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
Pharmaceuticals4.84%-0.57 ppBiotechnology2.27%-0.29 ppLife Sciences Tools & Services1.98%+0.19 ppHealth Care Services0.85%-0.18 ppHealth Care Supplies0.27%+0.15 ppManaged Health Care2.03%-0.08 ppHealth Care Distributors0.30%-0.03 ppHealth Care Facilities0.23%-0.02 ppHealth Care Equipment3.34%-0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Equipment
Health Care Equipment · weight
3.34%
Industry change · 12M
-0.01 pp
Health Care Equipment · contribution
-0.009 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Dec 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 |
|---|---|---|---|---|---|---|---|
| Edwards Lifesciences → EW | United States | $56.9bn | 0.230% | +0.230 pp | +0.151 pp | +17.3% | Yes |
| Medtronic → MDT | United States | $157.7bn | 0.638% | +0.637 pp | -0.108 pp | +5.7% | Yes |
| Boston Scientific → BSX | United States | $51.5bn | 0.208% | +0.208 pp | -0.101 pp | -20.5% | Yes |
| Idexx Laboratories → IDXX | United States | $42.6bn | 0.173% | +0.172 pp | +0.063 pp | +91.4% | Yes |
| Becton Dickinson → BDX | United States | $55.7bn | 0.225% | +0.225 pp | -0.052 pp | -6.8% | Yes |
| Baxter International → BAX | United States | $41.0bn | 0.166% | +0.166 pp | -0.044 pp | -3.0% | Yes |
| Dexcom → DXCM | United States | $8.9bn | 0.036% | +0.036 pp | +0.036 pp | +69.0% | Yes |
| Abbott Laboratories → ABT | United States | $194.1bn | 0.785% | +0.784 pp | +0.032 pp | +28.0% | Yes |
| Zimmer Biomet → ZBH | United States | $31.0bn | 0.126% | +0.125 pp | -0.021 pp | +3.8% | Yes |
| Intuitive Surgical → ISRG | United States | $32.1bn | 0.130% | +0.130 pp | +0.018 pp | +38.4% | Yes |
| ResMed| → RMD | United States | $30.8bn | 0.125% | +0.125 pp | +0.015 pp | +38.3% | Yes |
| Stryker Corporation → SYK | United States | $92.1bn | 0.373% | +0.372 pp | -0.013 pp | +18.2% | Yes |
| Revvity → RVTY | United States | $16.1bn | 0.065% | +0.065 pp | +0.012 pp | +48.2% | Yes |
| Steris → STE | United States | $16.2bn | 0.065% | +0.065 pp | +0.002 pp | +25.5% | 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.