AON vs BRO
Aon (AON) and Brown & Brown (BRO) compared side by side. Aon (AON) is larger, with a market cap of $64.4B versus $24.4B for Brown & Brown, about 2.6 times the size. On trailing earnings, AON is cheaper at 16.7x versus 23.0x for BRO.
Head to head
| Metric | AON | BRO |
|---|---|---|
| Market cap | $64.4B | $24.4B |
| P/E (TTM) | 16.7x | 23.0x |
| Forward P/E | 15.0x | 15.1x |
| Revenue (TTM) | $17.6B | $6.7B |
| Revenue growth | 2.2% | 32.4% |
| Gross margin | 48.2% | 56.3% |
| Operating margin | 23.5% | 41.8% |
| Free cash flow | $3.2B | $1.4B |
| Dividend yield | 1.08% | 0.90% |
| 1-year return | -10.6% | -17.0% |
| 5-year return (annual) | -0.4% | +2.6% |
| Max drawdown | -67% | -56% |
| FI Handbook grade | C+ | C+ |
Highlighted: the stronger figure on metrics where higher or lower is clearly better.
Growth of $10,000 (5 years, price only)
AON vs BRO FAQ
Which is bigger, AON or BRO?
Aon (AON) is larger, with a market cap of $64.4B versus $24.4B for Brown & Brown, about 2.6 times the size.
Is AON or BRO cheaper?
On trailing earnings, AON is cheaper at 16.7x versus 23.0x for BRO. A lower P/E can reflect slower expected growth, so compare growth and margins too.
Which stock performed better over the past year, AON or BRO?
AON returned -10.6% over the past year including dividends, versus -17.0% for BRO, through October 23, 2026.
Which pays a higher dividend, AON or BRO?
AON yields 1.08% versus 0.90% for BRO.
Full pages: Aon · Brown & Brown