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
Pharmaceuticals3.88%-1.03 ppBiotechnology1.85%-0.66 ppManaged Health Care1.46%-0.55 ppLife Sciences Tools & Services1.21%-0.43 ppHealth Care Equipment2.62%-0.39 ppHealth Care Services0.46%-0.22 ppHealth Care Distributors0.37%-0.08 ppHealth Care Facilities0.19%-0.06 ppHealth Care Technology0.03%+0.03 ppHealth Care Supplies0.13%-0.02 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
1.46%
Industry change · 12M
-0.55 pp
Managed Health Care · contribution
-0.545 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 2025 · 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 | $499.2bn | 1.110% | -0.115 pp | -0.297 pp | +7.7% | No |
| Elevance Health → ELV | United States | $91.8bn | 0.204% | -0.017 pp | -0.141 pp | -18.7% | No |
| Humana → HUM | United States | $35.3bn | 0.079% | +0.006 pp | -0.060 pp | -21.6% | No |
| Centene Corporation → CNC | United States | $32.3bn | 0.072% | -0.002 pp | -0.048 pp | -15.0% | 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.