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
Pharmaceuticals4.87%+1.93 ppHealth Care Equipment3.17%+1.20 ppManaged Health Care2.18%+1.04 ppBiotechnology2.33%+0.96 ppLife Sciences Tools & Services2.10%+0.84 ppHealth Care Services0.90%+0.37 ppHealth Care Distributors0.31%+0.13 ppHealth Care Facilities0.25%+0.12 ppHealth Care Supplies0.25%+0.08 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.18%
Industry change · 12M
+1.04 pp
Managed Health Care · contribution
+1.039 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 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 | $445.1bn | 1.497% | +0.047 pp | +0.739 pp | +43.7% | Yes |
| Elevance Health → ELV | United States | $107.0bn | 0.360% | +0.007 pp | +0.183 pp | +50.3% | Yes |
| Centene Corporation → CNC | United States | $45.4bn | 0.153% | +0.014 pp | +0.069 pp | +29.0% | Yes |
| Humana → HUM | United States | $50.4bn | 0.170% | -0.029 pp | +0.048 pp | +3.1% | 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.