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
Pharmaceuticals5.55%+0.89 ppManaged Health Care2.57%+0.50 ppBiotechnology2.81%+0.44 ppHealth Care Equipment2.88%-0.34 ppLife Sciences Tools & Services1.98%-0.32 ppHealth Care Supplies0.12%-0.17 ppHealth Care Services0.94%+0.15 ppHealth Care Distributors0.41%+0.14 ppHealth Care Facilities0.23%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.41%
Industry change · 12M
+0.14 pp
Health Care Distributors · contribution
+0.141 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 | $54.1bn | 0.184% | -0.005 pp | +0.072 pp | +77.1% | No |
| Cencora → COR | United States | $35.1bn | 0.119% | +0.010 pp | +0.038 pp | +51.0% | Yes |
| Cardinal Health → CAH | United States | $21.0bn | 0.071% | +0.002 pp | +0.027 pp | +79.5% | Yes |
| Henry Schein → HSIC | United States | $11.0bn | 0.037% | +0.001 pp | +0.004 pp | +13.9% | 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.