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

Consumer Discretionary47.4%+40.34 pp Materials1.1%-1.02 pp Utilities1.9%-1.24 pp Real Estate1.9%-1.31 pp Communication Services1.9%-1.52 pp Energy2.7%-2.03 pp Consumer Staples4.8%-4.53 pp Information Technology10.1%-5.91 pp Health Care9.9%-6.82 pp Industrials8.2%-7.41 pp Financials9.9%-8.55 pp

2 · Industry

Inside Health Care

Pharmaceuticals3.30%-2.20 pp Biotechnology1.76%-1.62 pp Health Care Equipment1.80%-1.03 pp Managed Health Care1.25%-0.70 pp Life Sciences Tools & Services0.93%-0.58 pp Health Care Services0.38%-0.32 pp Health Care Distributors0.23%-0.28 pp Health Care Facilities0.15%-0.05 pp Health Care Supplies0.11%-0.03 pp Health Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology1.76%-1.623 pp

Concentrated

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

View all contributions →

Biotechnology · weight

1.76%

Industry change · 12M

-1.62 pp

Biotechnology · contribution

-1.623 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Aug 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
AbbVie → ABBV	United States	$145.3bn	0.469%	-0.484 pp	-0.553 pp	-12.7%	No
Amgen → AMGN	United States	$129.3bn	0.417%	-0.304 pp	-0.353 pp	+9.8%	No
Gilead Sciences → GILD	United States	$98.2bn	0.317%	-0.215 pp	-0.307 pp	-8.3%	No
Biogen → BIIB	United States	$71.2bn	0.230%	-0.147 pp	-0.190 pp	+1.6%	No
Vertex Pharmaceuticals → VRTX	United States	$47.1bn	0.152%	-0.086 pp	-0.089 pp	+10.5%	No
Regeneron Pharmaceuticals → REGN	United States	$38.2bn	0.123%	-0.048 pp	-0.073 pp	+10.9%	No
Incyte → INCY	United States	$15.7bn	0.051%	-0.037 pp	-0.058 pp	-18.1%	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.