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
Managed Health Care2.23%-0.48 ppPharmaceuticals5.26%-0.36 ppLife Sciences Tools & Services1.70%-0.33 ppHealth Care Services0.72%-0.26 ppBiotechnology2.53%-0.12 ppHealth Care Supplies0.18%+0.04 ppHealth Care Equipment2.91%-0.03 ppHealth Care Facilities0.22%+0.02 ppHealth Care Distributors0.42%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.23%
Industry change · 12M
-0.48 pp
Managed Health Care · contribution
-0.475 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 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 |
|---|---|---|---|---|---|---|---|
| UnitedHealth Group → UNH | United States | $467.0bn | 1.560% | +0.525 pp | -0.297 pp | +1.3% | Yes |
| Elevance Health → ELV | United States | $102.6bn | 0.343% | +0.099 pp | -0.086 pp | -3.0% | Yes |
| Centene Corporation → CNC | United States | $37.3bn | 0.125% | +0.039 pp | -0.053 pp | -11.5% | Yes |
| Humana → HUM | United States | $60.3bn | 0.201% | +0.072 pp | -0.040 pp | +1.0% | 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.