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
Life Sciences Tools & Services2.30%+0.26 ppPharmaceuticals4.65%-0.21 ppHealth Care Equipment3.22%-0.14 ppHealth Care Services0.79%-0.11 ppHealth Care Distributors0.27%-0.05 ppBiotechnology2.37%+0.02 ppHealth Care Supplies0.29%+0.02 ppHealth Care Facilities0.24%+0.02 ppManaged Health Care2.07%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.07%
Industry change · 12M
+0.01 pp
Managed Health Care · contribution
+0.008 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 | $418.4bn | 1.414% | +0.101 pp | +0.058 pp | +34.0% | Yes |
| Humana → HUM | United States | $53.9bn | 0.182% | +0.008 pp | -0.043 pp | +5.5% | No |
| Centene Corporation → CNC | United States | $41.7bn | 0.141% | +0.018 pp | -0.011 pp | +15.8% | Yes |
| Elevance Health → ELV | United States | $98.6bn | 0.333% | +0.027 pp | +0.004 pp | +32.0% | 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.