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
Pharmaceuticals3.66%-1.84 ppBiotechnology1.76%-1.62 ppHealth Care Equipment1.88%-0.95 ppManaged Health Care1.35%-0.61 ppLife Sciences Tools & Services0.98%-0.53 ppHealth Care Services0.39%-0.32 ppHealth Care Distributors0.23%-0.28 ppHealth Care Supplies0.07%-0.06 ppHealth Care Facilities0.16%-0.04 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
1.35%
Industry change · 12M
-0.61 pp
Managed Health Care · contribution
-0.607 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 | $270.7bn | 0.899% | +0.065 pp | -0.409 pp | +20.4% | No |
| Elevance Health → ELV | United States | $75.0bn | 0.249% | +0.027 pp | -0.114 pp | +18.1% | No |
| Humana → HUM | United States | $45.2bn | 0.150% | +0.002 pp | -0.079 pp | +17.5% | No |
| Centene Corporation → CNC | United States | $14.6bn | 0.049% | +0.000 pp | -0.004 pp | +32.6% | 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.