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
Pharmaceuticals4.86%-0.37 ppLife Sciences Tools & Services2.05%+0.28 ppBiotechnology2.35%-0.27 ppHealth Care Services0.89%-0.17 ppHealth Care Supplies0.27%+0.14 ppHealth Care Equipment3.36%+0.06 ppHealth Care Distributors0.32%-0.04 ppHealth Care Facilities0.22%-0.02 ppManaged Health Care2.06%+0.00 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.89%
Industry change · 12M
-0.17 pp
Health Care Services · contribution
-0.169 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 2020 · 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 | $88.7bn | 0.377% | +0.376 pp | -0.116 pp | -7.1% | Yes |
| Cigna → CI | United States | $75.6bn | 0.321% | +0.321 pp | -0.055 pp | +4.6% | Yes |
| DaVita → DVA | United States | $12.3bn | 0.052% | +0.052 pp | +0.005 pp | +53.1% | Yes |
| Labcorp → LH | United States | $16.7bn | 0.071% | +0.071 pp | -0.001 pp | +16.0% | Yes |
| Quest Diagnostics → DGX | United States | $16.7bn | 0.071% | +0.071 pp | -0.001 pp | +19.0% | 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.