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
Latest available · not live
20182026
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Health Care
Health Care Equipment1.52%-0.74 ppPharmaceuticals4.07%+0.69 ppBiotechnology2.04%+0.24 ppLife Sciences Tools & Services1.07%+0.17 ppHealth Care Technology0.10%+0.08 ppHealth Care Services0.41%-0.05 ppManaged Health Care0.82%-0.05 ppHealth Care Facilities0.16%-0.04 ppHealth Care Distributors0.37%-0.04 ppHealth Care Supplies0.08%-0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.37%
Industry change · 12M
-0.04 pp
Health Care Distributors · contribution
-0.039 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2026 · 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 | $99.5bn | 0.167% | +0.009 pp | -0.025 pp | +11.0% | Yes |
| Cencora → COR | United States | $57.3bn | 0.096% | +0.001 pp | -0.025 pp | -3.2% | Yes |
| Cardinal Health → CAH | United States | $51.7bn | 0.087% | -0.010 pp | +0.012 pp | +43.2% | Yes |
| Henry Schein → HSIC | United States | $9.4bn | 0.016% | -0.001 pp | -0.000 pp | +26.5% | 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.