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
Pharmaceuticals5.63%+1.00 ppManaged Health Care2.70%+0.79 ppLife Sciences Tools & Services2.03%-0.24 ppHealth Care Supplies0.15%-0.16 ppHealth Care Services0.97%+0.15 ppHealth Care Equipment2.94%-0.15 ppBiotechnology2.65%+0.14 ppHealth Care Distributors0.41%+0.13 ppHealth Care Facilities0.21%-0.07 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.15%
Industry change · 12M
-0.16 pp
Health Care Supplies · contribution
-0.165 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2022 · 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 | $16.2bn | 0.064% | -0.009 pp | -0.121 pp | -68.9% | No |
| West Pharmaceutical Services → WST | United States | $18.2bn | 0.072% | -0.015 pp | -0.039 pp | -41.9% | No |
| Cooper Companies (The) → COO | United States | $3.3bn | 0.013% | -0.002 pp | -0.005 pp | -36.1% | 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.