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
Pharmaceuticals4.86%-0.69 ppBiotechnology2.29%-0.52 ppLife Sciences Tools & Services1.59%-0.39 ppManaged Health Care2.25%-0.32 ppHealth Care Services0.65%-0.29 ppHealth Care Equipment2.84%-0.04 ppHealth Care Facilities0.21%-0.02 ppHealth Care Supplies0.14%+0.02 ppHealth Care Distributors0.43%+0.02 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.25%
Industry change · 12M
-0.32 pp
Managed Health Care · contribution
-0.318 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 | $511.5bn | 1.595% | +0.188 pp | -0.142 pp | +2.4% | Yes |
| Elevance Health → ELV | United States | $112.7bn | 0.351% | +0.019 pp | -0.081 pp | -8.9% | Yes |
| Humana → HUM | United States | $59.7bn | 0.186% | +0.004 pp | -0.050 pp | -11.2% | Yes |
| Centene Corporation → CNC | United States | $39.4bn | 0.123% | +0.016 pp | -0.045 pp | -15.4% | 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.