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
Life Sciences Tools & Services2.24%+0.50 ppPharmaceuticals5.03%-0.32 ppManaged Health Care2.11%+0.18 ppHealth Care Supplies0.27%+0.15 ppHealth Care Services0.84%-0.15 ppHealth Care Equipment3.48%+0.12 ppBiotechnology2.43%-0.06 ppHealth Care Facilities0.20%-0.04 ppHealth Care Distributors0.31%-0.03 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.27%
Industry change · 12M
+0.15 pp
Health Care Supplies · contribution
+0.152 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 2020 · 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 |
|---|---|---|---|---|---|---|---|
| West Pharmaceutical Services → WST | United States | $20.1bn | 0.095% | +0.095 pp | +0.095 pp | +89.6% | Yes |
| Align Technology → ALGN | United States | $33.6bn | 0.159% | +0.159 pp | +0.055 pp | +68.9% | Yes |
| Cooper Companies (The) → COO | United States | $4.3bn | 0.020% | +0.020 pp | +0.001 pp | +9.7% | 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.