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
Pharmaceuticals3.41%-0.36 ppManaged Health Care1.27%-0.36 ppHealth Care Equipment1.95%-0.35 ppLife Sciences Tools & Services1.09%-0.18 ppBiotechnology1.60%-0.16 ppHealth Care Services0.42%-0.08 ppHealth Care Technology0.02%+0.02 ppHealth Care Facilities0.17%-0.01 ppHealth Care Supplies0.12%-0.01 ppHealth Care Distributors0.29%-0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.12%
Industry change · 12M
-0.01 pp
Health Care Supplies · contribution
-0.007 pp
Company participation
33%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 |
|---|---|---|---|---|---|---|---|
| Cooper Companies (The) → COO | United States | $18.8bn | 0.036% | +0.023 pp | +0.025 pp | +1.5% | Yes |
| Align Technology → ALGN | United States | $19.4bn | 0.037% | -0.028 pp | -0.016 pp | -9.0% | No |
| West Pharmaceutical Services → WST | United States | $24.1bn | 0.046% | -0.029 pp | -0.015 pp | -0.7% | 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.