Observatory · observe first
Marsh McLennan
MRSH · United States · Insurance Brokers · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.289%
12M weight contribution
+0.037 pp
3M weight contribution
+0.018 pp
12M price return
+17.2%
Share of matched S&P 500 members
Monthly observations through May 2022
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 |
|---|---|---|---|---|---|
| May 2022 | $80.3bn | 0.289% | +0.037 pp | +17.2% | Yes |
| Apr 2022 | $81.2bn | 0.293% | +0.043 pp | +20.8% | Yes |
| Mar 2022 | $85.7bn | 0.288% | +0.167 pp | +41.9% | Yes |
| Feb 2022 | $78.1bn | 0.271% | +0.154 pp | +36.8% | No |
| Jan 2022 | $77.6bn | 0.261% | +0.127 pp | +41.8% | No |
| Dec 2021 | $87.8bn | 0.281% | +0.041 pp | +50.8% | Yes |
| Nov 2021 | $82.8bn | 0.280% | +0.033 pp | +45.3% | Yes |
| Oct 2021 | $84.2bn | 0.281% | +0.033 pp | +63.7% | Yes |
| Sep 2021 | $76.7bn | 0.269% | +0.269 pp | +34.1% | Yes |
| Aug 2021 | $79.6bn | 0.266% | +0.266 pp | +39.0% | Yes |
| Jul 2021 | $74.6bn | 0.256% | +0.255 pp | +28.3% | Yes |
| Jun 2021 | $71.5bn | 0.253% | +0.252 pp | +33.2% | Yes |
| May 2021 | $70.4bn | 0.252% | +0.252 pp | +32.7% | Yes |
| Apr 2021 | $69.0bn | 0.250% | -0.024 pp | +41.7% | Yes |
| Mar 2021 | $61.9bn | 0.121% | +0.121 pp | +43.4% | No |
| Feb 2021 | $58.6bn | 0.117% | +0.117 pp | +12.2% | No |
| Jan 2021 | $55.7bn | 0.134% | -0.145 pp | +0.0% | No |
| Dec 2020 | $59.3bn | 0.240% | -0.036 pp | +6.9% | Yes |
| Nov 2020 | $58.1bn | 0.247% | -0.028 pp | +7.9% | Yes |
| Oct 2020 | $52.5bn | 0.248% | -0.024 pp | +1.6% | Yes |
| Sep 2020 | $58.1bn | 0.000% | -0.269 pp | +16.7% | No |
| Aug 2020 | $58.2bn | 0.000% | -0.275 pp | +17.1% | No |
| Jul 2020 | $59.1bn | 0.000% | -0.266 pp | +20.2% | No |
| Jun 2020 | $54.3bn | 0.000% | -0.272 pp | +9.6% | No |
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.