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
Biotechnology3.08%-0.30 ppHealth Care Equipment3.07%+0.24 ppManaged Health Care2.06%+0.10 ppPharmaceuticals5.41%-0.09 ppHealth Care Distributors0.43%-0.08 ppHealth Care Services0.65%-0.06 ppHealth Care Supplies0.18%+0.04 ppLife Sciences Tools & Services1.54%+0.03 ppHealth Care Facilities0.22%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.06%
Industry change · 12M
+0.10 pp
Managed Health Care · contribution
+0.103 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 | $232.1bn | 1.408% | +0.097 pp | +0.099 pp | +2.3% | Yes |
| Elevance Health → ELV | United States | $56.5bn | 0.343% | -0.018 pp | -0.020 pp | -10.4% | No |
| Humana → HUM | United States | $40.1bn | 0.243% | +0.019 pp | +0.013 pp | +3.4% | Yes |
| Centene Corporation → CNC | United States | $10.5bn | 0.063% | +0.011 pp | +0.011 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.