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 Equipment1.80%-0.36 ppPharmaceuticals3.22%-0.20 ppManaged Health Care1.32%-0.15 ppLife Sciences Tools & Services1.07%-0.13 ppHealth Care Services0.40%-0.10 ppHealth Care Supplies0.10%-0.03 ppBiotechnology1.65%+0.03 ppHealth Care Technology0.02%+0.02 ppHealth Care Distributors0.29%+0.01 ppHealth Care Facilities0.17%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.10%
Industry change · 12M
-0.03 pp
Health Care Supplies · contribution
-0.028 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 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 | $17.5bn | 0.031% | -0.030 pp | -0.032 pp | -38.6% | No |
| Cooper Companies (The) → COO | United States | $18.6bn | 0.033% | -0.018 pp | +0.023 pp | -4.6% | No |
| West Pharmaceutical Services → WST | United States | $22.2bn | 0.040% | -0.036 pp | -0.019 pp | -16.6% | 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.