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
Biotechnology3.08%-0.30 ppHealth Care Equipment3.07%+0.24 ppManaged Health Care2.06%+0.10 ppPharmaceuticals5.41%-0.09 ppHealth Care Distributors0.43%-0.08 ppHealth Care Services0.65%-0.06 ppHealth Care Supplies0.18%+0.04 ppLife Sciences Tools & Services1.54%+0.03 ppHealth Care Facilities0.22%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.43%
Industry change · 12M
-0.08 pp
Health Care Distributors · contribution
-0.077 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 |
|---|---|---|---|---|---|---|---|
| Cardinal Health → CAH | United States | $16.2bn | 0.098% | -0.032 pp | -0.033 pp | -26.9% | No |
| McKesson Corporation → MCK | United States | $28.7bn | 0.174% | -0.011 pp | -0.027 pp | -15.6% | No |
| Cencora → COR | United States | $18.1bn | 0.110% | -0.016 pp | -0.014 pp | -16.9% | No |
| Henry Schein → HSIC | United States | $8.4bn | 0.051% | +0.003 pp | -0.002 pp | -8.6% | 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.