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
Pharmaceuticals5.04%+2.63 ppHealth Care Equipment3.25%+1.62 ppBiotechnology2.51%+1.38 ppManaged Health Care2.36%+1.33 ppLife Sciences Tools & Services2.10%+1.13 ppHealth Care Services0.87%+0.41 ppHealth Care Distributors0.36%+0.19 ppHealth Care Facilities0.26%+0.13 ppHealth Care Supplies0.24%+0.10 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.36%
Industry change · 12M
+1.33 pp
Managed Health Care · contribution
+1.327 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 | $479.8bn | 1.615% | +0.100 pp | +0.927 pp | +38.9% | Yes |
| Elevance Health → ELV | United States | $118.5bn | 0.399% | +0.039 pp | +0.227 pp | +38.4% | Yes |
| Centene Corporation → CNC | United States | $49.1bn | 0.165% | +0.011 pp | +0.092 pp | +31.7% | Yes |
| Humana → HUM | United States | $55.1bn | 0.185% | -0.006 pp | +0.080 pp | +4.5% | 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.