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
Pharmaceuticals5.11%-0.44 ppLife Sciences Tools & Services1.52%-0.39 ppManaged Health Care2.39%-0.34 ppBiotechnology2.47%-0.26 ppHealth Care Services0.74%-0.19 ppHealth Care Equipment2.79%-0.11 ppHealth Care Distributors0.44%+0.02 ppHealth Care Facilities0.21%-0.02 ppHealth Care Supplies0.14%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.39%
Industry change · 12M
-0.34 pp
Managed Health Care · contribution
-0.336 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 2023 · 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 | $496.1bn | 1.687% | +0.659 pp | -0.156 pp | -2.1% | Yes |
| Elevance Health → ELV | United States | $105.8bn | 0.360% | +0.117 pp | -0.104 pp | -16.7% | Yes |
| Centene Corporation → CNC | United States | $36.8bn | 0.125% | +0.045 pp | -0.046 pp | -19.0% | Yes |
| Humana → HUM | United States | $64.9bn | 0.221% | +0.096 pp | -0.030 pp | -5.5% | 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.