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 Technology25.6%+25.56 ppHealth Care15.7%+15.64 ppIndustrials12.8%+12.82 ppConsumer Discretionary7.4%+7.37 ppConsumer Staples7.2%+7.19 ppCommunication Services4.6%+4.56 ppMaterials3.5%+3.50 ppUtilities3.1%+3.09 ppReal Estate3.1%+3.08 ppEnergy2.4%+2.35 ppFinancials14.7%-85.17 pp

2 · Industry

Inside Health Care

Pharmaceuticals4.61%+4.60 ppHealth Care Equipment3.14%+3.13 ppManaged Health Care2.10%+2.10 ppBiotechnology2.08%+2.07 ppLife Sciences Tools & Services2.00%+2.00 ppHealth Care Services0.92%+0.91 ppHealth Care Distributors0.29%+0.29 ppHealth Care Supplies0.28%+0.28 ppHealth Care Facilities0.25%+0.25 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology2.08%+2.073 pp
Concentrated

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

View all contributions →
Biotechnology · weight
2.08%
Industry change · 12M
+2.07 pp
Biotechnology · contribution
+2.073 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

May 2021 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
AbbVie →
ABBV
United States$199.9bn0.716%+0.336 pp+0.715 pp+28.3%Yes
Amgen →
AMGN
United States$136.7bn0.490%+0.230 pp+0.489 pp+6.5%Yes
Gilead Sciences →
GILD
United States$82.9bn0.297%+0.143 pp+0.296 pp-11.4%Yes
Vertex Pharmaceuticals →
VRTX
United States$54.0bn0.193%+0.083 pp+0.193 pp-27.5%Yes
Regeneron Pharmaceuticals →
REGN
United States$47.2bn0.169%+0.085 pp+0.169 pp-18.0%Yes
Biogen →
BIIB
United States$40.3bn0.144%+0.061 pp+0.144 pp-12.9%Yes
Incyte →
INCY
United States$18.4bn0.066%+0.031 pp+0.066 pp-17.8%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.