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
Pharmaceuticals5.61%+1.00 ppBiotechnology2.57%+0.50 ppManaged Health Care2.50%+0.40 ppHealth Care Supplies0.18%-0.10 ppHealth Care Distributors0.39%+0.10 ppLife Sciences Tools & Services2.06%+0.06 ppHealth Care Facilities0.22%-0.03 ppHealth Care Equipment3.11%-0.02 ppHealth Care Services0.93%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.18%
Industry change · 12M
-0.10 pp
Health Care Supplies · contribution
-0.099 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 | $21.9bn | 0.079% | -0.061 pp | -0.089 pp | -53.0% | No |
| West Pharmaceutical Services → WST | United States | $23.0bn | 0.083% | -0.017 pp | -0.009 pp | -10.5% | No |
| Cooper Companies (The) → COO | United States | $4.3bn | 0.016% | -0.002 pp | -0.002 pp | -10.8% | 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.