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
Pharmaceuticals2.41%+2.40 ppHealth Care Equipment1.64%+1.63 ppBiotechnology1.13%+1.13 ppManaged Health Care1.04%+1.04 ppLife Sciences Tools & Services0.97%+0.97 ppHealth Care Services0.46%+0.46 ppHealth Care Distributors0.16%+0.16 ppHealth Care Supplies0.13%+0.13 ppHealth Care Facilities0.13%+0.13 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.16%
Industry change · 12M
+0.16 pp
Health Care Distributors · contribution
+0.162 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 | $31.0bn | 0.061% | -0.052 pp | +0.061 pp | +45.7% | No |
| Cencora → COR | United States | $24.2bn | 0.047% | -0.034 pp | +0.047 pp | +42.4% | No |
| Cardinal Health → CAH | United States | $17.8bn | 0.035% | -0.029 pp | +0.035 pp | +31.5% | No |
| Henry Schein → HSIC | United States | $9.9bn | 0.019% | -0.019 pp | +0.019 pp | +37.1% | 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.