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 Equipment2.54%+0.61 ppManaged Health Care0.92%-0.34 ppBiotechnology1.77%+0.14 ppHealth Care Distributors0.43%+0.14 ppLife Sciences Tools & Services0.90%-0.12 ppHealth Care Services0.49%+0.09 ppHealth Care Facilities0.20%+0.04 ppHealth Care Supplies0.09%-0.02 ppHealth Care Technology0.03%+0.01 ppPharmaceuticals3.49%-0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.09%
Industry change · 12M
-0.02 pp
Health Care Supplies · contribution
-0.018 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2025 · 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 |
|---|---|---|---|---|---|---|---|
| West Pharmaceutical Services → WST | United States | $15.7bn | 0.034% | -0.005 pp | -0.011 pp | -33.4% | No |
| Align Technology → ALGN | United States | $13.7bn | 0.030% | +0.002 pp | -0.004 pp | -21.6% | No |
| Cooper Companies (The) → COO | United States | $14.2bn | 0.031% | -0.009 pp | -0.002 pp | -18.5% | 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.