CAGR (3Y) 3.5% 17.4% 5.1%

Profitability

14 metrics
MetricAONCTASMRSH
Gross margin – 51.0% –
EBITDA margin 31.2% 27.8% 24.6%
Operating margin 26.3% 23.4% 21.4%
Pretax margin 28.8% 22.5% 18.9%
Net margin 22.2% 17.8% 14.2%
FCF margin 18.5% 17.6% 14.6%
Operating cash flow margin 20.2% 21.1% 15.7%
Return on equity 40.3% 39.8% 27.2%
Return on assets 6.8% 19.5% 6.9%
Return on invested capital 11.6% 28.2% 13.1%
Return on capital employed 13.6% 34.2% 16.2%
Asset turnover 0.3x 1.1x 0.5x
Cash conversion (OCF / net income) 0.9x 1.2x 1.1x
Stock comp / revenue 2.1% 1.1% 1.5%

Financial Health

11 metrics
MetricAONCTASMRSH
Debt / assets 43.0% 22.8% 34.3%
Debt / equity 2.7x 0.5x 1.4x
Net debt / EBITDA 2.3x 0.7x 2.7x
Debt / FCF 8.6x 1.2x 4.9x
Liabilities / assets 84.3% 51.1% 75.1%
Equity / assets 15.7% 48.9% 24.9%
Interest coverage 6.2x 25.3x 6.3x
Current ratio 1.6x 1.5x 1.1x
Quick ratio 0.8x 0.7x 0.5x
Cash ratio 0.6x 0.1x 0.1x
Altman Z-score 1.53 13.42 2.79

Shareholder Returns

7 metrics
MetricAONCTASMRSH
Dividend yield 1.0% 0.9% 1.9%
Net buyback yield 1.9% 1.1% 3.1%
Shareholder yield 2.9% 2.0% 5.0%
Payout ratio (earnings) 16.8% 35.2% 43.6%
Payout ratio (FCF) 20.6% 35.6% 43.3%
Dividend growth (1Y) 9.4% 14.8% 8.4%
Dividend CAGR (3Y) 11.7% 15.5% 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.

ConsensusAONCTASMRSH
Forward P/E 17.7xFY2026 37.3xFY2026 19.3xFY2026
EPS, next fiscal year $18.15FY2026 $5.85FY2026 $10.21FY2026
EPS growth, next FY +6.3%FY2026 +18.4%FY2026 +4.7%FY2026
EPS growth, the year after +8.1% +10.4% +15.4%
Revenue, next fiscal year $19.12BFY2026 $12.98BFY2026 $30.28BFY2026
Revenue growth, next FY +11.3%FY2026 +15.3%FY2026 +12.2%FY2026
Revenue growth, the year after +8.7% +6.8% +6.4%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAONCTASMRSH
Held by institutions 90.5% 67.6% 93.9%
Institutions holding 1,255 1,432 1,498
Change in shares held, QoQ +3.1% +6.4% +2.8%
Institutions buying 604 659 626
Institutions selling 448 576 652
Buyers to sellers 1.35 1.14 0.96

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.

AONCTASMRSH
AON 1.00 0.35 0.80
CTAS 0.35 1.00 0.44
MRSH 0.80 0.44 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, AON, CTAS and MRSH?

Marsh & Mclennan Companies (MRSH) is the largest by market capitalisation: Aon (AON) $68.49B, Cintas (CTAS) $88.02B, Marsh & Mclennan Companies (MRSH) $95.61B.

Which stock is cheaper, AON, CTAS and MRSH?

Aon (AON) trades on the lowest price-to-earnings ratio (Aon (AON) 17.4x, Cintas (CTAS) 42.7x, Marsh & Mclennan Companies (MRSH) 23.7x). On next year's consensus earnings, Aon (AON) is cheapest (Aon (AON) 17.7x, Cintas (CTAS) 37.3x, Marsh & Mclennan Companies (MRSH) 19.3x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Cintas (CTAS) grew revenue fastest over the trailing twelve months: Aon (AON) +3.8%, Cintas (CTAS) +9.5%, Marsh & Mclennan Companies (MRSH) +7.6%.

Which company is more profitable?

Aon (AON) has the highest net margin (Aon (AON) 22.2%, Cintas (CTAS) 17.8%, Marsh & Mclennan Companies (MRSH) 14.2%). On return on invested capital, Cintas (CTAS) leads (Aon (AON) 11.6%, Cintas (CTAS) 28.2%, Marsh & Mclennan Companies (MRSH) 13.1%).

Which stock has performed better?

Over the past year Cintas (CTAS) returned the most: Aon (AON) -1.4%, Cintas (CTAS) +18.6%, Marsh & Mclennan Companies (MRSH) +9.5%. Over five years, Cintas (CTAS) compounded fastest (Aon (AON) +0.1%/yr, Cintas (CTAS) +15.0%/yr, Marsh & Mclennan Companies (MRSH) +3.4%/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%, Cintas (CTAS) 0.01%, Marsh & Mclennan Companies (MRSH) 0.02%.

Which stock is riskier?

By one-year price volatility, Cintas (CTAS) has been the steadiest (Aon (AON) 29.5%, Cintas (CTAS) 23.7%, Marsh & Mclennan Companies (MRSH) 25.9%). Volatility measures how widely the price swings, not the risk of the business.

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

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Cintas (CTAS) leads on 7. 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.