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
Pharmaceuticals4.48%-1.87 ppBiotechnology2.08%-1.01 ppManaged Health Care2.04%-0.41 ppHealth Care Equipment3.24%-0.35 ppHealth Care Services0.87%-0.20 ppHealth Care Supplies0.28%+0.16 ppLife Sciences Tools & Services1.94%-0.07 ppHealth Care Distributors0.30%-0.07 ppHealth Care Facilities0.24%+0.03 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.04%
Industry change · 12M
-0.41 pp
Managed Health Care · contribution
-0.406 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 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 | $377.0bn | 1.366% | +0.608 pp | -0.186 pp | +38.5% | Yes |
| Centene Corporation → CNC | United States | $36.0bn | 0.130% | +0.047 pp | -0.085 pp | -7.3% | Yes |
| Humana → HUM | United States | $57.4bn | 0.208% | +0.087 pp | -0.074 pp | +17.4% | Yes |
| Elevance Health → ELV | United States | $92.9bn | 0.337% | +0.160 pp | -0.059 pp | +36.9% | 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.