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
Managed Health Care2.56%+0.64 ppPharmaceuticals5.04%+0.30 ppLife Sciences Tools & Services1.99%-0.29 ppHealth Care Equipment2.86%-0.23 ppBiotechnology2.39%-0.17 ppHealth Care Supplies0.16%-0.16 ppHealth Care Distributors0.40%+0.13 ppHealth Care Services0.91%+0.10 ppHealth Care Facilities0.20%-0.07 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.40%
Industry change · 12M
+0.13 pp
Health Care Distributors · contribution
+0.125 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 2022 · 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 | $52.7bn | 0.189% | +0.017 pp | +0.083 pp | +81.0% | Yes |
| Cencora → COR | United States | $30.4bn | 0.109% | -0.008 pp | +0.024 pp | +24.2% | No |
| Cardinal Health → CAH | United States | $19.3bn | 0.069% | +0.014 pp | +0.018 pp | +39.8% | Yes |
| Henry Schein → HSIC | United States | $10.0bn | 0.036% | -0.007 pp | +0.000 pp | -2.9% | 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.