Observatory · observe first
Follow the allocation change
Matched S&P 500 members → sector → industry → sub-industry → company. Each step uses the same percentage points.
Historical time machine
Historical observation
20182026
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Health Care
Health Care Equipment1.93%-0.40 ppManaged Health Care1.27%-0.23 ppLife Sciences Tools & Services1.02%-0.22 ppPharmaceuticals3.49%-0.22 ppHealth Care Services0.40%-0.10 ppHealth Care Facilities0.16%-0.04 ppHealth Care Supplies0.11%-0.03 ppBiotechnology1.63%-0.02 ppHealth Care Distributors0.29%-0.02 ppHealth Care Technology0.02%+0.02 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.11%
Industry change · 12M
-0.03 pp
Health Care Supplies · contribution
-0.028 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2024 · sorted by absolute contribution to 12-month change
| Company | Country | Market cap | Universe weight | 3M contribution | 12M contribution | 12M price return | Above 6M weight average |
|---|---|---|---|---|---|---|---|
| Align Technology → ALGN | United States | $18.2bn | 0.034% | -0.034 pp | -0.029 pp | -31.7% | No |
| Cooper Companies (The) → COO | United States | $17.4bn | 0.033% | -0.023 pp | +0.022 pp | -8.9% | No |
| West Pharmaceutical Services → WST | United States | $24.0bn | 0.045% | -0.035 pp | -0.021 pp | -13.7% | No |
Company contributions use weights among matched S&P 500 members and add through each level without rescaling. Companies without matched shares and prices are omitted. These observations do not establish official index weights or actual fund flows.