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
Pharmaceuticals5.23%+1.57 ppHealth Care Equipment3.30%+1.42 ppBiotechnology2.62%+0.86 ppLife Sciences Tools & Services1.76%+0.78 ppManaged Health Care2.06%+0.71 ppHealth Care Services1.06%+0.67 ppHealth Care Distributors0.35%+0.12 ppHealth Care Facilities0.24%+0.07 ppHealth Care Supplies0.13%+0.06 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.06%
Industry change · 12M
+0.71 pp
Managed Health Care · contribution
+0.711 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 | $265.2bn | 1.336% | +0.130 pp | +0.437 pp | +0.8% | Yes |
| Elevance Health → ELV | United States | $73.2bn | 0.369% | +0.005 pp | +0.119 pp | +0.6% | Yes |
| Centene Corporation → CNC | United States | $25.0bn | 0.126% | +0.021 pp | +0.078 pp | -15.0% | Yes |
| Humana → HUM | United States | $45.2bn | 0.228% | +0.020 pp | +0.077 pp | +4.4% | 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.