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
Pharmaceuticals4.68%+4.67 ppHealth Care Equipment3.16%+3.15 ppBiotechnology2.12%+2.12 ppLife Sciences Tools & Services2.11%+2.11 ppManaged Health Care2.02%+2.01 ppHealth Care Services0.86%+0.86 ppHealth Care Distributors0.29%+0.28 ppHealth Care Supplies0.28%+0.28 ppHealth Care Facilities0.24%+0.24 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.28%
Industry change · 12M
+0.28 pp
Health Care Supplies · contribution
+0.281 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2021 · 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 | $48.4bn | 0.171% | +0.087 pp | +0.171 pp | +122.6% | Yes |
| West Pharmaceutical Services → WST | United States | $26.5bn | 0.094% | +0.053 pp | +0.093 pp | +58.4% | Yes |
| Cooper Companies (The) → COO | United States | $4.9bn | 0.017% | +0.008 pp | +0.017 pp | +39.7% | Yes |
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.