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
Pharmaceuticals4.87%+1.93 ppHealth Care Equipment3.17%+1.20 ppManaged Health Care2.18%+1.04 ppBiotechnology2.33%+0.96 ppLife Sciences Tools & Services2.10%+0.84 ppHealth Care Services0.90%+0.37 ppHealth Care Distributors0.31%+0.13 ppHealth Care Facilities0.25%+0.12 ppHealth Care Supplies0.25%+0.08 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.90%
Industry change · 12M
+0.37 pp
Health Care Services · contribution
+0.366 pp
Company participation
40%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 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 | $140.6bn | 0.473% | +0.079 pp | +0.248 pp | +52.2% | Yes |
| Cigna → CI | United States | $76.4bn | 0.257% | +0.014 pp | +0.069 pp | +8.1% | Yes |
| Labcorp → LH | United States | $22.3bn | 0.075% | -0.004 pp | +0.029 pp | +18.5% | No |
| Quest Diagnostics → DGX | United States | $16.6bn | 0.056% | -0.004 pp | +0.014 pp | +6.5% | No |
| DaVita → DVA | United States | $11.0bn | 0.037% | +0.002 pp | +0.006 pp | -7.7% | 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.