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
Pharmaceuticals3.77%-1.83 ppManaged Health Care1.62%-0.88 ppHealth Care Equipment2.30%-0.81 ppBiotechnology1.77%-0.80 ppLife Sciences Tools & Services1.27%-0.79 ppHealth Care Services0.49%-0.43 ppHealth Care Distributors0.29%-0.09 ppHealth Care Supplies0.13%-0.05 ppHealth Care Facilities0.18%-0.04 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.13%
Industry change · 12M
-0.05 pp
Health Care Supplies · contribution
-0.051 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 2023 · 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 | $21.6bn | 0.053% | -0.030 pp | -0.025 pp | +1.8% | No |
| West Pharmaceutical Services → WST | United States | $24.8bn | 0.061% | -0.021 pp | -0.021 pp | +8.1% | No |
| Cooper Companies (The) → COO | United States | $4.6bn | 0.011% | -0.003 pp | -0.004 pp | +5.9% | 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.