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 Distributors
Health Care Distributors · weight
0.29%
Industry change · 12M
+0.28 pp
Health Care Distributors · contribution
+0.285 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 |
|---|---|---|---|---|---|---|---|
| McKesson Corporation → MCK | United States | $30.3bn | 0.107% | +0.046 pp | +0.107 pp | +25.9% | Yes |
| Cencora → COR | United States | $23.5bn | 0.083% | +0.036 pp | +0.083 pp | +21.0% | Yes |
| Cardinal Health → CAH | United States | $16.6bn | 0.058% | +0.024 pp | +0.058 pp | +13.4% | Yes |
| Henry Schein → HSIC | United States | $10.4bn | 0.037% | +0.018 pp | +0.037 pp | +27.1% | 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.