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
Biotechnology2.27%-0.85 ppPharmaceuticals5.25%-0.53 ppHealth Care Services0.93%+0.30 ppHealth Care Equipment3.39%+0.28 ppManaged Health Care1.99%-0.14 ppLife Sciences Tools & Services1.75%+0.11 ppHealth Care Supplies0.11%-0.07 ppHealth Care Distributors0.36%-0.03 ppHealth Care Facilities0.24%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
1.99%
Industry change · 12M
-0.14 pp
Managed Health Care · contribution
-0.145 pp
Company participation
25%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2019 · 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 | $236.6bn | 1.259% | +0.013 pp | -0.160 pp | -0.2% | No |
| Humana → HUM | United States | $40.1bn | 0.213% | +0.020 pp | -0.039 pp | -4.8% | Yes |
| Centene Corporation → CNC | United States | $21.5bn | 0.115% | -0.004 pp | +0.037 pp | -20.1% | No |
| Elevance Health → ELV | United States | $75.4bn | 0.401% | +0.024 pp | +0.017 pp | +17.7% | 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.