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
Pharmaceuticals4.68%+4.67 ppHealth Care Equipment3.16%+3.15 ppBiotechnology2.12%+2.12 ppLife Sciences Tools & Services2.11%+2.11 ppManaged Health Care2.02%+2.01 ppHealth Care Services0.86%+0.86 ppHealth Care Distributors0.29%+0.28 ppHealth Care Supplies0.28%+0.28 ppHealth Care Facilities0.24%+0.24 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Services
Health Care Services · weight
0.86%
Industry change · 12M
+0.86 pp
Health Care Services · contribution
+0.862 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 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 | $109.9bn | 0.388% | +0.195 pp | +0.387 pp | +32.3% | Yes |
| Cigna → CI | United States | $81.3bn | 0.287% | +0.121 pp | +0.287 pp | +27.4% | Yes |
| Labcorp → LH | United States | $23.2bn | 0.082% | +0.040 pp | +0.082 pp | +66.1% | Yes |
| Quest Diagnostics → DGX | United States | $17.2bn | 0.061% | +0.027 pp | +0.061 pp | +18.0% | Yes |
| DaVita → DVA | United States | $12.8bn | 0.045% | +0.022 pp | +0.045 pp | +52.2% | 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.