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
Pharmaceuticals4.62%+4.62 ppHealth Care Equipment3.09%+3.08 ppBiotechnology2.51%+2.51 ppLife Sciences Tools & Services2.28%+2.27 ppManaged Health Care1.92%+1.91 ppHealth Care Services0.82%+0.82 ppHealth Care Supplies0.31%+0.31 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 Distributors
Health Care Distributors · weight
0.28%
Industry change · 12M
+0.28 pp
Health Care Distributors · contribution
+0.283 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 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 | $30.8bn | 0.108% | +0.001 pp | +0.108 pp | +35.1% | Yes |
| Cencora → COR | United States | $24.8bn | 0.087% | +0.004 pp | +0.087 pp | +30.9% | Yes |
| Cardinal Health → CAH | United States | $14.4bn | 0.050% | -0.008 pp | +0.050 pp | +9.1% | No |
| Henry Schein → HSIC | United States | $10.6bn | 0.037% | +0.001 pp | +0.037 pp | +29.6% | 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.