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
Health Care Equipment1.41%-1.27 ppPharmaceuticals3.06%-1.12 ppManaged Health Care0.51%-1.01 ppBiotechnology1.45%-0.69 ppLife Sciences Tools & Services0.65%-0.44 ppHealth Care Services0.31%-0.22 ppHealth Care Distributors0.33%-0.10 ppHealth Care Facilities0.15%-0.05 ppHealth Care Supplies0.06%-0.04 ppHealth Care Technology0.02%-0.01 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
0.51%
Industry change · 12M
-1.01 pp
Managed Health Care · contribution
-1.014 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 2026 · 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 | $245.6bn | 0.358% | -0.228 pp | -0.780 pp | -46.9% | No |
| Elevance Health → ELV | United States | $64.6bn | 0.094% | -0.059 pp | -0.141 pp | -31.3% | No |
| Centene Corporation → CNC | United States | $16.1bn | 0.023% | -0.016 pp | -0.048 pp | -46.1% | No |
| Humana → HUM | United States | $20.9bn | 0.030% | -0.030 pp | -0.045 pp | -33.4% | 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.