Aon (AON) vs Brown & Brown (BRO)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 7, 2026.
Summary
Aon (AON) has outperformed Brown & Brown (BRO) over the past year, losing 26.3% versus a loss of 35.4%. Over five years, BRO leads with a -4.0% price change compared with -12.6% for AON. Aon is the larger company by market cap ($57.37 billion vs $20.65 billion), about 2.8 times the size, while Brown & Brown is growing revenue faster (+22.8% vs +9.4%).
On valuation, Brown & Brown trades at a lower forward P/E (12.8x vs 13.4x for Aon). Aon offers the higher dividend yield (1.13% vs 1.05%). Aon converts more of its revenue into profit, with a net margin of 21.5% versus 17.9%.
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | AON | BRO |
|---|---|---|
| Share price | $270.47 | $61.72 |
| Market cap | $57.37B | $20.65B |
| 1-day change | -1.28% | +1.23% |
| YTD return | -23.35% | -22.56% |
| 1-year return | -26.29% | -35.41% |
| 5-year return | -12.55% | -4.04% |
| P/E ratio (TTM) | 14.91 | 19.47 |
| Forward P/E | 13.37 | 12.81 |
| EPS (TTM) | $18.14 | $3.17 |
| Dividend yield | 1.13% | 1.05% |
| Annual dividend | $3.06 | $0.645 |
| Revenue (latest FY) | $17.18B | $5.90B |
| Revenue growth (YoY) | +9.45% | +22.83% |
| Net income (latest FY) | $3.69B | $1.05B |
| Operating margin | 25.28% | — |
| Net margin | 21.51% | 17.86% |
| 52-week high | $382.34 | $96.55 |
| 52-week low | $266.33 | $53.81 |
| Distance from 52-week high | -29.26% | -36.07% |
| Analyst consensus | buy | hold |
| Avg. price target upside | +36.31% | +21.61% |
| Average volume | 1.53M | 2.27M |
| Shares outstanding | 212.13M | 334.61M |
| Employees | 60,000 | 22,888 |
| Sector | Finance | Finance |
| Industry | Specialty Insurers | Specialty Insurers |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- Aon is about 2.8 times larger than Brown & Brown by market value ($57.37B vs $20.65B).
- Brown & Brown trades at a higher earnings multiple (19.5x vs 14.9x trailing P/E).
- Brown & Brown grew revenue faster in its latest fiscal year (+22.83% vs +9.45%).
About Aon
AON stock →Aon plc operates as a professional services firm in the United States, rest of the Americas, the United Kingdom, Ireland, rest of Europe, the Middle East, Africa, and the Asia Pacific. It operates through Risk Capital and Human Capital segments.
Finance · Specialty Insurers · 60,000 employees
About Brown & Brown
BRO stock →Brown & Brown, Inc. markets and sells insurance products and services in the United States, the United Kingdom, and internationally.
Finance · Specialty Insurers · 22,888 employees
AON vs BRO FAQ
Which is bigger, Aon or Brown & Brown?
Aon (AON) is larger, with a market capitalization of $57.37B compared with $20.65B for Brown & Brown (BRO).
Which stock has performed better over the past year, AON or BRO?
AON returned -26.29% over the past 12 months, compared with -35.41% for BRO (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, AON or BRO?
AON has the lower trailing P/E at 14.9, versus 19.5 for BRO. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Which pays a higher dividend, Aon or Brown & Brown?
Aon has the higher yield at 1.13%, compared with 1.05% for Brown & Brown.
Are Aon and Brown & Brown in the same industry?
Yes. Both are classified in the Specialty Insurers industry within the Finance sector.