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
Pharmaceuticals4.86%-0.69 ppBiotechnology2.29%-0.52 ppLife Sciences Tools & Services1.59%-0.39 ppManaged Health Care2.25%-0.32 ppHealth Care Services0.65%-0.29 ppHealth Care Equipment2.84%-0.04 ppHealth Care Facilities0.21%-0.02 ppHealth Care Supplies0.14%+0.02 ppHealth Care Distributors0.43%+0.02 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.43%
Industry change · 12M
+0.02 pp
Health Care Distributors · contribution
+0.020 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 2023 · 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 | $62.6bn | 0.195% | +0.018 pp | +0.012 pp | +24.0% | Yes |
| Cardinal Health → CAH | United States | $26.4bn | 0.082% | +0.013 pp | +0.011 pp | +36.8% | Yes |
| Henry Schein → HSIC | United States | $8.7bn | 0.027% | -0.005 pp | -0.010 pp | -17.5% | No |
| Cencora → COR | United States | $40.8bn | 0.127% | +0.014 pp | +0.008 pp | +20.5% | 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.