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
Pharmaceuticals4.74%+4.73 ppHealth Care Equipment3.09%+3.08 ppBiotechnology2.57%+2.56 ppLife Sciences Tools & Services2.27%+2.27 ppManaged Health Care1.92%+1.91 ppHealth Care Services0.81%+0.81 ppHealth Care Supplies0.32%+0.32 ppHealth Care Distributors0.28%+0.28 ppHealth Care Facilities0.27%+0.27 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
1.92%
Industry change · 12M
+1.91 pp
Managed Health Care · contribution
+1.913 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 2021 · 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 | $392.5bn | 1.313% | -0.080 pp | +1.311 pp | +35.2% | Yes |
| Elevance Health → ELV | United States | $91.5bn | 0.306% | -0.043 pp | +0.305 pp | +35.0% | Yes |
| Humana → HUM | United States | $52.1bn | 0.174% | -0.028 pp | +0.174 pp | -1.7% | No |
| Centene Corporation → CNC | United States | $36.7bn | 0.123% | -0.031 pp | +0.123 pp | +2.7% | 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.