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
Managed Health Care2.54%+0.56 ppPharmaceuticals5.28%+0.53 ppHealth Care Equipment2.91%-0.33 ppBiotechnology2.41%-0.14 ppHealth Care Supplies0.18%-0.13 ppLife Sciences Tools & Services2.09%-0.11 ppHealth Care Distributors0.37%+0.07 ppHealth Care Facilities0.22%-0.07 ppHealth Care Services0.89%+0.05 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.89%
Industry change · 12M
+0.05 pp
Health Care Services · contribution
+0.055 pp
Company participation
20%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 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 | $125.5bn | 0.431% | -0.025 pp | +0.059 pp | +18.8% | No |
| Cigna → CI | United States | $87.4bn | 0.300% | +0.014 pp | +0.030 pp | +22.3% | Yes |
| DaVita → DVA | United States | $8.0bn | 0.027% | -0.010 pp | -0.016 pp | -30.0% | No |
| Labcorp → LH | United States | $20.9bn | 0.072% | +0.003 pp | -0.013 pp | -11.2% | No |
| Quest Diagnostics → DGX | United States | $15.9bn | 0.055% | -0.002 pp | -0.005 pp | -1.9% | 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.