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 Care0.70%-0.62 ppHealth Care Equipment2.38%+0.59 ppLife Sciences Tools & Services0.93%-0.14 ppBiotechnology1.78%+0.14 ppPharmaceuticals3.35%+0.13 ppHealth Care Distributors0.40%+0.11 ppHealth Care Services0.42%+0.03 ppHealth Care Supplies0.09%-0.02 ppHealth Care Facilities0.18%+0.01 ppHealth Care Technology0.03%+0.01 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.42%
Industry change · 12M
+0.03 pp
Health Care Services · contribution
+0.029 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2025 · 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 | $78.8bn | 0.166% | -0.036 pp | +0.030 pp | +7.7% | No |
| Cigna → CI | United States | $71.4bn | 0.151% | -0.073 pp | -0.027 pp | -21.9% | No |
| Labcorp → LH | United States | $21.8bn | 0.046% | -0.003 pp | +0.013 pp | +22.2% | No |
| Quest Diagnostics → DGX | United States | $18.7bn | 0.039% | -0.008 pp | +0.011 pp | +19.9% | No |
| DaVita → DVA | United States | $10.6bn | 0.022% | -0.005 pp | +0.001 pp | +2.7% | 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.