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
Pharmaceuticals4.80%+2.43 ppHealth Care Equipment3.31%+1.65 ppManaged Health Care2.29%+1.35 ppBiotechnology2.39%+1.28 ppLife Sciences Tools & Services2.05%+1.06 ppHealth Care Services0.90%+0.48 ppHealth Care Distributors0.34%+0.20 ppHealth Care Facilities0.26%+0.15 ppHealth Care Supplies0.26%+0.12 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Supplies
Health Care Supplies · weight
0.26%
Industry change · 12M
+0.12 pp
Health Care Supplies · contribution
+0.116 pp
Company participation
33%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 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 | $28.8bn | 0.100% | -0.011 pp | +0.058 pp | +38.2% | No |
| Align Technology → ALGN | United States | $40.3bn | 0.140% | -0.023 pp | +0.050 pp | -9.8% | No |
| Cooper Companies (The) → COO | United States | $5.1bn | 0.018% | +0.002 pp | +0.008 pp | +5.9% | 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.