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
Pharmaceuticals4.64%-0.39 ppBiotechnology2.35%-0.08 ppHealth Care Facilities0.27%+0.07 ppLife Sciences Tools & Services2.30%+0.06 ppHealth Care Equipment3.44%-0.04 ppHealth Care Distributors0.27%-0.04 ppManaged Health Care2.14%+0.03 ppHealth Care Services0.81%-0.03 ppHealth Care Supplies0.29%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.29%
Industry change · 12M
+0.01 pp
Health Care Supplies · contribution
+0.014 pp
Company participation
33%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 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 |
|---|---|---|---|---|---|---|---|
| West Pharmaceutical Services → WST | United States | $31.8bn | 0.106% | +0.002 pp | +0.011 pp | +58.3% | Yes |
| Align Technology → ALGN | United States | $49.3bn | 0.165% | -0.024 pp | +0.006 pp | +46.5% | No |
| Cooper Companies (The) → COO | United States | $5.1bn | 0.017% | -0.001 pp | -0.003 pp | +30.7% | 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.