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
Pharmaceuticals3.39%-1.02 ppManaged Health Care0.87%-0.85 ppLife Sciences Tools & Services0.91%-0.49 ppBiotechnology1.80%-0.32 ppHealth Care Equipment2.26%-0.27 ppHealth Care Services0.45%-0.07 ppHealth Care Distributors0.40%+0.07 ppHealth Care Supplies0.08%-0.06 ppHealth Care Facilities0.20%-0.04 ppHealth Care Technology0.03%-0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
0.87%
Industry change · 12M
-0.85 pp
Managed Health Care · contribution
-0.849 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 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 | $312.7bn | 0.626% | +0.016 pp | -0.631 pp | -39.7% | No |
| Elevance Health → ELV | United States | $72.8bn | 0.146% | -0.044 pp | -0.135 pp | -36.7% | No |
| Centene Corporation → CNC | United States | $17.5bn | 0.035% | -0.023 pp | -0.057 pp | -52.6% | No |
| Humana → HUM | United States | $31.3bn | 0.063% | -0.001 pp | -0.026 pp | -16.7% | 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.