Is AON or CME cheaper?

On trailing earnings, AON is cheaper: AON trades at a 19.62 P/E and CME at 20.74.

Which has grown faster, AON or CME?

Over the past five years, AON grew revenue faster — AON at a 8.99% CAGR versus CME at 7.93%.

Does AON or CME pay a bigger dividend?

AON yields 0.92% and CME yields 2.14% based on trailing dividends and the latest price.

Is AON or CME more profitable?

CME runs the higher net margin — AON at 22.54% versus CME at 62.77%.

Which has been the better investment, AON or CME?

Over the past 10-year, AON delivered the higher annualized total return — AON at 13.61% versus CME at 13.44%. Past performance doesn't predict future results.

Aon plc (AON) vs CME Group Inc. (CME)

AON leads on 9 of 14 compared metrics.

A side-by-side comparison of Aon plc and CME Group Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of July 9, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

AON

Aon plc

$75.94B

$355.56Financial Services

CME

CME Group Inc.

$86.86B

$239.71Financial Services

Total return — AON vs CME

growth of $100 · last 24y

AON +1823.1%CME +2733.0%CME compounded faster

AON CME

AON vs CME: by the numbers

•CME is the larger company ($86.86B vs $75.94B market cap).
•AON trades at the lower earnings multiple (19.62 vs 20.74 P/E).
•CME converts more revenue to profit (62.77% vs 22.54% net margin).
•AON grew revenue faster over the past five years (8.99% vs 7.93% CAGR).
•CME pays the higher dividend yield (2.14% vs 0.92%).

Which is better, AON or CME?

Metric tally: AON 9 · CME 5

It depends on what you're optimizing for:

ValueAON(lower P/E)

GrowthAON(faster 5Y revenue CAGR)

IncomeCME(higher dividend yield)

QualityAON(higher ROIC)

Metrics side by side

Valuation

Metric	AON	CME
P/E ratio	19.62●	20.74
Forward P/E	18.68●	19.85
P/S ratio	4.40●	13.06
P/B ratio	7.83	3.32●
PEG ratio	0.56●	1.59

Profitability

Metric	AON	CME
Gross margin	47.70%	86.34%●
Operating margin	27.56%	65.57%●
Net margin	22.54%	62.77%●
ROE	40.09%●	15.94%
ROIC	12.16%●	1.62%

Dividends

Metric	AON	CME
Dividend yield	0.92%	2.14%●
Payout ratio	19.15%	46.51%

Growth (annualized)

Metric	AON	CME
Revenue CAGR (5Y)	8.99%●	7.93%
EPS CAGR (5Y)	15.07%●	13.72%
Total return CAGR (5Y)	9.61%●	7.12%

Frequently asked

Which is better, AON or CME?: It depends on your goal. value: AON (lower P/E); growth: AON (faster 5Y revenue CAGR); income: CME (higher dividend yield); quality: AON (higher ROIC). Across all compared metrics, AON leads 9 to 5.
Is AON or CME cheaper?: On trailing earnings, AON is cheaper: AON trades at a 19.62 P/E and CME at 20.74.
Which has grown faster, AON or CME?: Over the past five years, AON grew revenue faster — AON at a 8.99% CAGR versus CME at 7.93%.
Does AON or CME pay a bigger dividend?: AON yields 0.92% and CME yields 2.14% based on trailing dividends and the latest price.
Is AON or CME more profitable?: CME runs the higher net margin — AON at 22.54% versus CME at 62.77%.
Which has been the better investment, AON or CME?: Over the past 10-year, AON delivered the higher annualized total return — AON at 13.61% versus CME at 13.44%. Past performance doesn't predict future results.

Go deeper

Full AON analysis Full CME analysis Interactive comparison tool

Dig into the metrics

Aon P/E ratio CME P/E ratio Aon dividend yield CME dividend yield Aon ROE CME ROE Aon operating margin CME operating margin Aon revenue growth CME revenue growth Aon free cash flow CME free cash flow

Aon & CME appear in these rankings

Highest Dividend Yield Stocks Highest ROE Stocks Highest Operating Margin Stocks Highest FCF Yield Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified July 9, 2026.