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

Information Technology21.1%+2.55 ppHealth Care19.3%+2.41 ppCommunication Services5.2%+1.68 ppMaterials3.1%+0.58 ppConsumer Staples9.2%+0.20 ppReal Estate3.6%-0.03 ppUtilities3.7%-0.06 ppConsumer Discretionary6.5%-0.72 ppEnergy2.5%-1.60 ppIndustrials11.5%-2.34 ppFinancials14.1%-2.68 pp

2 · Industry

Inside Health Care

Pharmaceuticals6.36%+0.62 ppBiotechnology3.09%+0.60 ppManaged Health Care2.45%+0.51 ppHealth Care Equipment3.59%+0.40 ppLife Sciences Tools & Services2.01%+0.20 ppHealth Care Services1.07%+0.14 ppHealth Care Supplies0.12%-0.05 ppHealth Care Facilities0.21%-0.03 ppHealth Care Distributors0.37%+0.02 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology3.09%+0.599 pp
Concentrated

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

View all contributions →
Biotechnology · weight
3.09%
Industry change · 12M
+0.60 pp
Biotechnology · contribution
+0.599 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 2020 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Amgen →
AMGN
United States$141.1bn0.790%+0.156 pp+0.168 pp+37.4%Yes
Gilead Sciences →
GILD
United States$106.1bn0.594%+0.200 pp+0.132 pp+34.1%Yes
Vertex Pharmaceuticals →
VRTX
United States$65.1bn0.364%+0.076 pp+0.124 pp+48.7%Yes
Regeneron Pharmaceuticals →
REGN
United States$49.4bn0.277%+0.120 pp+0.097 pp+53.3%Yes
AbbVie →
ABBV
United States$121.6bn0.680%+0.089 pp+0.028 pp+9.7%Yes
Incyte →
INCY
United States$21.2bn0.118%+0.041 pp+0.027 pp+27.2%Yes
Biogen →
BIIB
United States$48.4bn0.271%+0.032 pp+0.023 pp+29.5%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.