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
Health Care Equipment3.04%-0.28 ppBiotechnology2.64%+0.26 ppPharmaceuticals5.02%+0.22 ppLife Sciences Tools & Services1.94%-0.10 ppHealth Care Services0.83%-0.08 ppHealth Care Supplies0.18%-0.08 ppHealth Care Distributors0.38%+0.04 ppHealth Care Facilities0.24%-0.03 ppManaged Health Care2.30%+0.01 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Equipment
Health Care Equipment · weight
3.04%
Industry change · 12M
-0.28 pp
Health Care Equipment · contribution
-0.279 pp
Company participation
53%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 2023 · 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 |
|---|---|---|---|---|---|---|---|
| GE HealthCare → GEHC | United States | $34.5bn | 0.121% | +0.121 pp | +0.121 pp | +0.0% | Yes |
| Abbott Laboratories → ABT | United States | $176.8bn | 0.621% | -0.015 pp | -0.116 pp | -14.2% | No |
| Dexcom → DXCM | United States | $42.9bn | 0.151% | -0.002 pp | +0.116 pp | +7.3% | Yes |
| Medtronic → MDT | United States | $110.1bn | 0.387% | +0.031 pp | -0.102 pp | -18.7% | No |
| Intuitive Surgical → ISRG | United States | $80.4bn | 0.283% | -0.042 pp | -0.078 pp | -21.0% | No |
| Baxter International → BAX | United States | $20.2bn | 0.071% | -0.026 pp | -0.077 pp | -52.0% | No |
| Edwards Lifesciences → EW | United States | $48.9bn | 0.172% | +0.010 pp | -0.071 pp | -28.4% | Yes |
| Revvity → RVTY | United States | $15.7bn | 0.055% | -0.005 pp | -0.023 pp | -30.5% | No |
| Becton Dickinson → BDX | United States | $52.3bn | 0.184% | -0.004 pp | -0.022 pp | -10.2% | No |
| Steris → STE | United States | $18.7bn | 0.066% | +0.003 pp | -0.018 pp | -20.9% | Yes |
| Idexx Laboratories → IDXX | United States | $39.2bn | 0.138% | +0.018 pp | -0.018 pp | -11.1% | Yes |
| Boston Scientific → BSX | United States | $67.0bn | 0.236% | +0.016 pp | +0.017 pp | +5.8% | Yes |
| ResMed| → RMD | United States | $31.3bn | 0.110% | -0.004 pp | -0.015 pp | -13.0% | No |
| Stryker Corporation → SYK | United States | $99.6bn | 0.350% | +0.050 pp | +0.005 pp | +1.1% | Yes |
| Zimmer Biomet → ZBH | United States | $25.9bn | 0.091% | +0.005 pp | +0.001 pp | +1.1% | 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.