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
Pharmaceuticals2.41%+2.40 ppHealth Care Equipment1.64%+1.63 ppBiotechnology1.13%+1.13 ppManaged Health Care1.04%+1.04 ppLife Sciences Tools & Services0.97%+0.97 ppHealth Care Services0.46%+0.46 ppHealth Care Distributors0.16%+0.16 ppHealth Care Supplies0.13%+0.13 ppHealth Care Facilities0.13%+0.13 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Equipment
Health Care Equipment · weight
1.64%
Industry change · 12M
+1.63 pp
Health Care Equipment · contribution
+1.635 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 | $212.3bn | 0.415% | -0.370 pp | +0.414 pp | +54.2% | No |
| Medtronic → MDT | United States | $159.2bn | 0.311% | -0.327 pp | +0.311 pp | +33.9% | No |
| Stryker Corporation → SYK | United States | $91.6bn | 0.179% | -0.194 pp | +0.179 pp | +48.0% | No |
| Boston Scientific → BSX | United States | $54.8bn | 0.107% | -0.101 pp | +0.107 pp | +18.4% | No |
| Becton Dickinson → BDX | United States | $54.2bn | 0.106% | -0.119 pp | +0.106 pp | +7.3% | No |
| Edwards Lifesciences → EW | United States | $52.2bn | 0.102% | -0.128 pp | +0.102 pp | +33.0% | No |
| Baxter International → BAX | United States | $42.6bn | 0.083% | -0.083 pp | +0.083 pp | +5.1% | No |
| Idexx Laboratories → IDXX | United States | $41.8bn | 0.082% | -0.091 pp | +0.082 pp | +102.0% | No |
| Zimmer Biomet → ZBH | United States | $32.3bn | 0.063% | -0.062 pp | +0.063 pp | +59.5% | No |
| Intuitive Surgical → ISRG | United States | $29.0bn | 0.057% | -0.073 pp | +0.057 pp | +49.2% | No |
| ResMed| → RMD | United States | $28.1bn | 0.055% | -0.070 pp | +0.055 pp | +32.8% | No |
| Steris → STE | United States | $16.3bn | 0.032% | -0.034 pp | +0.032 pp | +37.3% | No |
| Revvity → RVTY | United States | $14.4bn | 0.028% | -0.037 pp | +0.028 pp | +70.9% | No |
| Dexcom → DXCM | United States | $8.6bn | 0.017% | -0.019 pp | +0.017 pp | +33.5% | 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.