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

Consumer Discretionary49.1%+41.99 ppMaterials1.4%-0.75 ppUtilities2.0%-1.14 ppReal Estate2.0%-1.19 ppCommunication Services2.0%-1.50 ppEnergy2.4%-2.25 ppConsumer Staples5.0%-4.42 ppInformation Technology9.4%-6.70 ppHealth Care9.9%-6.83 ppIndustrials7.6%-7.95 ppFinancials9.2%-9.26 pp

2 · Industry

Inside Health Care

Pharmaceuticals3.38%-2.13 ppBiotechnology1.66%-1.72 ppHealth Care Equipment1.82%-1.01 ppManaged Health Care1.30%-0.65 ppLife Sciences Tools & Services0.96%-0.55 ppHealth Care Services0.33%-0.38 ppHealth Care Distributors0.22%-0.29 ppHealth Care Supplies0.08%-0.06 ppHealth Care Facilities0.16%-0.05 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology1.66%-1.719 pp
Concentrated

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

View all contributions →
Biotechnology · weight
1.66%
Industry change · 12M
-1.72 pp
Biotechnology · contribution
-1.719 pp
Company participation
57%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
AbbVie →
ABBV
United States$120.8bn0.398%-0.001 pp-0.624 pp-25.3%No
Amgen →
AMGN
United States$119.2bn0.393%-0.023 pp-0.377 pp+3.5%No
Gilead Sciences →
GILD
United States$90.6bn0.299%-0.001 pp-0.326 pp-13.8%No
Biogen →
BIIB
United States$67.3bn0.222%+0.014 pp-0.198 pp-4.0%Yes
Vertex Pharmaceuticals →
VRTX
United States$48.8bn0.161%+0.014 pp-0.080 pp+14.4%Yes
Regeneron Pharmaceuticals →
REGN
United States$40.3bn0.133%+0.025 pp-0.063 pp+17.1%Yes
Incyte →
INCY
United States$17.2bn0.057%+0.010 pp-0.052 pp-10.7%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.