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
Pharmaceuticals2.41%+2.40 ppHealth Care Equipment1.64%+1.63 ppBiotechnology1.13%+1.13 ppManaged Health Care1.04%+1.04 ppLife Sciences Tools & Services0.97%+0.97 ppHealth Care Services0.46%+0.46 ppHealth Care Distributors0.16%+0.16 ppHealth Care Supplies0.13%+0.13 ppHealth Care Facilities0.13%+0.13 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.13%
Industry change · 12M
+0.13 pp
Health Care Supplies · contribution
+0.134 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 2021 · 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 |
|---|---|---|---|---|---|---|---|
| Align Technology → ALGN | United States | $42.9bn | 0.084% | -0.087 pp | +0.084 pp | +211.3% | No |
| West Pharmaceutical Services → WST | United States | $20.9bn | 0.041% | -0.044 pp | +0.041 pp | +85.6% | No |
| Cooper Companies (The) → COO | United States | $4.7bn | 0.009% | -0.009 pp | +0.009 pp | +39.4% | 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.