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
0.040%
12M weight contribution
-0.026 pp
3M weight contribution
+0.007 pp
12M price return
-24.8%
Share of matched S&P 500 members
Monthly observations through Aug 2026
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 |
|---|---|---|---|---|---|
| Aug 2026 | $24.1bn | 0.040% | -0.026 pp | -24.8% | Yes |
| Jul 2026 | $23.6bn | 0.041% | -0.022 pp | -22.3% | Yes |
| Jun 2026 | $21.7bn | 0.038% | -0.031 pp | -41.6% | Yes |
| May 2026 | $19.1bn | 0.033% | -0.040 pp | -49.7% | No |
| Apr 2026 | $20.4bn | 0.028% | -0.048 pp | -45.2% | No |
| Mar 2026 | $22.2bn | 0.032% | -0.052 pp | -47.2% | No |
| Feb 2026 | $24.4bn | 0.034% | -0.042 pp | -39.0% | No |
| Jan 2026 | $24.6bn | 0.047% | -0.019 pp | -30.7% | No |
| Dec 2025 | $27.2bn | 0.053% | -0.013 pp | -21.4% | No |
| Nov 2025 | $27.5bn | 0.054% | -0.017 pp | -28.4% | No |
| Oct 2025 | $27.2bn | 0.053% | -0.017 pp | -23.4% | No |
| 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 |
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.