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 Care0.84%-0.75 ppPharmaceuticals3.52%-0.71 ppBiotechnology1.80%-0.33 ppHealth Care Equipment2.20%-0.32 ppLife Sciences Tools & Services1.00%-0.24 ppHealth Care Distributors0.43%+0.09 ppHealth Care Services0.42%-0.07 ppHealth Care Supplies0.09%-0.05 ppHealth Care Facilities0.21%-0.01 ppHealth Care Technology0.02%-0.01 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
0.84%
Industry change · 12M
-0.75 pp
Managed Health Care · contribution
-0.749 pp
Company participation
25%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 2025 · 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 | $309.4bn | 0.606% | +0.129 pp | -0.619 pp | -38.2% | Yes |
| Elevance Health → ELV | United States | $70.5bn | 0.138% | +0.004 pp | -0.083 pp | -20.4% | No |
| Centene Corporation → CNC | United States | $17.4bn | 0.034% | +0.007 pp | -0.040 pp | -43.2% | No |
| Humana → HUM | United States | $33.5bn | 0.066% | +0.002 pp | -0.007 pp | +9.4% | 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.