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
Pharmaceuticals4.23%-0.88 ppManaged Health Care1.59%-0.80 ppBiotechnology2.13%-0.34 ppLife Sciences Tools & Services1.24%-0.28 ppHealth Care Equipment2.52%-0.27 ppHealth Care Services0.49%-0.26 ppHealth Care Distributors0.34%-0.10 ppHealth Care Technology0.03%+0.03 ppHealth Care Facilities0.21%+0.01 ppHealth Care Supplies0.14%-0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.14%
Industry change · 12M
-0.00 pp
Health Care Supplies · contribution
-0.004 pp
Company participation
67%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 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 |
|---|---|---|---|---|---|---|---|
| Cooper Companies (The) → COO | United States | $20.8bn | 0.049% | +0.016 pp | +0.036 pp | +34.3% | Yes |
| West Pharmaceutical Services → WST | United States | $22.3bn | 0.052% | +0.013 pp | -0.028 pp | -3.0% | Yes |
| Align Technology → ALGN | United States | $15.3bn | 0.036% | +0.005 pp | -0.012 pp | +11.1% | 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.