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
0.253%
12M weight contribution
+0.252 pp
3M weight contribution
+0.132 pp
12M price return
+33.2%
Share of matched S&P 500 members
Monthly observations through Jun 2021
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 |
|---|---|---|---|---|---|
| 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 |
| May 2020 | $53.6bn | 0.000% | -0.282 pp | +12.9% | No |
| Apr 2020 | $49.0bn | 0.274% | +0.008 pp | +5.2% | Yes |
| Mar 2020 | $43.6bn | 0.000% | -0.272 pp | -6.3% | No |
| Feb 2020 | $52.7bn | 0.000% | -0.272 pp | +14.4% | No |
| Jan 2020 | $56.5bn | 0.278% | +0.132 pp | +29.1% | Yes |
| Dec 2019 | $56.2bn | 0.276% | +0.132 pp | +42.3% | Yes |
| Nov 2019 | $54.5bn | 0.275% | +0.126 pp | +24.1% | Yes |
| Oct 2019 | $52.3bn | 0.273% | +0.128 pp | +24.6% | No |
| Sep 2019 | $50.7bn | 0.269% | +0.136 pp | +23.3% | No |
| Aug 2019 | $50.6bn | 0.275% | +0.137 pp | +20.3% | Yes |
| Jul 2019 | $50.1bn | 0.267% | +0.021 pp | +20.8% | 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.