Insurance Brokers
Insurance Brokers is losing market weight. Gained weight for 1 consecutive month.
Most of this industry's losses came from a few companies.
Where did the weight change come from?
12-month contribution in universe percentage points · contributions add to the industry change
The three largest same-direction contributors explain 83% of gross losses. Opposing contributions can make an individual company’s change larger than the industry’s net change.
How has it moved through history?
Share of matched S&P 500 members
Dec 2020 – Nov 2025 · market weight (%)
Relative performance
Industry return versus ACWI · no future data shown
Is participation broad or concentrated?
Actual constituent counts at this date, not the legacy synthetic breadth proxy
This is size concentration, not contribution to the 12-month change. The attribution above measures the latter.
Evidence can disagree
Independent dimensions · no combined score or bullish/bearish verdict
Other evidence and availability
Valuation data: unavailable; shown as zero placeholder.
Attention data: unavailable; shown as zero placeholder.
Actual fund flows: unavailable. No ETF, mutual-fund or institutional flow feed is connected.
Volume / turnover: unavailable in this dataset.
Follow the contribution to individual companies
Sorted by absolute 12-month weight contribution, not investment merit
| Company | Sub-industry | Country | Universe weight | 12M contribution | 12M price return | Revisions |
|---|---|---|---|---|---|---|
| Marsh McLennan → MRSH | Insurance Brokers | United States | 0.177% | -0.076 pp | -20.1% | 0.0 |
| Aon plc → AON | Insurance Brokers | United States | 0.149% | -0.037 pp | -9.1% | 0.0 |
| Arthur J. Gallagher & Co. → AJG | Insurance Brokers | United States | 0.125% | -0.026 pp | -20.1% | 0.0 |
| Brown & Brown → BRO | Insurance Brokers | United States | 0.054% | -0.017 pp | -28.4% | 0.0 |
| Willis Towers Watson → WTW | Insurance Brokers | United States | 0.060% | -0.011 pp | +0.8% | 0.0 |
Underlying monthly industry observations
| Month | Weight | 1M change | 3M change | 6M change | 12M change | Relative return · 12M |
|---|---|---|---|---|---|---|
| Nov 2025 | 0.565% | +0.013 pp | -0.102 pp | -0.224 pp | -0.169 pp | -29.2% |
| Oct 2025 | 0.552% | -0.089 pp | -0.101 pp | -0.244 pp | -0.173 pp | -28.1% |
| Sep 2025 | 0.641% | -0.026 pp | -0.069 pp | -0.222 pp | -0.072 pp | -13.9% |
| Aug 2025 | 0.667% | +0.014 pp | -0.122 pp | -0.136 pp | -0.083 pp | -13.4% |
| Jul 2025 | 0.653% | -0.056 pp | -0.143 pp | -0.050 pp | +0.115 pp | -13.8% |
| Jun 2025 | 0.709% | -0.080 pp | -0.153 pp | +0.018 pp | +0.191 pp | +0.1% |
| May 2025 | 0.789% | -0.007 pp | -0.014 pp | +0.055 pp | +0.272 pp | +11.3% |
| Apr 2025 | 0.796% | -0.066 pp | +0.094 pp | +0.071 pp | +0.045 pp | +11.6% |
| Mar 2025 | 0.862% | +0.060 pp | +0.171 pp | +0.150 pp | +0.100 pp | +17.9% |
| Feb 2025 | 0.803% | +0.100 pp | +0.069 pp | +0.053 pp | +0.038 pp | +11.8% |
| Jan 2025 | 0.703% | +0.011 pp | -0.022 pp | +0.165 pp | -0.049 pp | +2.7% |
| Dec 2024 | 0.692% | -0.042 pp | -0.021 pp | +0.173 pp | -0.040 pp | +5.2% |
| Nov 2024 | 0.734% | +0.008 pp | -0.016 pp | +0.217 pp | -0.091 pp | -1.3% |
| Oct 2024 | 0.725% | +0.013 pp | +0.188 pp | -0.026 pp | -0.126 pp | -7.5% |
| Sep 2024 | 0.712% | -0.037 pp | +0.194 pp | -0.050 pp | -0.125 pp | -7.6% |
| Aug 2024 | 0.750% | +0.212 pp | +0.233 pp | -0.015 pp | -0.067 pp | -2.2% |
| Jul 2024 | 0.538% | +0.019 pp | -0.214 pp | -0.214 pp | +0.002 pp | +3.9% |
| Jun 2024 | 0.519% | +0.001 pp | -0.244 pp | -0.213 pp | -0.072 pp | -9.2% |
| May 2024 | 0.517% | -0.234 pp | -0.248 pp | -0.308 pp | -0.057 pp | -6.0% |
| Apr 2024 | 0.751% | -0.011 pp | -0.001 pp | -0.100 pp | -0.068 pp | -8.8% |
| Mar 2024 | 0.762% | -0.003 pp | +0.031 pp | -0.075 pp | -0.018 pp | -0.4% |
| Feb 2024 | 0.765% | +0.013 pp | -0.060 pp | -0.052 pp | -0.020 pp | -0.8% |
| Jan 2024 | 0.752% | +0.020 pp | -0.099 pp | +0.216 pp | -0.063 pp | -4.7% |
| Dec 2023 | 0.732% | -0.093 pp | -0.105 pp | +0.142 pp | -0.086 pp | -9.4% |
