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%-0.55 ppPharmaceuticals4.11%+0.28 ppHealth Care Equipment2.25%-0.18 ppLife Sciences Tools & Services1.03%-0.12 ppBiotechnology1.91%+0.12 ppHealth Care Distributors0.44%+0.09 ppHealth Care Supplies0.09%-0.04 ppHealth Care Facilities0.21%+0.04 ppHealth Care Services0.44%+0.02 ppHealth Care Technology0.03%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
0.84%
Industry change · 12M
-0.55 pp
Managed Health Care · contribution
-0.550 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 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 | $299.0bn | 0.586% | -0.040 pp | -0.470 pp | -33.1% | Yes |
| Elevance Health → ELV | United States | $77.9bn | 0.153% | +0.007 pp | -0.041 pp | -3.1% | Yes |
| Centene Corporation → CNC | United States | $20.2bn | 0.040% | +0.005 pp | -0.030 pp | -32.1% | Yes |
| Humana → HUM | United States | $30.8bn | 0.060% | -0.002 pp | -0.009 pp | +2.4% | 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.