BRO vs. AON
BRO (Brown & Brown, Inc.) and AON (Aon plc) are both stocks. Both operate in the Insurance Brokers industry within the Financial Services sector. Over the past 10 years, BRO returned 15.46%/yr vs 13.80%/yr for AON. Their 0.43 correlation means their historical movements had little consistent relationship.
Performance
BRO vs. AON - Performance Comparison
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Returns By Period
In the year-to-date period, BRO achieves a -11.21% return, which is significantly lower than AON's 2.66% return. Over the past 10 years, BRO has outperformed AON with an annualized return of 15.46%, while AON has yielded a comparatively lower 13.80% annualized return.
BRO
- 1D
- -0.66%
- 1M
- 0.57%
- 6M
- -1.85%
- YTD
- -11.21%
- 1Y
- -23.00%
- 3Y*
- 0.90%
- 5Y*
- 6.03%
- 10Y*
- 15.46%
- ALL TIME*
- 14.99%
AON
- 1D
- -1.64%
- 1M
- 0.86%
- 6M
- 3.61%
- YTD
- 2.66%
- 1Y
- 2.72%
- 3Y*
- 4.93%
- 5Y*
- 7.57%
- 10Y*
- 13.80%
- ALL TIME*
- 11.71%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
AON Aon plc | $616.55M | $496.49M | $533.99M |
| $233.14M | $199.03M | $196.80M |
BRO vs. AON - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BRO Brown & Brown, Inc. | -11.21% | -21.37% | 44.32% | 25.73% | -18.39% | 49.31% | 21.06% | 44.67% | 8.30% | 16.15% |
AON Aon plc | 2.66% | -0.94% | 24.45% | -2.31% | 0.61% | 43.39% | 2.37% | 44.68% | 9.94% | 21.49% |
Correlation
The correlation between BRO and AON is 0.72, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.72 |
Correlation (3Y) Balances recent behavior with more history. | 0.68 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.72 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.68 |
Correlation (All Time) Calculated using the full available price history since Mar 3, 1992 | 0.43 |
Over the past year, BRO and AON have become more correlated (0.72) than their long-term average of 0.43, meaning their price movements have been converging.
Fundamentals
BRO:
$23.56B
AON:
$76.48B
BRO:
$4.77
AON:
$18.14
BRO:
14.75
AON:
19.88
BRO:
1.08
AON:
0.50
BRO:
2.59
AON:
4.43
BRO:
$6.85B
AON:
$17.58B
BRO:
$4.04B
AON:
$14.61B
BRO:
$1.73B
AON:
$6.31B
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Return for Risk
BRO vs. AON — Risk / Return Rank
BRO
AON
BRO vs. AON - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Brown & Brown, Inc. (BRO) and Aon plc (AON). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| BRO | AON | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.83 | ||
| Sortino ratioReturn per unit of downside risk | -1.23 | ||
| Omega ratioGain probability vs. loss probability | 0.89 | 1.04 | -0.15 |
| Calmar ratioReturn relative to maximum drawdown | -0.51 | 0.13 | -0.65 |
| Martin ratioReturn relative to average drawdown | -0.89 | 0.24 | -1.12 |
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Drawdowns
BRO vs. AON - Drawdown Comparison
The maximum BRO drawdown since its inception was -55.85%, smaller than the maximum AON drawdown of -69.05%. Use the drawdown chart below to compare losses from any high point for BRO and AON.
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Drawdown Indicators
| BRO | AON | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.85% | -69.05% | +13.20% |
Max Drawdown (1Y)Largest decline over 1 year | -43.50% | -17.28% | -26.22% |
Max Drawdown (3Y)Largest decline over 3 years | -55.85% | -23.84% | -32.01% |
Max Drawdown (5Y)Largest decline over 5 years | -55.85% | -25.38% | -30.47% |
Max Drawdown (10Y)Largest decline over 10 years | -55.85% | -38.73% | -17.12% |
Current DrawdownCurrent decline from peak | -42.84% | -10.93% | -31.91% |
Average DrawdownAverage peak-to-trough decline | -13.66% | -13.67% | +0.01% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 25.07% | 9.71% | +15.36% |
Volatility
BRO vs. AON - Volatility Comparison
Brown & Brown, Inc. (BRO) has a higher volatility of 12.37% compared to Aon plc (AON) at 9.36%. This indicates that BRO's price experiences larger fluctuations and is considered to be riskier than AON based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BRO | AON | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 12.37% | 9.36% | +3.01% |
Volatility (6M)Calculated over the trailing 6-month period | 24.60% | 21.84% | +2.76% |
Volatility (1Y)Calculated over the trailing 1-year period | 30.08% | 25.21% | +4.87% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 25.61% | 23.14% | +2.47% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 24.03% | 23.61% | +0.42% |
Dividends
BRO vs. AON - Dividend Comparison
BRO's dividend yield for the trailing twelve months is around 0.92%, more than AON's 0.85% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AON Aon plc | 0.64% | 0.82% | 0.74% | 0.83% | 0.73% | 0.66% | 0.84% | 0.83% | 1.35% | 1.05% | 1.16% | 1.25% |
BRO Brown & Brown, Inc. | 0.92% | 0.77% | 0.53% | 0.67% | 0.74% | 0.54% | 0.73% | 0.82% | 1.11% | 1.08% | 1.12% | 1.41% |
Financials
BRO vs. AON - Financials Comparison
This section allows you to compare key financial metrics between Brown & Brown, Inc. and Aon plc. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
Frequently Asked Questions
BRO and AON have a correlation of 0.72, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BRO has higher volatility (12.37%) compared to AON (9.36%). In terms of maximum drawdown, BRO dropped -55.85% vs AON's -69.05%.
AON currently has the higher Sharpe Ratio (0.09 vs -0.74), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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