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
Pharmaceuticals5.46%+0.97 ppManaged Health Care2.54%+0.50 ppBiotechnology2.50%+0.42 ppLife Sciences Tools & Services2.04%+0.09 ppHealth Care Supplies0.18%-0.09 ppHealth Care Distributors0.38%+0.08 ppHealth Care Equipment3.17%-0.07 ppHealth Care Services0.91%+0.04 ppHealth Care Facilities0.24%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.18%
Industry change · 12M
-0.09 pp
Health Care Supplies · contribution
-0.094 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 2022 · 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 | $22.8bn | 0.083% | -0.049 pp | -0.088 pp | -51.3% | No |
| West Pharmaceutical Services → WST | United States | $23.3bn | 0.084% | -0.014 pp | -0.004 pp | -3.9% | No |
| Cooper Companies (The) → COO | United States | $4.4bn | 0.016% | -0.000 pp | -0.002 pp | -12.1% | 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.