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%+0.91 ppManaged Health Care2.73%+0.59 ppHealth Care Equipment2.90%-0.54 ppLife Sciences Tools & Services1.91%-0.39 ppBiotechnology2.73%+0.38 ppHealth Care Supplies0.13%-0.16 ppHealth Care Distributors0.42%+0.15 ppHealth Care Services0.93%+0.12 ppHealth Care Facilities0.22%-0.05 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.93%
Industry change · 12M
+0.12 pp
Health Care Services · contribution
+0.123 pp
Company participation
40%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 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 | $98.6bn | 0.350% | +0.050 pp | +0.107 pp | +54.0% | Yes |
| CVS Health → CVS | United States | $124.3bn | 0.441% | +0.010 pp | +0.048 pp | +8.5% | No |
| Labcorp → LH | United States | $17.2bn | 0.061% | -0.011 pp | -0.018 pp | -22.3% | No |
| DaVita → DVA | United States | $6.6bn | 0.023% | -0.004 pp | -0.012 pp | -29.3% | No |
| Quest Diagnostics → DGX | United States | $16.4bn | 0.058% | +0.003 pp | -0.002 pp | -0.2% | 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.