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
Pharmaceuticals4.77%-0.49 ppLife Sciences Tools & Services1.42%-0.35 ppHealth Care Equipment2.61%-0.35 ppManaged Health Care1.83%-0.20 ppBiotechnology2.26%-0.15 ppHealth Care Services0.54%-0.13 ppHealth Care Supplies0.15%-0.05 ppHealth Care Technology0.03%+0.03 ppHealth Care Distributors0.38%-0.01 ppHealth Care Facilities0.25%+0.01 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.15%
Industry change · 12M
-0.05 pp
Health Care Supplies · contribution
-0.052 pp
Company participation
33%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 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 |
|---|---|---|---|---|---|---|---|
| Align Technology → ALGN | United States | $17.7bn | 0.043% | +0.006 pp | -0.047 pp | -35.9% | No |
| West Pharmaceutical Services → WST | United States | $22.8bn | 0.055% | +0.009 pp | -0.041 pp | -22.7% | No |
| Cooper Companies (The) → COO | United States | $21.1bn | 0.051% | +0.015 pp | +0.036 pp | +14.3% | 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.