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
Health Care Equipment3.04%-0.28 ppBiotechnology2.64%+0.26 ppPharmaceuticals5.02%+0.22 ppLife Sciences Tools & Services1.94%-0.10 ppHealth Care Services0.83%-0.08 ppHealth Care Supplies0.18%-0.08 ppHealth Care Distributors0.38%+0.04 ppHealth Care Facilities0.24%-0.03 ppManaged Health Care2.30%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
2.30%
Industry change · 12M
+0.01 pp
Managed Health Care · contribution
+0.014 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 2023 · 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 |
|---|---|---|---|---|---|---|---|
| Centene Corporation → CNC | United States | $37.7bn | 0.133% | -0.035 pp | -0.034 pp | -17.2% | No |
| Humana → HUM | United States | $61.9bn | 0.217% | -0.019 pp | +0.027 pp | +14.7% | No |
| Elevance Health → ELV | United States | $111.5bn | 0.392% | -0.040 pp | +0.014 pp | +5.0% | No |
| UnitedHealth Group → UNH | United States | $444.0bn | 1.561% | -0.176 pp | +0.008 pp | +1.3% | 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.