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 & Services1.51%+0.00 ppBiotechnology3.38%+0.00 ppHealth Care Equipment2.83%+0.00 ppHealth Care Supplies0.14%+0.00 ppPharmaceuticals5.50%+0.00 ppHealth Care Distributors0.51%+0.00 ppHealth Care Services0.71%+0.00 ppManaged Health Care1.95%+0.00 ppHealth Care Facilities0.20%+0.00 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Equipment
Health Care Equipment · weight
2.83%
Industry change · 12M
+0.00 pp
Health Care Equipment · contribution
+0.000 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 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 |
|---|---|---|---|---|---|---|---|
| Medtronic → MDT | United States | $116.3bn | 0.663% | +0.000 pp | +0.000 pp | +0.0% | No |
| Abbott Laboratories → ABT | United States | $108.2bn | 0.617% | +0.000 pp | +0.000 pp | +0.0% | No |
| Stryker Corporation → SYK | United States | $61.5bn | 0.351% | +0.000 pp | +0.000 pp | +0.0% | No |
| Becton Dickinson → BDX | United States | $42.5bn | 0.242% | +0.000 pp | +0.000 pp | +0.0% | No |
| Baxter International → BAX | United States | $39.2bn | 0.224% | +0.000 pp | +0.000 pp | +0.0% | No |
| Boston Scientific → BSX | United States | $38.4bn | 0.219% | +0.000 pp | +0.000 pp | +0.0% | No |
| Zimmer Biomet → ZBH | United States | $25.0bn | 0.143% | +0.000 pp | +0.000 pp | +0.0% | No |
| Idexx Laboratories → IDXX | United States | $16.3bn | 0.093% | +0.000 pp | +0.000 pp | +0.0% | No |
| Intuitive Surgical → ISRG | United States | $16.1bn | 0.092% | +0.000 pp | +0.000 pp | +0.0% | No |
| ResMed| → RMD | United States | $14.4bn | 0.082% | +0.000 pp | +0.000 pp | +0.0% | No |
| Edwards Lifesciences → EW | United States | $8.9bn | 0.051% | +0.000 pp | +0.000 pp | +0.0% | No |
| Revvity → RVTY | United States | $8.8bn | 0.050% | +0.000 pp | +0.000 pp | +0.0% | 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.