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
Pharmaceuticals4.64%-0.39 ppBiotechnology2.35%-0.08 ppHealth Care Facilities0.27%+0.07 ppLife Sciences Tools & Services2.30%+0.06 ppHealth Care Equipment3.44%-0.04 ppHealth Care Distributors0.27%-0.04 ppManaged Health Care2.14%+0.03 ppHealth Care Services0.81%-0.03 ppHealth Care Supplies0.29%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.14%
Industry change · 12M
+0.03 pp
Managed Health Care · contribution
+0.034 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 2021 · 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 | $434.2bn | 1.450% | +0.116 pp | +0.077 pp | +53.1% | Yes |
| Humana → HUM | United States | $59.5bn | 0.199% | +0.011 pp | -0.051 pp | +16.8% | Yes |
| Elevance Health → ELV | United States | $105.6bn | 0.353% | +0.032 pp | +0.032 pp | +61.5% | Yes |
| Centene Corporation → CNC | United States | $41.6bn | 0.139% | +0.002 pp | -0.023 pp | +20.5% | Yes |
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.