| Nov 2023 | 0.825% | -0.027 pp | +0.008 pp | +0.250 pp | +0.027 pp | +3.4% |
| Oct 2023 | 0.851% | +0.014 pp | +0.316 pp | +0.032 pp | +0.078 pp | +6.1% |
| Sep 2023 | 0.837% | +0.020 pp | +0.247 pp | +0.057 pp | +0.027 pp | +3.2% |
| Aug 2023 | 0.817% | +0.281 pp | +0.242 pp | +0.032 pp | +0.036 pp | +5.5% |
| Jul 2023 | 0.536% | -0.054 pp | -0.284 pp | -0.279 pp | -0.227 pp | +1.0% |
| Jun 2023 | 0.590% | +0.016 pp | -0.190 pp | -0.227 pp | -0.218 pp | +8.5% |
| May 2023 | 0.574% | -0.245 pp | -0.210 pp | -0.224 pp | -0.193 pp | +11.0% |
| Apr 2023 | 0.819% | +0.039 pp | +0.005 pp | +0.046 pp | +0.028 pp | +11.2% |
| Mar 2023 | 0.780% | -0.004 pp | -0.037 pp | -0.030 pp | -0.027 pp | +6.4% |
| Feb 2023 | 0.785% | -0.030 pp | -0.013 pp | +0.004 pp | +0.025 pp | +15.4% |
| Jan 2023 | 0.815% | -0.003 pp | +0.041 pp | +0.052 pp | +0.078 pp | +24.1% |
| Dec 2022 | 0.817% | +0.019 pp | +0.007 pp | +0.009 pp | +0.148 pp | +20.9% |
| Nov 2022 | 0.798% | +0.025 pp | +0.017 pp | +0.031 pp | +0.123 pp | +20.4% |
| Oct 2022 | 0.773% | -0.037 pp | +0.011 pp | -0.018 pp | +0.081 pp | +19.4% |
| Sep 2022 | 0.810% | +0.029 pp | +0.002 pp | +0.003 pp | +0.152 pp | +26.0% |
| Aug 2022 | 0.781% | +0.018 pp | +0.013 pp | +0.022 pp | +0.199 pp | +24.6% |
| Jul 2022 | 0.763% | -0.046 pp | -0.029 pp | +0.026 pp | +0.207 pp | +27.4% |
| Jun 2022 | 0.809% | +0.041 pp | +0.001 pp | +0.139 pp | +0.269 pp | +32.6% |
| May 2022 | 0.768% | -0.024 pp | +0.008 pp | +0.092 pp | +0.208 pp | +20.6% |
| Apr 2022 | 0.792% | -0.016 pp | +0.055 pp | +0.099 pp | +0.233 pp | +24.4% |
| Mar 2022 | 0.808% | +0.048 pp | +0.138 pp | +0.149 pp | +0.538 pp | +33.0% |
| Feb 2022 | 0.759% | +0.022 pp | +0.084 pp | +0.177 pp | +0.493 pp | +24.6% |
| Jan 2022 | 0.737% | +0.067 pp | +0.044 pp | +0.181 pp | +0.439 pp | +24.9% |
| Dec 2021 | 0.670% | -0.006 pp | +0.011 pp | +0.130 pp | +0.138 pp | +24.6% |
| Nov 2021 | 0.675% | -0.017 pp | +0.093 pp | +0.116 pp | +0.135 pp | +22.2% |
| Oct 2021 | 0.692% | +0.034 pp | +0.137 pp | +0.134 pp | +0.150 pp | +23.0% |
| Sep 2021 | 0.659% | +0.076 pp | +0.119 pp | +0.389 pp | -99.242 pp | +16.6% |
| Aug 2021 | 0.582% | +0.026 pp | +0.022 pp | +0.316 pp | -99.315 pp | +17.2% |
| Jul 2021 | 0.556% | +0.016 pp | -0.003 pp | +0.258 pp | -99.349 pp | +3.0% |
| Jun 2021 | 0.540% | -0.020 pp | +0.270 pp | +0.008 pp | -99.359 pp | +3.2% |
| May 2021 | 0.560% | +0.001 pp | +0.293 pp | +0.020 pp | -99.336 pp | +7.7% |
| Apr 2021 | 0.559% | +0.289 pp | +0.261 pp | +0.017 pp | -0.022 pp | +15.4% |
| Mar 2021 | 0.270% | +0.004 pp | -0.262 pp | -99.630 pp | +0.270 pp | +5.1% |
| Feb 2021 | 0.266% | -0.032 pp | -0.274 pp | -99.631 pp | +0.266 pp | -1.8% |
| Jan 2021 | 0.298% | -0.234 pp | -0.244 pp | -99.607 pp | -0.329 pp | -4.9% |
| Dec 2020 | 0.532% | -0.008 pp | -99.368 pp | -99.366 pp | -0.070 pp | +5.3% |
How are these descriptive states defined?
Gaining / losing: 12-month weight change above +0.005pp / below −0.005pp. Direction and speed are separate dimensions, not mutually exclusive recommendations.
Accelerating / slowing: compare the most recent 3M change with the preceding 3M change. Accelerating means a positive change speeds up by >0.02pp. Slowing means the magnitude of movement declines by >0.02pp. A falling industry can also slow.
Reversing: the last two 3M changes have opposite signs, outside a ±0.005pp tolerance. Persistence counts consecutive same-direction monthly changes.
Broad / concentrated: company attribution, not a market-cap concentration shortcut. Concentrated means the three largest same-direction contributors account for ≥70% of gross same-direction changes; otherwise broad requires ≥60% of constituents moving with the industry. Other cases are mixed.
Weights use matched S&P 500 members’ market-cap estimates, based on SEC-reported shares available by each month-end and monthly closing prices. Companies without a matched price or share record are omitted, so the denominator is the matched sample rather than every index member. These are not official float-adjusted S&P weights. Flow is not measured.