AON vs MRSH vs ERIE Stock Comparison

Aon, Marsh & Mclennan Companies and Erie Indemnity Prices as of Nov 5, 2026 Peers: Industry group
AON Aon plc
$344.42 +25.7% 1M +0.8% 1Y
Market cap
$73.07B
P/E
18.6x
Revenue (TTM)
$17.68B
Div. yield
0.93%
Insurance Brokers Financial Services
4 wins
ERIE Erie Indemnity Co
$285.63 +28.0% 1M -0.9% 1Y
Market cap
$13.19B
P/E
22.9x
Revenue (TTM)
$4.12B
Div. yield
2.05%
Insurance Brokers Financial Services
2 wins

Head to Head

12 decided of 12

Marsh & Mclennan Companies leads on 6 of the 12 questions below (Marsh & Mclennan Companies 6, Aon 4, Erie Indemnity 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAONMRSHERIELeader
Larger companyMarket capitalisation $73.07B $99.49B $13.19B MRSH
Cheaper on earningsLower P/E, profitable companies only 18.6x 24.7x 22.9x AON
Cheaper on forward earningsLower price / next fiscal year consensus EPS 19.1x 20.5x 23.6x AON
Faster revenue growthRevenue growth, trailing twelve months +3.8% +7.6% +2.0% MRSH
More profitableNet margin, trailing twelve months 22.2% 14.2% 14.0% AON
Better return on capitalReturn on invested capital 11.6% 13.1% — MRSH
Less leveragedLower net debt / EBITDA 2.3x 2.7x — AON
Higher dividend yieldTrailing dividend yield 0.93% 1.80% 2.05% ERIE
Better 1-year returnPrice return, last 12 months +0.8% +17.4% -0.9% MRSH
Better 5-year returnAnnualised price return, 5 years +3.6%/yr +5.3%/yr +5.0%/yr MRSH
Less volatileAnnualised volatility, 1 year 29.7% 26.2% 38.4% MRSH
Higher overall scoreMean of the five percentile scores vs peers 39/100 32/100 47/100 ERIE

Percentile Scorecard

AONMRSHERIE

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

AxisAONMRSHERIE
Valuation 12 #105 of 119 11 #106 of 119 14 #103 of 119
Growth 43 #67 of 117 17 #97 of 117 30 #82 of 117
Profitability 76 #29 of 117 68 #38 of 117 79 #25 of 117
Financial Health 23 #91 of 118 16 #99 of 118 84 #20 of 118
Shareholder Returns 42 #63 of 108 47 #58 of 108 30 #76 of 108
Overall 39 32 47
  • AON ranked among 126 companies in Insurance
  • MRSH ranked among 126 companies in Insurance
  • ERIE ranked among 126 companies in Insurance

Price Performance

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

Returns

PeriodAONMRSHERIESPY
1 month +25.7%+21.9%+28.0% -5.9%
3 months -4.5%+8.4%+12.4% -4.6%
6 months +9.8%+26.2%+31.8% +0.2%
Year to date -2.4%+12.9%-0.4% +7.5%
1 year +0.8%+17.4%-0.9% +8.2%
3 years +5.8%+7.6%+1.9% +68.3%
3 years, per year +1.9%+2.5%+0.6% +19.0%
5 years +19.4%+29.7%+27.3% +56.5%
5 years, per year +3.6%+5.3%+5.0% +9.4%
10 years +219.5%+227.8%+182.5% +251.5%
10 years, per year +12.3%+12.6%+10.9% +13.4%

Risk

MeasureAONMRSHERIESPY
Volatility, 1Y 29.7%26.2%38.4% 13.6%
Downside volatility, 1Y 30.9%24.9%39.2% 14.2%
Beta vs S&P 500, 1Y -0.22-0.31-0.48 1.00
Return / volatility, 1Y 0.030.67-0.02 0.60
Max drawdown, 5Y -34.2%-35.6%-62.0% -25.4%
From 52-week high -9.6%-0.5%-4.7% -5.9%
52-week high $381.11$210.46$299.78 $779.14
52-week low $269.45$157.32$207.24 $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.

