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 Technology17.9%+7.83 ppFinancials16.1%+6.61 ppHealth Care16.1%+6.02 ppIndustrials13.5%+5.47 ppConsumer Staples9.2%+4.37 ppCommunication Services5.3%+3.38 ppMaterials3.3%+2.18 ppUtilities4.0%+2.09 ppReal Estate3.9%+2.04 ppEnergy3.6%+0.96 ppConsumer Discretionary7.1%-40.93 pp

2 · Industry

Inside Health Care

Pharmaceuticals5.24%+1.87 ppHealth Care Equipment3.42%+1.56 ppLife Sciences Tools & Services1.79%+0.84 ppBiotechnology2.32%+0.57 ppHealth Care Services0.94%+0.55 ppManaged Health Care1.70%+0.46 ppHealth Care Distributors0.35%+0.12 ppHealth Care Facilities0.22%+0.06 ppHealth Care Supplies0.10%-0.01 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology2.32%+0.566 pp
Concentrated

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

View all contributions →
Biotechnology · weight
2.32%
Industry change · 12M
+0.57 pp
Biotechnology · contribution
+0.566 pp
Company participation
14%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2019 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Amgen →
AMGN
United States$116.0bn0.616%+0.010 pp+0.189 pp-3.8%No
AbbVie →
ABBV
United States$112.0bn0.595%+0.015 pp+0.138 pp-15.7%Yes
Gilead Sciences →
GILD
United States$80.3bn0.426%-0.037 pp+0.107 pp-14.8%No
Vertex Pharmaceuticals →
VRTX
United States$43.5bn0.231%-0.022 pp+0.074 pp-12.1%No
Incyte →
INCY
United States$16.0bn0.085%-0.013 pp+0.038 pp+7.5%No
Regeneron Pharmaceuticals →
REGN
United States$26.1bn0.138%-0.020 pp+0.017 pp-31.3%No
Biogen →
BIIB
United States$42.9bn0.228%-0.016 pp+0.001 pp-34.1%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.