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
Pharmaceuticals4.48%-1.87 ppBiotechnology2.08%-1.01 ppManaged Health Care2.04%-0.41 ppHealth Care Equipment3.24%-0.35 ppHealth Care Services0.87%-0.20 ppHealth Care Supplies0.28%+0.16 ppLife Sciences Tools & Services1.94%-0.07 ppHealth Care Distributors0.30%-0.07 ppHealth Care Facilities0.24%+0.03 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.30%
Industry change · 12M
-0.07 pp
Health Care Distributors · contribution
-0.068 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 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 | $29.9bn | 0.108% | +0.041 pp | -0.032 pp | +34.1% | Yes |
| Cardinal Health → CAH | United States | $17.7bn | 0.064% | +0.026 pp | -0.017 pp | +26.5% | Yes |
| Cencora → COR | United States | $24.7bn | 0.090% | +0.039 pp | -0.014 pp | +43.9% | Yes |
| Henry Schein → HSIC | United States | $10.3bn | 0.037% | +0.015 pp | -0.006 pp | +32.9% | 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.