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
Pharmaceuticals4.75%+4.74 ppHealth Care Equipment3.24%+3.24 ppBiotechnology2.55%+2.55 ppLife Sciences Tools & Services2.21%+2.20 ppManaged Health Care1.98%+1.98 ppHealth Care Services0.83%+0.83 ppHealth Care Supplies0.31%+0.31 ppHealth Care Distributors0.29%+0.29 ppHealth Care Facilities0.28%+0.28 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.31%
Industry change · 12M
+0.31 pp
Health Care Supplies · contribution
+0.311 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 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 | $55.1bn | 0.189% | +0.018 pp | +0.189 pp | +136.8% | Yes |
| West Pharmaceutical Services → WST | United States | $30.5bn | 0.104% | +0.017 pp | +0.104 pp | +53.5% | Yes |
| Cooper Companies (The) → COO | United States | $5.2bn | 0.018% | -0.000 pp | +0.018 pp | +49.1% | 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.