MultipleAONMRSHERIE
P/E now vs peer median 18.6xmedian 10.9x 24.7xmedian 10.9x 22.9xmedian 10.9x
P/S now vs peer median 4.1xmedian 1.4x 3.5xmedian 1.4x 3.2xmedian 1.4x
EV/EBITDA now vs peer median 15.5xmedian 7.1x 16.9xmedian 7.1x —median 7.1x
P/FCF now vs peer median 22.4xmedian 8.3x 24.0xmedian 8.3x 23.8xmedian 8.3x
P/B now vs peer median 7.2xmedian 1.5x 6.7xmedian 1.5x 5.2xmedian 1.5x
PEG now vs peer median 1.61median 0.62 3.69median 0.62 1.78median 0.62

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 monthsAONMRSHERIE
Revenue $17.68B $28.46B $4.12B
Operating income $4.65B $6.09B $736.01M
Net income $4.01B $4.12B $576.14M
Free cash flow $3.27B $4.15B $554.04M
EPS (diluted) $18.46 $8.44 $226,647.13
Cash & equivalents $2.02B $1.84B $362.69M
Total debt $28.04B $20.53B –
Shares (diluted) 213.00M 479.00M 2.54K
Enterprise value $52.29B $91.89B $11.72B

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
MetricAONMRSHERIE
P/E 18.6x 24.7x 22.9x
P/FCF 22.4x 24.0x 23.8x
P/Operating cash flow 20.4x 22.2x 19.1x
P/S 4.1x 3.5x 3.2x
P/B 7.2x 6.7x 5.2x
P/Tangible book 15.5x 9.6x 5.2x
EV/EBITDA 15.5x 16.9x –
EV/EBIT 18.5x 19.4x 17.3x
EV/Revenue 4.9x 4.2x 3.1x
EV/FCF 26.3x 28.5x 23.0x
EV/Operating cash flow 24.0x 26.4x 18.5x
PEG (3Y EPS CAGR) 1.61 3.69 1.78

Growth

14 metrics
MetricAONMRSHERIE
Revenue growth (1Y) 3.8% 7.6% 2.0%
Revenue CAGR (3Y) 10.4% 8.6% 9.4%
Gross profit growth (1Y) – – –
Gross profit CAGR (3Y) – – –
Operating income growth (1Y) 9.9% -1.0% 1.3%
Operating income CAGR (3Y) 5.0% 7.8% 15.7%
Net income growth (1Y) 44.1% -1.9% -11.1%
Net income CAGR (3Y) 12.8% 5.5% 12.9%
EPS growth (1Y) 47.2% 1.0% -11.1%
EPS CAGR (3Y) 11.5% 6.7% 12.9%
Operating cash flow growth (1Y) 8.8% -12.1% -2.4%
Operating cash flow CAGR (3Y) 3.6% 4.0% 24.2%
Free cash flow growth (1Y) 7.4% -13.9% -4.0%
Free cash flow CAGR (3Y) 3.5% 5.1% 26.7%

Profitability

14 metrics
MetricAONMRSHERIE
Gross margin – – –
EBITDA margin 31.2% 24.6% –
Operating margin 26.3% 21.4% 17.9%
Pretax margin 28.8% 18.9% 17.8%
Net margin 22.2% 14.2% 14.0%
FCF margin 18.5% 14.6% 13.4%
Operating cash flow margin 20.2% 15.7% 16.8%
Return on equity 40.3% 27.2% 23.0%
Return on assets 6.8% 6.9% 16.0%
Return on invested capital 11.6% 13.1% –
Return on capital employed 13.6% 16.2% 28.3%
Asset turnover 0.3x 0.5x 1.1x
Cash conversion (OCF / net income) 0.9x 1.1x 1.2x
Stock comp / revenue 2.1% 1.5% –

Financial Health

11 metrics
MetricAONMRSHERIE
Debt / assets 43.0% 34.3% –
Debt / equity 2.7x 1.4x –
Net debt / EBITDA 2.3x 2.7x –
Debt / FCF 8.6x 4.9x –
Liabilities / assets 84.3% 75.1% 30.3%
Equity / assets 15.7% 24.9% 69.7%
Interest coverage 6.2x 6.3x –
Current ratio 1.6x 1.1x 1.3x
Quick ratio 0.8x 0.5x 1.2x
Cash ratio 0.6x 0.1x 0.4x
Altman Z-score 1.58 2.86 10.46

