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
Biotechnology2.40%-0.71 ppLife Sciences Tools & Services1.90%+0.35 ppHealth Care Services0.91%+0.25 ppHealth Care Equipment3.33%+0.23 ppManaged Health Care1.95%-0.16 ppPharmaceuticals5.61%+0.11 ppHealth Care Distributors0.37%-0.06 ppHealth Care Supplies0.14%-0.04 ppHealth Care Facilities0.25%+0.03 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
1.95%
Industry change · 12M
-0.16 pp
Managed Health Care · contribution
-0.163 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2019 · 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 | $231.9bn | 1.250% | -0.113 pp | -0.180 pp | +0.9% | Yes |
| Humana → HUM | United States | $35.8bn | 0.193% | -0.014 pp | -0.055 pp | -10.2% | Yes |
| Centene Corporation → CNC | United States | $21.7bn | 0.117% | -0.009 pp | +0.050 pp | -14.9% | Yes |
| Elevance Health → ELV | United States | $72.6bn | 0.391% | -0.032 pp | +0.023 pp | +19.9% | 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.