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
Pharmaceuticals2.37%+2.37 ppHealth Care Equipment1.67%+1.66 ppBiotechnology1.11%+1.10 ppLife Sciences Tools & Services0.99%+0.99 ppManaged Health Care0.94%+0.94 ppHealth Care Services0.42%+0.42 ppHealth Care Distributors0.14%+0.14 ppHealth Care Supplies0.14%+0.14 ppHealth Care Facilities0.12%+0.12 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
0.94%
Industry change · 12M
+0.94 pp
Managed Health Care · contribution
+0.943 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 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 | $315.2bn | 0.630% | -0.725 pp | +0.629 pp | +32.4% | No |
| Elevance Health → ELV | United States | $74.3bn | 0.148% | -0.181 pp | +0.148 pp | +19.5% | No |
| Humana → HUM | United States | $48.9bn | 0.098% | -0.127 pp | +0.098 pp | +19.6% | No |
| Centene Corporation → CNC | United States | $34.0bn | 0.068% | -0.084 pp | +0.068 pp | +10.4% | 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.