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 Technology16.9%+0.89 ppFinancials18.6%+0.16 ppHealth Care16.8%+0.07 ppUtilities3.2%+0.02 ppMaterials2.1%-0.02 ppReal Estate3.2%-0.05 ppConsumer Discretionary7.0%-0.09 ppCommunication Services3.3%-0.14 ppIndustrials15.3%-0.24 ppEnergy4.4%-0.28 ppConsumer Staples9.0%-0.33 pp

2 · Industry

Inside Health Care

Health Care Equipment2.88%+0.05 ppPharmaceuticals5.54%+0.04 ppHealth Care Services0.66%-0.04 ppBiotechnology3.42%+0.04 ppHealth Care Distributors0.49%-0.02 ppHealth Care Supplies0.14%+0.01 ppLife Sciences Tools & Services1.51%-0.01 ppManaged Health Care1.95%-0.00 ppHealth Care Facilities0.21%+0.00 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology3.42%+0.039 pp
Concentrated

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

View all contributions →
Biotechnology · weight
3.42%
Industry change · 12M
+0.04 pp
Biotechnology · contribution
+0.039 pp
Company participation
43%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 2018 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
AbbVie →
ABBV
United States$183.9bn1.102%+0.080 pp+0.080 pp+3.2%Yes
Biogen →
BIIB
United States$61.1bn0.366%-0.053 pp-0.053 pp-16.9%No
Amgen →
AMGN
United States$132.4bn0.794%+0.023 pp+0.023 pp-0.5%Yes
Regeneron Pharmaceuticals →
REGN
United States$30.1bn0.180%-0.016 pp-0.016 pp-12.6%No
Vertex Pharmaceuticals →
VRTX
United States$42.2bn0.253%+0.012 pp+0.012 pp-0.5%Yes
Gilead Sciences →
GILD
United States$103.1bn0.618%-0.006 pp-0.006 pp-6.1%No
Incyte →
INCY
United States$18.0bn0.108%-0.001 pp-0.001 pp-5.7%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.