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 Technology19.1%+9.77 ppFinancials16.2%+6.99 ppHealth Care16.6%+6.66 ppIndustrials13.4%+5.77 ppConsumer Staples8.8%+3.81 ppCommunication Services5.2%+3.23 ppUtilities3.9%+1.91 ppMaterials3.1%+1.72 ppReal Estate3.6%+1.56 ppEnergy3.2%+0.74 ppConsumer Discretionary6.9%-42.15 pp

2 · Industry

Inside Health Care

Pharmaceuticals5.40%+2.03 ppHealth Care Equipment3.38%+1.56 ppLife Sciences Tools & Services1.77%+0.80 ppBiotechnology2.38%+0.72 ppHealth Care Services0.99%+0.66 ppManaged Health Care1.95%+0.65 ppHealth Care Distributors0.34%+0.12 ppHealth Care Facilities0.23%+0.07 ppHealth Care Supplies0.12%+0.04 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology2.38%+0.718 pp
Concentrated

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

View all contributions →
Biotechnology · weight
2.38%
Industry change · 12M
+0.72 pp
Biotechnology · contribution
+0.718 pp
Company participation
14%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Amgen →
AMGN
United States$128.4bn0.633%-0.027 pp+0.240 pp+19.0%No
AbbVie →
ABBV
United States$119.8bn0.591%-0.022 pp+0.193 pp+6.7%No
Vertex Pharmaceuticals →
VRTX
United States$58.4bn0.288%+0.026 pp+0.127 pp+18.9%Yes
Gilead Sciences →
GILD
United States$80.0bn0.394%-0.026 pp+0.096 pp-6.3%No
Regeneron Pharmaceuticals →
REGN
United States$31.8bn0.157%+0.007 pp+0.024 pp-21.3%No
Incyte →
INCY
United States$15.7bn0.078%-0.017 pp+0.021 pp-9.3%No
Biogen →
BIIB
United States$48.5bn0.239%-0.042 pp+0.018 pp-19.5%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.