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
Pharmaceuticals3.66%-1.84 ppBiotechnology1.77%-1.61 ppHealth Care Equipment1.89%-0.94 ppManaged Health Care1.28%-0.67 ppLife Sciences Tools & Services0.97%-0.54 ppHealth Care Services0.35%-0.36 ppHealth Care Distributors0.21%-0.29 ppHealth Care Supplies0.07%-0.07 ppHealth Care Facilities0.15%-0.05 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
1.28%
Industry change · 12M
-0.67 pp
Managed Health Care · contribution
-0.672 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 2018 · 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 | $239.7bn | 0.857% | +0.041 pp | -0.452 pp | +6.6% | No |
| Elevance Health → ELV | United States | $67.9bn | 0.243% | +0.016 pp | -0.120 pp | +7.2% | No |
| Humana → HUM | United States | $39.3bn | 0.141% | -0.008 pp | -0.089 pp | +2.3% | No |
| Centene Corporation → CNC | United States | $11.8bn | 0.042% | -0.005 pp | -0.010 pp | +7.5% | 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.