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 Care2.56%+0.64 ppPharmaceuticals5.04%+0.30 ppLife Sciences Tools & Services1.99%-0.29 ppHealth Care Equipment2.86%-0.23 ppBiotechnology2.39%-0.17 ppHealth Care Supplies0.16%-0.16 ppHealth Care Distributors0.40%+0.13 ppHealth Care Services0.91%+0.10 ppHealth Care Facilities0.20%-0.07 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.91%
Industry change · 12M
+0.10 pp
Health Care Services · contribution
+0.099 pp
Company participation
40%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 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 |
|---|---|---|---|---|---|---|---|
| CVS Health → CVS | United States | $128.9bn | 0.461% | +0.004 pp | +0.080 pp | +16.2% | Yes |
| Cigna → CI | United States | $86.5bn | 0.310% | +0.003 pp | +0.069 pp | +36.5% | Yes |
| Labcorp → LH | United States | $17.5bn | 0.063% | -0.008 pp | -0.021 pp | -25.3% | No |
| DaVita → DVA | United States | $7.8bn | 0.028% | -0.005 pp | -0.018 pp | -34.8% | No |
| Quest Diagnostics → DGX | United States | $14.6bn | 0.052% | -0.007 pp | -0.010 pp | -16.5% | 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.