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
Pharmaceuticals2.41%+2.40 ppHealth Care Equipment1.64%+1.63 ppBiotechnology1.13%+1.13 ppManaged Health Care1.04%+1.04 ppLife Sciences Tools & Services0.97%+0.97 ppHealth Care Services0.46%+0.46 ppHealth Care Distributors0.16%+0.16 ppHealth Care Supplies0.13%+0.13 ppHealth Care Facilities0.13%+0.13 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.46%
Industry change · 12M
+0.46 pp
Health Care Services · contribution
+0.457 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 | $98.7bn | 0.193% | -0.169 pp | +0.193 pp | +30.8% | No |
| Cigna → CI | United States | $85.1bn | 0.166% | -0.138 pp | +0.166 pp | +37.0% | No |
| Labcorp → LH | United States | $21.4bn | 0.042% | -0.027 pp | +0.042 pp | +101.8% | No |
| Quest Diagnostics → DGX | United States | $17.1bn | 0.033% | -0.032 pp | +0.033 pp | +63.4% | No |
| DaVita → DVA | United States | $11.8bn | 0.023% | -0.030 pp | +0.023 pp | +41.7% | 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.