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
Pharmaceuticals5.63%+1.00 ppManaged Health Care2.70%+0.79 ppLife Sciences Tools & Services2.03%-0.24 ppHealth Care Supplies0.15%-0.16 ppHealth Care Services0.97%+0.15 ppHealth Care Equipment2.94%-0.15 ppBiotechnology2.65%+0.14 ppHealth Care Distributors0.41%+0.13 ppHealth Care Facilities0.21%-0.07 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.70%
Industry change · 12M
+0.79 pp
Managed Health Care · contribution
+0.788 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2022 · 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 | $472.4bn | 1.856% | -0.018 pp | +0.563 pp | +30.9% | Yes |
| Elevance Health → ELV | United States | $109.0bn | 0.428% | -0.024 pp | +0.109 pp | +23.2% | No |
| Humana → HUM | United States | $61.4bn | 0.241% | +0.011 pp | +0.066 pp | +25.5% | Yes |
| Centene Corporation → CNC | United States | $45.1bn | 0.177% | -0.015 pp | +0.050 pp | +24.9% | 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.