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
Pharmaceuticals4.68%+4.67 ppHealth Care Equipment3.16%+3.15 ppBiotechnology2.12%+2.12 ppLife Sciences Tools & Services2.11%+2.11 ppManaged Health Care2.02%+2.01 ppHealth Care Services0.86%+0.86 ppHealth Care Distributors0.29%+0.28 ppHealth Care Supplies0.28%+0.28 ppHealth Care Facilities0.24%+0.24 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Equipment
Health Care Equipment · weight
3.16%
Industry change · 12M
+3.15 pp
Health Care Equipment · contribution
+3.154 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2021 · 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 | $206.0bn | 0.727% | +0.312 pp | +0.726 pp | +28.7% | Yes |
| Medtronic → MDT | United States | $166.8bn | 0.589% | +0.278 pp | +0.588 pp | +38.2% | Yes |
| Stryker Corporation → SYK | United States | $97.9bn | 0.345% | +0.166 pp | +0.345 pp | +45.7% | Yes |
| Edwards Lifesciences → EW | United States | $64.4bn | 0.227% | +0.125 pp | +0.227 pp | +49.9% | Yes |
| Boston Scientific → BSX | United States | $60.8bn | 0.214% | +0.107 pp | +0.214 pp | +21.8% | Yes |
| Becton Dickinson → BDX | United States | $54.2bn | 0.192% | +0.086 pp | +0.191 pp | +3.0% | Yes |
| Idexx Laboratories → IDXX | United States | $53.9bn | 0.190% | +0.108 pp | +0.190 pp | +91.3% | Yes |
| Baxter International → BAX | United States | $40.5bn | 0.143% | +0.060 pp | +0.143 pp | -5.3% | Yes |
| Intuitive Surgical → ISRG | United States | $36.3bn | 0.128% | +0.071 pp | +0.128 pp | +61.4% | Yes |
| ResMed| → RMD | United States | $35.9bn | 0.127% | +0.072 pp | +0.126 pp | +29.4% | Yes |
| Zimmer Biomet → ZBH | United States | $32.6bn | 0.115% | +0.052 pp | +0.115 pp | +35.6% | Yes |
| Steris → STE | United States | $17.6bn | 0.062% | +0.030 pp | +0.062 pp | +35.7% | Yes |
| Revvity → RVTY | United States | $17.3bn | 0.061% | +0.033 pp | +0.061 pp | +57.8% | Yes |
| Dexcom → DXCM | United States | $10.3bn | 0.036% | +0.020 pp | +0.036 pp | +5.3% | 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.