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
Pharmaceuticals0.01%-5.23 ppHealth Care Equipment0.00%-3.42 ppBiotechnology0.00%-2.32 ppLife Sciences Tools & Services0.00%-1.79 ppManaged Health Care0.00%-1.70 ppHealth Care Services0.00%-0.94 ppHealth Care Distributors0.00%-0.35 ppHealth Care Facilities0.00%-0.22 ppHealth Care Supplies0.00%-0.10 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Equipment
Health Care Equipment · weight
0.00%
Industry change · 12M
-3.42 pp
Health Care Equipment · contribution
-3.416 pp
Company participation
7%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 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 |
|---|---|---|---|---|---|---|---|
| Abbott Laboratories → ABT | United States | $192.7bn | 0.001% | +0.000 pp | -0.785 pp | +32.2% | No |
| Medtronic → MDT | United States | $139.7bn | 0.001% | +0.000 pp | -0.773 pp | -2.1% | No |
| Stryker Corporation → SYK | United States | $78.3bn | 0.000% | +0.000 pp | -0.429 pp | -2.5% | No |
| Boston Scientific → BSX | United States | $54.7bn | 0.000% | +0.000 pp | -0.301 pp | -6.1% | No |
| Becton Dickinson → BDX | United States | $51.7bn | 0.000% | -0.000 pp | -0.278 pp | -6.8% | No |
| Baxter International → BAX | United States | $40.7bn | 0.000% | -0.000 pp | -0.237 pp | -7.1% | No |
| Zimmer Biomet → ZBH | United States | $27.4bn | 0.000% | +0.000 pp | -0.145 pp | -0.0% | No |
| Idexx Laboratories → IDXX | United States | $33.4bn | 0.000% | +0.000 pp | -0.124 pp | +44.6% | No |
| Intuitive Surgical → ISRG | United States | $27.7bn | 0.000% | +0.000 pp | -0.110 pp | +31.4% | No |
| ResMed| → RMD | United States | $24.8bn | 0.000% | -0.000 pp | -0.103 pp | +28.1% | No |
| Edwards Lifesciences → EW | United States | $49.6bn | 0.000% | +0.000 pp | -0.081 pp | +8.9% | No |
| Revvity → RVTY | United States | $14.0bn | 0.000% | +0.000 pp | -0.050 pp | +47.8% | No |
| Steris → STE | United States | $15.0bn | 0.000% | +0.000 pp | +0.000 pp | +23.1% | No |
| Dexcom → DXCM | United States | $9.9bn | 0.000% | -0.000 pp | +0.000 pp | +176.2% | 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.