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
Pharmaceuticals6.06%+1.38 ppManaged Health Care2.75%+0.73 ppBiotechnology2.76%+0.64 ppHealth Care Distributors0.40%+0.11 ppHealth Care Supplies0.17%-0.11 ppHealth Care Equipment3.05%-0.11 ppHealth Care Services0.96%+0.10 ppHealth Care Facilities0.19%-0.05 ppLife Sciences Tools & Services2.10%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.96%
Industry change · 12M
+0.10 pp
Health Care Services · contribution
+0.098 pp
Company participation
80%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2022 · 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 | $121.5bn | 0.473% | +0.025 pp | +0.085 pp | +13.6% | Yes |
| Cigna → CI | United States | $83.6bn | 0.325% | +0.066 pp | +0.038 pp | +13.3% | Yes |
| DaVita → DVA | United States | $7.6bn | 0.029% | -0.007 pp | -0.016 pp | -33.6% | No |
| Labcorp → LH | United States | $18.7bn | 0.073% | +0.001 pp | -0.009 pp | -14.8% | Yes |
| Quest Diagnostics → DGX | United States | $15.6bn | 0.061% | +0.006 pp | -0.000 pp | +2.6% | 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.