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
Pharmaceuticals4.87%+1.93 ppHealth Care Equipment3.17%+1.20 ppManaged Health Care2.18%+1.04 ppBiotechnology2.33%+0.96 ppLife Sciences Tools & Services2.10%+0.84 ppHealth Care Services0.90%+0.37 ppHealth Care Distributors0.31%+0.13 ppHealth Care Facilities0.25%+0.12 ppHealth Care Supplies0.25%+0.08 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.25%
Industry change · 12M
+0.08 pp
Health Care Supplies · contribution
+0.083 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 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 |
|---|---|---|---|---|---|---|---|
| West Pharmaceutical Services → WST | United States | $29.1bn | 0.098% | -0.008 pp | +0.045 pp | +31.5% | No |
| Align Technology → ALGN | United States | $39.0bn | 0.131% | -0.034 pp | +0.032 pp | -5.8% | No |
| Cooper Companies (The) → COO | United States | $4.9bn | 0.017% | -0.001 pp | +0.006 pp | +9.4% | 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.