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
Pharmaceuticals4.40%-0.86 ppManaged Health Care1.72%-0.51 ppBiotechnology2.12%-0.40 ppHealth Care Equipment2.53%-0.38 ppLife Sciences Tools & Services1.39%-0.31 ppHealth Care Services0.53%-0.19 ppHealth Care Distributors0.34%-0.09 ppHealth Care Supplies0.15%-0.04 ppHealth Care Technology0.03%+0.03 ppHealth Care Facilities0.24%+0.02 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
1.72%
Industry change · 12M
-0.51 pp
Managed Health Care · contribution
-0.510 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2024 · 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 | $539.9bn | 1.257% | +0.378 pp | -0.303 pp | +17.7% | Yes |
| Humana → HUM | United States | $38.1bn | 0.089% | +0.004 pp | -0.113 pp | -34.3% | No |
| Elevance Health → ELV | United States | $120.6bn | 0.281% | +0.045 pp | -0.062 pp | +20.9% | Yes |
| Centene Corporation → CNC | United States | $39.6bn | 0.092% | +0.026 pp | -0.032 pp | +9.3% | 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.