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
Biotechnology2.50%-0.59 ppLife Sciences Tools & Services1.81%+0.27 ppHealth Care Services0.93%+0.25 ppHealth Care Equipment3.19%+0.21 ppHealth Care Distributors0.35%-0.15 ppManaged Health Care1.93%-0.15 ppPharmaceuticals5.74%+0.14 ppHealth Care Facilities0.24%+0.04 ppHealth Care Supplies0.16%+0.02 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
1.93%
Industry change · 12M
-0.15 pp
Managed Health Care · contribution
-0.150 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 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 | $223.6bn | 1.246% | +0.389 pp | -0.160 pp | -0.0% | Yes |
| Centene Corporation → CNC | United States | $21.3bn | 0.119% | +0.075 pp | +0.059 pp | -5.0% | Yes |
| Humana → HUM | United States | $34.6bn | 0.193% | +0.053 pp | -0.056 pp | -12.6% | Yes |
| Elevance Health → ELV | United States | $67.7bn | 0.377% | +0.118 pp | +0.007 pp | +12.7% | 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.