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
Pharmaceuticals5.40%+2.03 ppHealth Care Equipment3.38%+1.56 ppLife Sciences Tools & Services1.77%+0.80 ppBiotechnology2.38%+0.72 ppHealth Care Services0.99%+0.66 ppManaged Health Care1.95%+0.65 ppHealth Care Distributors0.34%+0.12 ppHealth Care Facilities0.23%+0.07 ppHealth Care Supplies0.12%+0.04 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.34%
Industry change · 12M
+0.12 pp
Health Care Distributors · contribution
+0.119 pp
Company participation
25%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 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 |
|---|---|---|---|---|---|---|---|
| McKesson Corporation → MCK | United States | $25.7bn | 0.127% | +0.002 pp | +0.046 pp | +12.5% | No |
| Cencora → COR | United States | $17.6bn | 0.087% | -0.006 pp | +0.029 pp | +10.9% | No |
| Cardinal Health → CAH | United States | $15.0bn | 0.074% | -0.003 pp | +0.025 pp | +6.7% | No |
| Henry Schein → HSIC | United States | $10.1bn | 0.050% | +0.002 pp | +0.019 pp | +13.1% | 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.