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
Life Sciences Tools & Services1.51%+0.00 ppBiotechnology3.38%+0.00 ppHealth Care Equipment2.83%+0.00 ppHealth Care Supplies0.14%+0.00 ppPharmaceuticals5.50%+0.00 ppHealth Care Distributors0.51%+0.00 ppHealth Care Services0.71%+0.00 ppManaged Health Care1.95%+0.00 ppHealth Care Facilities0.20%+0.00 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.51%
Industry change · 12M
+0.00 pp
Health Care Distributors · contribution
+0.000 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 2018 · 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 | $35.2bn | 0.201% | +0.000 pp | +0.000 pp | +0.0% | No |
| Cardinal Health → CAH | United States | $23.0bn | 0.131% | +0.000 pp | +0.000 pp | +0.0% | No |
| Cencora → COR | United States | $21.7bn | 0.124% | +0.000 pp | +0.000 pp | +0.0% | No |
| Henry Schein → HSIC | United States | $9.3bn | 0.053% | +0.000 pp | +0.000 pp | +0.0% | 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.