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 Equipment1.93%-0.40 ppManaged Health Care1.27%-0.23 ppLife Sciences Tools & Services1.02%-0.22 ppPharmaceuticals3.49%-0.22 ppHealth Care Services0.40%-0.10 ppHealth Care Facilities0.16%-0.04 ppHealth Care Supplies0.11%-0.03 ppBiotechnology1.63%-0.02 ppHealth Care Distributors0.29%-0.02 ppHealth Care Technology0.02%+0.02 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
Jun 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 | $74.1bn | 0.139% | -0.139 pp | -0.066 pp | -11.5% | No |
| Cigna → CI | United States | $93.9bn | 0.176% | -0.118 pp | -0.016 pp | +19.9% | No |
| Labcorp → LH | United States | $17.2bn | 0.032% | -0.019 pp | -0.010 pp | -0.5% | No |
| Quest Diagnostics → DGX | United States | $15.2bn | 0.029% | -0.012 pp | -0.008 pp | -0.5% | No |
| DaVita → DVA | United States | $12.2bn | 0.023% | -0.011 pp | +0.002 pp | +37.9% | 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.