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
Managed Health Care2.01%-0.36 ppLife Sciences Tools & Services1.64%-0.36 ppPharmaceuticals4.92%-0.29 ppHealth Care Services0.67%-0.20 ppBiotechnology2.51%-0.17 ppHealth Care Equipment3.01%+0.07 ppHealth Care Distributors0.44%+0.03 ppHealth Care Facilities0.24%-0.00 ppHealth Care Supplies0.16%+0.00 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.16%
Industry change · 12M
+0.00 pp
Health Care Supplies · contribution
+0.003 pp
Company participation
33%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 2024 · 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 | $27.6bn | 0.082% | +0.002 pp | +0.015 pp | +40.8% | No |
| Align Technology → ALGN | United States | $20.5bn | 0.061% | +0.013 pp | -0.011 pp | -0.9% | No |
| Cooper Companies (The) → COO | United States | $4.6bn | 0.014% | +0.001 pp | -0.001 pp | +6.9% | 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.