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
Biotechnology3.08%-0.30 ppHealth Care Equipment2.98%+0.15 ppManaged Health Care2.08%+0.13 ppPharmaceuticals5.60%+0.10 ppLife Sciences Tools & Services1.54%+0.03 ppHealth Care Services0.68%-0.02 ppHealth Care Distributors0.50%-0.01 ppHealth Care Supplies0.14%+0.00 ppHealth Care Facilities0.21%+0.00 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.08%
Industry change · 12M
+0.13 pp
Managed Health Care · contribution
+0.130 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 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 | $228.8bn | 1.406% | +0.097 pp | +0.097 pp | +0.2% | Yes |
| Humana → HUM | United States | $40.5bn | 0.249% | +0.019 pp | +0.019 pp | +4.6% | Yes |
| Elevance Health → ELV | United States | $60.2bn | 0.370% | +0.007 pp | +0.007 pp | -4.5% | Yes |
| Centene Corporation → CNC | United States | $9.7bn | 0.060% | +0.007 pp | +0.007 pp | +1.2% | 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.