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
Pharmaceuticals4.84%-0.57 ppBiotechnology2.27%-0.29 ppLife Sciences Tools & Services1.98%+0.19 ppHealth Care Services0.85%-0.18 ppHealth Care Supplies0.27%+0.15 ppManaged Health Care2.03%-0.08 ppHealth Care Distributors0.30%-0.03 ppHealth Care Facilities0.23%-0.02 ppHealth Care Equipment3.34%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.30%
Industry change · 12M
-0.03 pp
Health Care Distributors · contribution
-0.033 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 2020 · 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 |
|---|---|---|---|---|---|---|---|
| Henry Schein → HSIC | United States | $9.5bn | 0.039% | +0.039 pp | -0.009 pp | +0.2% | Yes |
| McKesson Corporation → MCK | United States | $27.9bn | 0.113% | +0.113 pp | -0.009 pp | +27.1% | Yes |
| Cardinal Health → CAH | United States | $15.7bn | 0.064% | +0.064 pp | -0.009 pp | +10.1% | Yes |
| Cencora → COR | United States | $20.0bn | 0.081% | +0.081 pp | -0.005 pp | +23.4% | 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.