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 Health Care Services
Health Care Services · weight
0.82%
Industry change · 12M
+0.82 pp
Health Care Services · contribution
+0.818 pp
Company participation
40%
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 |
|---|---|---|---|---|---|---|---|
| CVS Health → CVS | United States | $112.0bn | 0.393% | +0.005 pp | +0.393 pp | +49.4% | Yes |
| Cigna → CI | United States | $68.1bn | 0.239% | -0.048 pp | +0.239 pp | +19.7% | No |
| Labcorp → LH | United States | $23.3bn | 0.082% | +0.000 pp | +0.082 pp | +49.5% | No |
| Quest Diagnostics → DGX | United States | $17.8bn | 0.062% | +0.001 pp | +0.062 pp | +29.3% | Yes |
| DaVita → DVA | United States | $12.2bn | 0.043% | -0.002 pp | +0.043 pp | +35.7% | 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.