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
Health Care Equipment3.11%+0.29 ppPharmaceuticals5.77%+0.27 ppBiotechnology3.12%-0.26 ppManaged Health Care2.13%+0.18 ppLife Sciences Tools & Services1.64%+0.12 ppHealth Care Distributors0.40%-0.11 ppHealth Care Services0.63%-0.07 ppHealth Care Facilities0.25%+0.05 ppHealth Care Supplies0.19%+0.05 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.13%
Industry change · 12M
+0.18 pp
Managed Health Care · contribution
+0.179 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 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 | $243.3bn | 1.419% | +0.014 pp | +0.111 pp | +7.7% | Yes |
| Centene Corporation → CNC | United States | $13.4bn | 0.078% | +0.018 pp | +0.025 pp | +21.5% | Yes |
| Humana → HUM | United States | $43.3bn | 0.252% | +0.003 pp | +0.023 pp | +11.9% | Yes |
| Elevance Health → ELV | United States | $65.8bn | 0.384% | +0.014 pp | +0.021 pp | +2.7% | 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.