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
0.274%
12M weight contribution
+0.008 pp
3M weight contribution
-0.004 pp
12M price return
+5.2%
Share of matched S&P 500 members
Monthly observations through Apr 2020
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 |
|---|---|---|---|---|---|
| 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 |
| Jun 2019 | $50.6bn | 0.273% | +0.020 pp | +24.1% | Yes |
| May 2019 | $48.5bn | 0.282% | +0.035 pp | +21.3% | Yes |
| Apr 2019 | $47.8bn | 0.266% | +0.012 pp | +17.9% | Yes |
| Mar 2019 | $47.4bn | 0.272% | +0.015 pp | +15.9% | Yes |
| Feb 2019 | $47.0bn | 0.272% | +0.020 pp | +14.3% | Yes |
| Jan 2019 | $44.4bn | 0.147% | -0.097 pp | +7.7% | Yes |
| Dec 2018 | $40.2bn | 0.144% | -0.100 pp | -3.1% | No |
| Nov 2018 | $44.7bn | 0.148% | -0.095 pp | +7.8% | No |
| Oct 2018 | $42.7bn | 0.145% | -0.098 pp | +3.0% | No |
| Sep 2018 | $41.8bn | 0.133% | -0.110 pp | -0.0% | No |
| Aug 2018 | $42.7bn | 0.138% | -0.105 pp | +2.3% | No |
| Jul 2018 | $42.1bn | 0.246% | +0.002 pp | +0.8% | No |
| Jun 2018 | $41.6bn | 0.252% | +0.009 pp | -1.4% | Yes |
| May 2018 | $40.8bn | 0.248% | +0.004 pp | -3.3% | 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.