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
Pharmaceuticals5.35%+2.06 ppHealth Care Equipment3.55%+1.75 ppLife Sciences Tools & Services1.79%+0.86 ppManaged Health Care1.88%+0.63 ppBiotechnology2.36%+0.60 ppHealth Care Services0.95%+0.57 ppHealth Care Distributors0.35%+0.12 ppHealth Care Facilities0.22%+0.07 ppHealth Care Supplies0.10%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Managed Health Care
Managed Health Care · weight
1.88%
Industry change · 12M
+0.63 pp
Managed Health Care · contribution
+0.630 pp
Company participation
25%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 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 | $221.8bn | 1.206% | -0.132 pp | +0.372 pp | -11.5% | No |
| Elevance Health → ELV | United States | $66.9bn | 0.364% | -0.053 pp | +0.142 pp | -0.1% | No |
| Humana → HUM | United States | $38.3bn | 0.208% | +0.016 pp | +0.060 pp | -14.4% | Yes |
| Centene Corporation → CNC | United States | $19.3bn | 0.105% | -0.034 pp | +0.056 pp | -36.3% | 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.