Observatory · observe first
West Pharmaceutical Services
WST · United States · Health Care Supplies · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.086%
12M weight contribution
+0.086 pp
3M weight contribution
+0.086 pp
12M price return
+87.7%
Share of matched S&P 500 members
Monthly observations through Nov 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 |
|---|---|---|---|---|---|
| Nov 2020 | $20.3bn | 0.086% | +0.086 pp | +87.7% | Yes |
| Oct 2020 | $20.1bn | 0.095% | +0.095 pp | +89.6% | Yes |
| Sep 2020 | $20.3bn | 0.000% | +0.000 pp | +94.6% | Yes |
| Aug 2020 | $21.0bn | 0.000% | +0.000 pp | +95.9% | Yes |
| Jul 2020 | $19.9bn | 0.000% | +0.000 pp | +96.6% | Yes |
| Jun 2020 | $16.7bn | 0.000% | +0.000 pp | +82.3% | Yes |
| May 2020 | $15.9bn | 0.000% | +0.000 pp | +89.3% | 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.