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
Health Care Equipment1.52%-1.15 ppPharmaceuticals3.09%-1.07 ppManaged Health Care0.52%-0.79 ppBiotechnology1.47%-0.57 ppLife Sciences Tools & Services0.66%-0.42 ppHealth Care Services0.32%-0.17 ppHealth Care Supplies0.07%-0.04 ppHealth Care Distributors0.35%-0.03 ppHealth Care Technology0.02%-0.01 ppHealth Care Facilities0.16%-0.01 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.07%
Industry change · 12M
-0.04 pp
Health Care Supplies · contribution
-0.042 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 2026 · 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 |
|---|---|---|---|---|---|---|---|
| Cooper Companies (The) → COO | United States | $16.4bn | 0.023% | -0.008 pp | -0.018 pp | -7.4% | No |
| West Pharmaceutical Services → WST | United States | $18.3bn | 0.025% | -0.014 pp | -0.012 pp | +9.9% | No |
| Align Technology → ALGN | United States | $13.6bn | 0.019% | -0.002 pp | -0.012 pp | +1.6% | 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.