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

Materials32.5%+2.94 pp Financials8.1%+0.31 pp Consumer Staples5.2%+0.08 pp Industrials7.1%-0.13 pp Information Technology20.9%-0.23 pp Utilities1.9%-0.23 pp Energy2.1%-0.24 pp Communication Services1.8%-0.26 pp Real Estate1.8%-0.29 pp Consumer Discretionary8.2%-0.72 pp Health Care10.3%-1.24 pp

2 · Industry

Inside Health Care

Health Care Equipment1.93%-0.40 pp Managed Health Care1.27%-0.23 pp Life Sciences Tools & Services1.02%-0.22 pp Pharmaceuticals3.49%-0.22 pp Health Care Services0.40%-0.10 pp Health Care Facilities0.16%-0.04 pp Health Care Supplies0.11%-0.03 pp Biotechnology1.63%-0.02 pp Health Care Distributors0.29%-0.02 pp Health Care Technology0.02%+0.02 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology1.63%-0.019 pp

Concentrated

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

View all contributions →

Biotechnology · weight

1.63%

Industry change · 12M

-0.02 pp

Biotechnology · contribution

-0.019 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jun 2024 · 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
Gilead Sciences → GILD	United States	$85.5bn	0.160%	-0.093 pp	-0.062 pp	-7.2%	No
Amgen → AMGN	United States	$167.6bn	0.314%	-0.108 pp	+0.040 pp	+45.1%	No
Biogen → BIIB	United States	$33.8bn	0.063%	-0.024 pp	-0.032 pp	-18.6%	No
Regeneron Pharmaceuticals → REGN	United States	$98.7bn	0.185%	-0.066 pp	+0.029 pp	+46.3%	No
Moderna → MRNA	United States	$45.5bn	0.085%	-0.028 pp	-0.022 pp	-2.3%	No
AbbVie → ABBV	United States	$302.9bn	0.568%	-0.324 pp	+0.018 pp	+32.5%	No
Vertex Pharmaceuticals → VRTX	United States	$121.0bn	0.227%	-0.073 pp	+0.017 pp	+33.2%	No
Incyte → INCY	United States	$13.6bn	0.026%	-0.010 pp	-0.007 pp	-2.6%	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.