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 Care2.03%-0.53 ppHealth Care Services0.66%-0.25 ppPharmaceuticals5.26%+0.22 ppLife Sciences Tools & Services1.77%-0.21 ppHealth Care Equipment2.95%+0.09 ppHealth Care Supplies0.20%+0.04 ppHealth Care Facilities0.24%+0.04 ppBiotechnology2.41%+0.02 ppHealth Care Distributors0.39%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.66%
Industry change · 12M
-0.25 pp
Health Care Services · contribution
-0.251 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 2023 · 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 | $83.7bn | 0.267% | +0.051 pp | -0.194 pp | -31.6% | Yes |
| Cigna → CI | United States | $81.8bn | 0.261% | +0.080 pp | -0.049 pp | -0.9% | Yes |
| Quest Diagnostics → DGX | United States | $14.8bn | 0.047% | +0.010 pp | -0.005 pp | +7.1% | Yes |
| Labcorp → LH | United States | $18.4bn | 0.059% | +0.019 pp | -0.004 pp | +8.9% | Yes |
| DaVita → DVA | United States | $9.4bn | 0.030% | +0.009 pp | +0.002 pp | +20.1% | 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.