Shareholder Returns

7 metrics
MetricAONMRSHERIE
Dividend yield 0.9% 1.8% 2.0%
Net buyback yield 1.8% 2.9% –
Shareholder yield 2.7% 4.7% 2.0%
Payout ratio (earnings) 16.8% 43.6% 46.5%
Payout ratio (FCF) 20.6% 43.3% 48.4%
Dividend growth (1Y) 9.4% 8.4% 7.1%
Dividend CAGR (3Y) 11.7% 13.1% 7.1%

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.

ConsensusAONMRSHERIE
Forward P/E 19.1xFY2026 20.5xFY2026 23.6xFY2026
EPS, next fiscal year $18.02FY2026 $10.22FY2026 $12.09FY2026
EPS growth, next FY +5.6%FY2026 +4.8%FY2026 +13.1%FY2026
EPS growth, the year after +8.6% +15.3% +15.6%
Revenue, next fiscal year $19.12BFY2026 $30.28BFY2026 $4.05BFY2026
Revenue growth, next FY +11.3%FY2026 +12.2%FY2026 -0.6%FY2026
Revenue growth, the year after +9.6% +6.4% -1.2%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAONMRSHERIE
Held by institutions 90.5% 93.9% 45.2%
Institutions holding 1,257 1,501 438
Change in shares held, QoQ +3.1% +2.8% +4.5%
Institutions buying 604 626 272
Institutions selling 450 655 112
Buyers to sellers 1.34 0.96 2.43

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.

AONMRSHERIE
AON 1.00 0.80 0.57
MRSH 0.80 1.00 0.58
ERIE 0.57 0.58 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AON, MRSH and ERIE?

Marsh & Mclennan Companies (MRSH) is the largest by market capitalisation: Aon (AON) $73.07B, Marsh & Mclennan Companies (MRSH) $99.49B, Erie Indemnity (ERIE) $13.19B.

Which stock is cheaper, AON, MRSH and ERIE?

Aon (AON) trades on the lowest price-to-earnings ratio (Aon (AON) 18.6x, Marsh & Mclennan Companies (MRSH) 24.7x, Erie Indemnity (ERIE) 22.9x). On next year's consensus earnings, Aon (AON) is cheapest (Aon (AON) 19.1x, Marsh & Mclennan Companies (MRSH) 20.5x, Erie Indemnity (ERIE) 23.6x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Marsh & Mclennan Companies (MRSH) grew revenue fastest over the trailing twelve months: Aon (AON) +3.8%, Marsh & Mclennan Companies (MRSH) +7.6%, Erie Indemnity (ERIE) +2.0%.

Which company is more profitable?

Aon (AON) has the highest net margin (Aon (AON) 22.2%, Marsh & Mclennan Companies (MRSH) 14.2%, Erie Indemnity (ERIE) 14.0%). On return on invested capital, Marsh & Mclennan Companies (MRSH) leads (Aon (AON) 11.6%, Marsh & Mclennan Companies (MRSH) 13.1%).

Which stock has performed better?

Over the past year Marsh & Mclennan Companies (MRSH) returned the most: Aon (AON) +0.8%, Marsh & Mclennan Companies (MRSH) +17.4%, Erie Indemnity (ERIE) -0.9%. Over five years, Marsh & Mclennan Companies (MRSH) compounded fastest (Aon (AON) +3.6%/yr, Marsh & Mclennan Companies (MRSH) +5.3%/yr, Erie Indemnity (ERIE) +5.0%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Erie Indemnity (ERIE) has the highest dividend yield: Aon (AON) 0.93%, Marsh & Mclennan Companies (MRSH) 1.80%, Erie Indemnity (ERIE) 2.05%.

Which stock is riskier?

By one-year price volatility, Marsh & Mclennan Companies (MRSH) has been the steadiest (Aon (AON) 29.7%, Marsh & Mclennan Companies (MRSH) 26.2%, Erie Indemnity (ERIE) 38.4%). Volatility measures how widely the price swings, not the risk of the business.

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

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Marsh & Mclennan Companies (MRSH) 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.