Observatory · observe first
Willis Towers Watson
WTW · United States · Insurance Brokers · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.070%
12M weight contribution
-0.004 pp
3M weight contribution
+0.019 pp
12M price return
+42.8%
Share of matched S&P 500 members
Monthly observations through Sep 2024
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 |
|---|---|---|---|---|---|
| Sep 2024 | $29.9bn | 0.070% | -0.004 pp | +42.8% | Yes |
| Aug 2024 | $29.7bn | 0.072% | +0.003 pp | +43.3% | Yes |
| Jul 2024 | $28.7bn | 0.051% | +0.003 pp | +35.5% | No |
| Jun 2024 | $26.8bn | 0.050% | -0.008 pp | +12.9% | No |
| May 2024 | $26.1bn | 0.050% | -0.008 pp | +18.3% | No |
| Apr 2024 | $25.7bn | 0.074% | -0.009 pp | +10.0% | No |
| Mar 2024 | $28.2bn | 0.078% | -0.006 pp | +20.0% | No |
| Feb 2024 | $27.9bn | 0.080% | -0.008 pp | +18.1% | Yes |
| Jan 2024 | $25.4bn | 0.076% | -0.019 pp | -1.7% | No |
| Dec 2023 | $24.9bn | 0.074% | -0.021 pp | +0.1% | Yes |
| Nov 2023 | $25.4bn | 0.079% | -0.011 pp | +1.5% | Yes |
| Oct 2023 | $24.4bn | 0.083% | -0.001 pp | +9.7% | Yes |
| Sep 2023 | $21.9bn | 0.073% | -0.014 pp | +5.5% | Yes |
| Aug 2023 | $21.7bn | 0.069% | -0.012 pp | +1.4% | Yes |
| Jul 2023 | $22.2bn | 0.048% | -0.030 pp | +3.6% | No |
| Jun 2023 | $25.1bn | 0.058% | -0.028 pp | +21.1% | No |
| May 2023 | $23.3bn | 0.058% | -0.027 pp | +5.3% | No |
| Apr 2023 | $24.6bn | 0.083% | -0.003 pp | +9.4% | No |
| Mar 2023 | $24.8bn | 0.084% | -0.009 pp | -0.1% | No |
| Feb 2023 | $25.0bn | 0.088% | -0.003 pp | +7.0% | No |
| Jan 2023 | $27.5bn | 0.094% | -0.004 pp | +10.3% | Yes |
| Dec 2022 | $26.5bn | 0.096% | +0.096 pp | +4.5% | Yes |
| Nov 2022 | $26.6bn | 0.090% | +0.090 pp | +10.6% | Yes |
| Oct 2022 | $23.6bn | 0.084% | +0.084 pp | -8.6% | 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.