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
Pharmaceuticals4.62%+4.62 ppHealth Care Equipment3.09%+3.08 ppBiotechnology2.51%+2.51 ppLife Sciences Tools & Services2.28%+2.27 ppManaged Health Care1.92%+1.91 ppHealth Care Services0.82%+0.82 ppHealth Care Supplies0.31%+0.31 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
+1.914 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 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 | $368.4bn | 1.294% | -0.041 pp | +1.292 pp | +27.1% | No |
| Elevance Health → ELV | United States | $90.9bn | 0.319% | -0.011 pp | +0.319 pp | +40.5% | No |
| Humana → HUM | United States | $50.0bn | 0.176% | -0.026 pp | +0.175 pp | -5.4% | No |
| Centene Corporation → CNC | United States | $36.3bn | 0.128% | -0.022 pp | +0.127 pp | +6.8% | 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.