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
Pharmaceuticals5.55%+0.89 ppManaged Health Care2.57%+0.50 ppBiotechnology2.81%+0.44 ppHealth Care Equipment2.88%-0.34 ppLife Sciences Tools & Services1.98%-0.32 ppHealth Care Supplies0.12%-0.17 ppHealth Care Services0.94%+0.15 ppHealth Care Distributors0.41%+0.14 ppHealth Care Facilities0.23%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.94%
Industry change · 12M
+0.15 pp
Health Care Services · contribution
+0.153 pp
Company participation
40%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 |
|---|---|---|---|---|---|---|---|
| Cigna → CI | United States | $100.6bn | 0.341% | +0.032 pp | +0.126 pp | +74.5% | Yes |
| CVS Health → CVS | United States | $133.9bn | 0.454% | -0.007 pp | +0.057 pp | +17.0% | No |
| Labcorp → LH | United States | $18.3bn | 0.062% | -0.000 pp | -0.017 pp | -14.9% | No |
| DaVita → DVA | United States | $6.6bn | 0.023% | -0.005 pp | -0.010 pp | -22.0% | No |
| Quest Diagnostics → DGX | United States | $17.3bn | 0.059% | +0.006 pp | -0.003 pp | +4.1% | 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.