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
Pharmaceuticals3.38%-2.13 ppBiotechnology1.66%-1.72 ppHealth Care Equipment1.82%-1.01 ppManaged Health Care1.30%-0.65 ppLife Sciences Tools & Services0.96%-0.55 ppHealth Care Services0.33%-0.38 ppHealth Care Distributors0.22%-0.29 ppHealth Care Supplies0.08%-0.06 ppHealth Care Facilities0.16%-0.05 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Distributors
Health Care Distributors · weight
0.22%
Industry change · 12M
-0.29 pp
Health Care Distributors · contribution
-0.290 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 2019 · 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 | $24.6bn | 0.081% | -0.001 pp | -0.120 pp | -23.2% | No |
| Cardinal Health → CAH | United States | $14.9bn | 0.049% | -0.004 pp | -0.082 pp | -27.8% | No |
| Cencora → COR | United States | $17.6bn | 0.058% | -0.006 pp | -0.066 pp | -14.9% | No |
| Henry Schein → HSIC | United States | $9.3bn | 0.031% | -0.003 pp | -0.023 pp | +2.7% | 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.