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
Pharmaceuticals5.34%+1.80 ppHealth Care Equipment3.37%+1.57 ppBiotechnology2.48%+0.86 ppLife Sciences Tools & Services1.74%+0.81 ppManaged Health Care1.93%+0.64 ppHealth Care Services0.99%+0.61 ppHealth Care Distributors0.34%+0.11 ppHealth Care Facilities0.24%+0.08 ppHealth Care Supplies0.12%+0.05 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.34%
Industry change · 12M
+0.11 pp
Health Care Distributors · contribution
+0.109 pp
Company participation
25%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 2019 · 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 |
|---|---|---|---|---|---|---|---|
| McKesson Corporation → MCK | United States | $24.0bn | 0.125% | -0.016 pp | +0.042 pp | +7.9% | No |
| Cencora → COR | United States | $17.8bn | 0.093% | -0.005 pp | +0.028 pp | +3.3% | No |
| Cardinal Health → CAH | United States | $14.7bn | 0.077% | +0.004 pp | +0.024 pp | +1.8% | Yes |
| Henry Schein → HSIC | United States | $9.3bn | 0.048% | -0.004 pp | +0.015 pp | -3.9% | 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.