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
Pharmaceuticals5.04%+2.63 ppHealth Care Equipment3.25%+1.62 ppBiotechnology2.51%+1.38 ppManaged Health Care2.36%+1.33 ppLife Sciences Tools & Services2.10%+1.13 ppHealth Care Services0.87%+0.41 ppHealth Care Distributors0.36%+0.19 ppHealth Care Facilities0.26%+0.13 ppHealth Care Supplies0.24%+0.10 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.24%
Industry change · 12M
+0.10 pp
Health Care Supplies · contribution
+0.102 pp
Company participation
33%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 |
|---|---|---|---|---|---|---|---|
| West Pharmaceutical Services → WST | United States | $30.5bn | 0.103% | -0.009 pp | +0.062 pp | +46.0% | No |
| Align Technology → ALGN | United States | $34.4bn | 0.116% | -0.050 pp | +0.032 pp | -19.5% | No |
| Cooper Companies (The) → COO | United States | $5.1bn | 0.017% | +0.001 pp | +0.008 pp | +8.7% | 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.