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
Health Care Equipment3.10%+0.28 ppBiotechnology3.11%-0.27 ppManaged Health Care2.11%+0.16 ppHealth Care Distributors0.42%-0.09 ppHealth Care Services0.66%-0.05 ppHealth Care Supplies0.18%+0.05 ppLife Sciences Tools & Services1.55%+0.03 ppHealth Care Facilities0.22%+0.01 ppPharmaceuticals5.50%+0.00 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Equipment
Health Care Equipment · weight
3.10%
Industry change · 12M
+0.28 pp
Health Care Equipment · contribution
+0.277 pp
Company participation
83%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2018 · 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 |
|---|---|---|---|---|---|---|---|
| Becton Dickinson → BDX | United States | $49.1bn | 0.298% | +0.026 pp | +0.056 pp | -0.7% | Yes |
| Boston Scientific → BSX | United States | $45.1bn | 0.274% | +0.043 pp | +0.055 pp | +17.0% | Yes |
| Medtronic → MDT | United States | $115.7bn | 0.702% | +0.035 pp | +0.039 pp | +0.3% | Yes |
| Stryker Corporation → SYK | United States | $63.1bn | 0.383% | +0.013 pp | +0.032 pp | +3.3% | Yes |
| Abbott Laboratories → ABT | United States | $106.9bn | 0.649% | +0.007 pp | +0.032 pp | -1.4% | Yes |
| Idexx Laboratories → IDXX | United States | $18.9bn | 0.115% | +0.013 pp | +0.022 pp | +16.5% | Yes |
| Intuitive Surgical → ISRG | United States | $18.1bn | 0.110% | +0.015 pp | +0.018 pp | +10.8% | Yes |
| Baxter International → BAX | United States | $39.5bn | 0.240% | +0.024 pp | +0.016 pp | +3.0% | Yes |
| Edwards Lifesciences → EW | United States | $10.2bn | 0.062% | +0.002 pp | +0.011 pp | +15.0% | Yes |
| Zimmer Biomet → ZBH | United States | $22.0bn | 0.133% | +0.001 pp | -0.009 pp | -11.9% | No |
| ResMed| → RMD | United States | $14.8bn | 0.090% | +0.003 pp | +0.008 pp | +3.5% | Yes |
| Revvity → RVTY | United States | $8.1bn | 0.049% | -0.002 pp | -0.001 pp | -8.6% | 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.