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 Equipment3.10%+0.28 ppBiotechnology3.11%-0.27 ppManaged Health Care2.11%+0.16 ppHealth Care Distributors0.42%-0.09 ppHealth Care Services0.66%-0.05 ppHealth Care Supplies0.18%+0.05 ppLife Sciences Tools & Services1.55%+0.03 ppHealth Care Facilities0.22%+0.01 ppPharmaceuticals5.50%+0.00 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.11%
Industry change · 12M
+0.16 pp
Managed Health Care · contribution
+0.160 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 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 | $235.8bn | 1.430% | +0.160 pp | +0.122 pp | +4.3% | Yes |
| Humana → HUM | United States | $41.0bn | 0.249% | +0.022 pp | +0.019 pp | +6.0% | Yes |
| Centene Corporation → CNC | United States | $11.0bn | 0.067% | +0.010 pp | +0.014 pp | +14.9% | Yes |
| Elevance Health → ELV | United States | $60.7bn | 0.369% | +0.024 pp | +0.006 pp | -3.3% | 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.