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

Universe›Health Care›Health Care Equipment›Health Care Equipment

1 · Sector

Weight and 12M allocation change

Health Care18.1%+1.27 pp Utilities3.8%+0.64 pp Information Technology17.5%+0.52 pp Real Estate3.7%+0.46 pp Materials2.5%+0.41 pp Communication Services3.6%+0.24 pp Consumer Discretionary7.1%+0.12 pp Energy4.3%-0.09 pp Consumer Staples8.8%-0.25 pp Industrials14.2%-1.17 pp Financials16.5%-2.16 pp

2 · Industry

Inside Health Care

Biotechnology2.84%-0.58 pp Pharmaceuticals6.10%+0.56 pp Health Care Equipment3.33%+0.45 pp Health Care Services1.01%+0.35 pp Life Sciences Tools & Services1.82%+0.32 pp Managed Health Care2.16%+0.22 pp Health Care Distributors0.39%-0.10 pp Health Care Facilities0.28%+0.07 pp Health Care Supplies0.14%-0.00 pp Health Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Health Care Equipment

Health Care Equipment3.33%+0.448 pp

Broad

The gain is shared across much of the industry.

View all contributions →

Health Care Equipment · weight

3.33%

Industry change · 12M

+0.45 pp

Health Care Equipment · contribution

+0.448 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 2019 · 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	$136.3bn	0.790%	+0.358 pp	+0.159 pp	+31.0%	Yes
Boston Scientific → BSX	United States	$55.6bn	0.322%	+0.149 pp	+0.098 pp	+47.2%	Yes
Medtronic → MDT	United States	$121.5bn	0.705%	+0.269 pp	+0.057 pp	+15.3%	Yes
Stryker Corporation → SYK	United States	$70.3bn	0.407%	+0.189 pp	+0.043 pp	+17.6%	Yes
Becton Dickinson → BDX	United States	$51.3bn	0.298%	+0.125 pp	+0.026 pp	+13.5%	Yes
Intuitive Surgical → ISRG	United States	$20.9bn	0.121%	+0.054 pp	+0.025 pp	+28.4%	Yes
Edwards Lifesciences → EW	United States	$11.7bn	0.068%	+0.030 pp	+0.012 pp	+26.6%	Yes
Revvity → RVTY	United States	$10.4bn	0.060%	+0.028 pp	+0.010 pp	+23.8%	Yes
Idexx Laboratories → IDXX	United States	$18.1bn	0.105%	+0.047 pp	+0.007 pp	+12.7%	Yes
Zimmer Biomet → ZBH	United States	$24.6bn	0.143%	+0.066 pp	+0.005 pp	+7.7%	Yes
ResMed\| → RMD	United States	$14.7bn	0.085%	+0.032 pp	+0.003 pp	+9.1%	Yes
Baxter International → BAX	United States	$38.3bn	0.222%	+0.101 pp	+0.003 pp	+11.7%	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.