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›Biotechnology›Biotechnology

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 Biotechnology

Biotechnology2.84%-0.582 pp

Concentrated

Most of this industry's losses came from a few companies.

View all contributions →

Biotechnology · weight

2.84%

Industry change · 12M

-0.58 pp

Biotechnology · contribution

-0.582 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
AbbVie → ABBV	United States	$116.9bn	0.678%	+0.206 pp	-0.425 pp	-28.6%	Yes
Gilead Sciences → GILD	United States	$82.9bn	0.481%	+0.172 pp	-0.137 pp	-14.8%	Yes
Amgen → AMGN	United States	$118.3bn	0.686%	+0.245 pp	-0.108 pp	+6.5%	Yes
Regeneron Pharmaceuticals → REGN	United States	$40.5bn	0.235%	+0.120 pp	+0.054 pp	+34.4%	Yes
Vertex Pharmaceuticals → VRTX	United States	$48.3bn	0.280%	+0.126 pp	+0.027 pp	+13.7%	Yes
Biogen → BIIB	United States	$64.5bn	0.374%	+0.151 pp	+0.008 pp	+13.5%	Yes
Incyte → INCY	United States	$18.5bn	0.107%	+0.062 pp	-0.001 pp	+1.3%	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.