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
Pharmaceuticals4.61%+4.60 ppHealth Care Equipment3.14%+3.13 ppManaged Health Care2.10%+2.10 ppBiotechnology2.08%+2.07 ppLife Sciences Tools & Services2.00%+2.00 ppHealth Care Services0.92%+0.91 ppHealth Care Distributors0.29%+0.29 ppHealth Care Supplies0.28%+0.28 ppHealth Care Facilities0.25%+0.25 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.10%
Industry change · 12M
+2.10 pp
Managed Health Care · contribution
+2.095 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 | $388.7bn | 1.393% | +0.763 pp | +1.391 pp | +37.2% | Yes |
| Elevance Health → ELV | United States | $97.5bn | 0.349% | +0.201 pp | +0.349 pp | +37.2% | Yes |
| Humana → HUM | United States | $56.5bn | 0.202% | +0.105 pp | +0.202 pp | +7.3% | Yes |
| Centene Corporation → CNC | United States | $42.9bn | 0.154% | +0.086 pp | +0.153 pp | +11.1% | 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.