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
Pharmaceuticals4.75%+4.74 ppHealth Care Equipment3.24%+3.24 ppBiotechnology2.55%+2.55 ppLife Sciences Tools & Services2.21%+2.20 ppManaged Health Care1.98%+1.98 ppHealth Care Services0.83%+0.83 ppHealth Care Supplies0.31%+0.31 ppHealth Care Distributors0.29%+0.29 ppHealth Care Facilities0.28%+0.28 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.83%
Industry change · 12M
+0.83 pp
Health Care Services · contribution
+0.829 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2021 · 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 | $108.4bn | 0.372% | +0.009 pp | +0.371 pp | +34.5% | Yes |
| Cigna → CI | United States | $78.7bn | 0.270% | -0.048 pp | +0.270 pp | +34.0% | Yes |
| Labcorp → LH | United States | $24.9bn | 0.085% | +0.004 pp | +0.085 pp | +53.5% | Yes |
| Quest Diagnostics → DGX | United States | $17.3bn | 0.059% | -0.003 pp | +0.059 pp | +13.7% | Yes |
| DaVita → DVA | United States | $12.8bn | 0.044% | -0.001 pp | +0.044 pp | +37.6% | 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.