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
Health Care Equipment1.80%-0.36 ppPharmaceuticals3.22%-0.20 ppManaged Health Care1.32%-0.15 ppLife Sciences Tools & Services1.07%-0.13 ppHealth Care Services0.40%-0.10 ppHealth Care Supplies0.10%-0.03 ppBiotechnology1.65%+0.03 ppHealth Care Technology0.02%+0.02 ppHealth Care Distributors0.29%+0.01 ppHealth Care Facilities0.17%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.40%
Industry change · 12M
-0.10 pp
Health Care Services · contribution
-0.098 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2024 · 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 | $75.7bn | 0.136% | -0.111 pp | -0.073 pp | -16.1% | No |
| Cigna → CI | United States | $99.0bn | 0.178% | -0.125 pp | -0.013 pp | +20.2% | No |
| Labcorp → LH | United States | $18.2bn | 0.033% | -0.017 pp | -0.009 pp | +2.1% | No |
| Quest Diagnostics → DGX | United States | $15.8bn | 0.028% | -0.016 pp | -0.005 pp | +7.6% | No |
| DaVita → DVA | United States | $12.0bn | 0.021% | -0.014 pp | +0.001 pp | +34.0% | 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.