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
Pharmaceuticals4.74%+4.73 ppHealth Care Equipment3.09%+3.08 ppBiotechnology2.57%+2.56 ppLife Sciences Tools & Services2.27%+2.27 ppManaged Health Care1.92%+1.91 ppHealth Care Services0.81%+0.81 ppHealth Care Supplies0.32%+0.32 ppHealth Care Distributors0.28%+0.28 ppHealth Care Facilities0.27%+0.27 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.81%
Industry change · 12M
+0.81 pp
Health Care Services · contribution
+0.813 pp
Company participation
80%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 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 | $114.0bn | 0.381% | -0.026 pp | +0.381 pp | +43.0% | Yes |
| Cigna → CI | United States | $72.0bn | 0.241% | -0.077 pp | +0.240 pp | +20.3% | No |
| Labcorp → LH | United States | $25.1bn | 0.084% | +0.001 pp | +0.084 pp | +72.6% | Yes |
| Quest Diagnostics → DGX | United States | $18.7bn | 0.062% | +0.001 pp | +0.062 pp | +40.0% | Yes |
| DaVita → DVA | United States | $13.7bn | 0.046% | +0.000 pp | +0.046 pp | +50.7% | 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.