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
Pharmaceuticals3.37%-2.13 ppBiotechnology1.75%-1.63 ppHealth Care Equipment1.86%-0.96 ppManaged Health Care1.24%-0.72 ppLife Sciences Tools & Services0.95%-0.56 ppHealth Care Services0.39%-0.32 ppHealth Care Distributors0.23%-0.28 ppHealth Care Facilities0.15%-0.05 ppHealth Care Supplies0.11%-0.03 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
1.24%
Industry change · 12M
-0.72 pp
Managed Health Care · contribution
-0.715 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2018 · 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 | $256.1bn | 0.816% | -0.615 pp | -0.493 pp | +13.5% | No |
| Elevance Health → ELV | United States | $71.2bn | 0.227% | -0.142 pp | -0.136 pp | +11.6% | No |
| Humana → HUM | United States | $46.6bn | 0.149% | -0.100 pp | -0.081 pp | +20.7% | No |
| Centene Corporation → CNC | United States | $14.9bn | 0.047% | -0.019 pp | -0.005 pp | +35.0% | 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.