Observatory · observe first
Brown & Brown
BRO · United States · Insurance Brokers · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.062%
12M weight contribution
-0.007 pp
3M weight contribution
-0.007 pp
12M price return
-8.9%
Share of matched S&P 500 members
Monthly observations through Sep 2025
Company price index
A separate dimension from market allocation
Historical observations
Most recent 24 observations at or before the selected month
| Month | Market cap | Universe weight | 12M weight change | 12M return | Above 6M weight average |
|---|---|---|---|---|---|
| Sep 2025 | $30.9bn | 0.062% | -0.007 pp | -8.9% | No |
| Aug 2025 | $32.0bn | 0.066% | -0.006 pp | -7.2% | No |
| Jul 2025 | $30.1bn | 0.064% | +0.013 pp | -7.6% | No |
| Jun 2025 | $31.8bn | 0.069% | +0.021 pp | +24.7% | No |
| May 2025 | $32.4bn | 0.073% | +0.025 pp | +26.8% | No |
| Apr 2025 | $31.7bn | 0.076% | +0.009 pp | +36.4% | Yes |
| Mar 2025 | $35.6bn | 0.084% | +0.015 pp | +42.9% | Yes |
| Feb 2025 | $33.9bn | 0.076% | +0.007 pp | +41.6% | Yes |
| Jan 2025 | $29.9bn | 0.067% | +0.001 pp | +35.7% | No |
| Dec 2024 | $29.2bn | 0.066% | +0.006 pp | +44.3% | No |
| Nov 2024 | $32.3bn | 0.071% | +0.005 pp | +52.2% | Yes |
| Oct 2024 | $29.9bn | 0.070% | +0.003 pp | +51.4% | Yes |
| Sep 2024 | $29.6bn | 0.069% | +0.003 pp | +49.3% | Yes |
| Aug 2024 | $30.0bn | 0.072% | +0.005 pp | +42.8% | Yes |
| Jul 2024 | $28.4bn | 0.051% | +0.007 pp | +42.1% | No |
| Jun 2024 | $25.5bn | 0.048% | +0.003 pp | +30.8% | No |
| May 2024 | $25.5bn | 0.049% | +0.005 pp | +44.6% | No |
| Apr 2024 | $23.3bn | 0.067% | +0.006 pp | +27.5% | Yes |
| Mar 2024 | $25.0bn | 0.069% | +0.014 pp | +53.5% | Yes |
| Feb 2024 | $24.1bn | 0.069% | +0.013 pp | +51.2% | Yes |
| Jan 2024 | $22.1bn | 0.066% | +0.009 pp | +33.4% | Yes |
| Dec 2023 | $20.2bn | 0.060% | +0.002 pp | +25.7% | No |
| Nov 2023 | $21.3bn | 0.066% | +0.009 pp | +26.3% | Yes |
| Oct 2023 | $19.8bn | 0.067% | +0.008 pp | +19.2% | Yes |
Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.