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
Pharmaceuticals5.82%+0.98 ppBiotechnology2.90%+0.57 ppManaged Health Care2.63%+0.41 ppHealth Care Equipment3.06%-0.27 ppLife Sciences Tools & Services2.05%-0.25 ppHealth Care Supplies0.14%-0.16 ppHealth Care Distributors0.43%+0.14 ppHealth Care Services0.96%+0.09 ppHealth Care Facilities0.24%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.63%
Industry change · 12M
+0.41 pp
Managed Health Care · contribution
+0.411 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 2022 · 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 | $495.4bn | 1.788% | -0.069 pp | +0.273 pp | +6.9% | Yes |
| Elevance Health → ELV | United States | $122.5bn | 0.442% | +0.014 pp | +0.082 pp | +11.8% | Yes |
| Humana → HUM | United States | $64.8bn | 0.234% | -0.007 pp | +0.043 pp | +11.2% | Yes |
| Centene Corporation → CNC | United States | $46.4bn | 0.168% | -0.010 pp | +0.014 pp | -0.5% | 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.