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%+7.76 ppHealth Care16.6%+6.64 ppFinancials15.9%+6.02 ppIndustrials13.4%+5.24 ppConsumer Staples9.3%+4.44 ppCommunication Services5.4%+3.44 ppReal Estate4.0%+2.04 ppUtilities3.9%+2.00 ppMaterials2.9%+1.73 ppEnergy3.6%+0.89 ppConsumer Discretionary7.2%-40.20 pp

2 · Industry

Inside Health Care

Pharmaceuticals5.35%+2.06 ppHealth Care Equipment3.55%+1.75 ppLife Sciences Tools & Services1.79%+0.86 ppManaged Health Care1.88%+0.63 ppBiotechnology2.36%+0.60 ppHealth Care Services0.95%+0.57 ppHealth Care Distributors0.35%+0.12 ppHealth Care Facilities0.22%+0.07 ppHealth Care Supplies0.10%-0.01 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology2.36%+0.603 pp
Concentrated

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

View all contributions →
Biotechnology · weight
2.36%
Industry change · 12M
+0.60 pp
Biotechnology · contribution
+0.603 pp
Company participation
29%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Amgen →
AMGN
United States$125.1bn0.680%+0.088 pp+0.263 pp+7.6%Yes
Gilead Sciences →
GILD
United States$80.5bn0.438%-0.023 pp+0.121 pp-13.1%No
Vertex Pharmaceuticals →
VRTX
United States$46.3bn0.252%+0.004 pp+0.100 pp-2.4%Yes
AbbVie →
ABBV
United States$97.2bn0.529%-0.132 pp+0.059 pp-27.9%No
Incyte →
INCY
United States$17.6bn0.096%-0.002 pp+0.045 pp+10.7%No
Regeneron Pharmaceuticals →
REGN
United States$27.3bn0.148%-0.017 pp+0.025 pp-28.7%No
Biogen →
BIIB
United States$40.5bn0.220%-0.027 pp-0.009 pp-37.8%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.