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
Pharmaceuticals5.24%+1.87 ppHealth Care Equipment3.42%+1.56 ppLife Sciences Tools & Services1.79%+0.84 ppBiotechnology2.32%+0.57 ppHealth Care Services0.94%+0.55 ppManaged Health Care1.70%+0.46 ppHealth Care Distributors0.35%+0.12 ppHealth Care Facilities0.22%+0.06 ppHealth Care Supplies0.10%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
1.70%
Industry change · 12M
+0.46 pp
Managed Health Care · contribution
+0.460 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2019 · 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 | $205.9bn | 1.094% | -0.156 pp | +0.278 pp | -17.0% | No |
| Elevance Health → ELV | United States | $61.4bn | 0.326% | -0.065 pp | +0.099 pp | -11.4% | No |
| Centene Corporation → CNC | United States | $17.9bn | 0.095% | -0.022 pp | +0.048 pp | -40.2% | No |
| Humana → HUM | United States | $34.5bn | 0.183% | -0.010 pp | +0.035 pp | -23.9% | 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.