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
Pharmaceuticals3.54%-1.96 ppBiotechnology1.63%-1.76 ppHealth Care Equipment1.79%-1.03 ppManaged Health Care1.29%-0.66 ppLife Sciences Tools & Services0.93%-0.58 ppHealth Care Services0.38%-0.33 ppHealth Care Distributors0.23%-0.28 ppHealth Care Supplies0.07%-0.07 ppHealth Care Facilities0.16%-0.05 ppHealth Care Technology0.00%+0.00 pp
3 · Sub-industry
Inside Health Care Equipment
Health Care Equipment · weight
1.79%
Industry change · 12M
-1.03 pp
Health Care Equipment · contribution
-1.033 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 2018 · 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 |
|---|---|---|---|---|---|---|---|
| Medtronic → MDT | United States | $121.3bn | 0.411% | -0.300 pp | -0.252 pp | +5.8% | No |
| Abbott Laboratories → ABT | United States | $121.1bn | 0.410% | -0.260 pp | -0.207 pp | +12.4% | No |
| Stryker Corporation → SYK | United States | $60.7bn | 0.206% | -0.150 pp | -0.145 pp | -0.5% | No |
| Baxter International → BAX | United States | $33.4bn | 0.113% | -0.113 pp | -0.111 pp | -12.6% | No |
| Becton Dickinson → BDX | United States | $47.3bn | 0.160% | -0.139 pp | -0.082 pp | -4.2% | No |
| Zimmer Biomet → ZBH | United States | $22.4bn | 0.076% | -0.068 pp | -0.066 pp | -10.1% | No |
| Boston Scientific → BSX | United States | $50.0bn | 0.170% | -0.102 pp | -0.049 pp | +29.3% | No |
| ResMed| → RMD | United States | $15.1bn | 0.051% | -0.037 pp | -0.031 pp | +6.2% | No |
| Idexx Laboratories → IDXX | United States | $18.4bn | 0.062% | -0.062 pp | -0.031 pp | +13.4% | No |
| Intuitive Surgical → ISRG | United States | $19.8bn | 0.067% | -0.045 pp | -0.025 pp | +20.7% | No |
| Revvity → RVTY | United States | $9.6bn | 0.032% | -0.019 pp | -0.018 pp | +8.2% | No |
| Edwards Lifesciences → EW | United States | $10.3bn | 0.035% | -0.023 pp | -0.016 pp | +16.6% | 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.