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 Discretionary11.0%+3.01 ppEnergy3.9%+1.57 ppHealth Care17.5%+1.30 ppConsumer Staples7.7%+0.79 ppUtilities3.4%+0.46 ppIndustrials10.1%+0.13 ppReal Estate3.2%-0.06 ppMaterials3.1%-0.11 ppCommunication Services3.2%-0.50 ppFinancials12.4%-0.81 ppInformation Technology24.5%-5.78 pp

2 · Industry

Inside Health Care

Pharmaceuticals5.55%+0.89 ppManaged Health Care2.57%+0.50 ppBiotechnology2.81%+0.44 ppHealth Care Equipment2.88%-0.34 ppLife Sciences Tools & Services1.98%-0.32 ppHealth Care Supplies0.12%-0.17 ppHealth Care Services0.94%+0.15 ppHealth Care Distributors0.41%+0.14 ppHealth Care Facilities0.23%-0.01 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology2.81%+0.442 pp
Concentrated

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

View all contributions →
Biotechnology · weight
2.81%
Industry change · 12M
+0.44 pp
Biotechnology · contribution
+0.442 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2022 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
AbbVie →
ABBV
United States$285.0bn0.967%+0.117 pp+0.279 pp+45.3%Yes
Moderna →
MRNA
United States$67.6bn0.229%+0.044 pp-0.253 pp-50.1%Yes
Amgen →
AMGN
United States$152.8bn0.519%+0.059 pp+0.140 pp+48.6%Yes
Vertex Pharmaceuticals →
VRTX
United States$81.2bn0.276%+0.017 pp+0.115 pp+69.3%Yes
Gilead Sciences →
GILD
United States$110.2bn0.374%+0.089 pp+0.082 pp+33.5%Yes
Regeneron Pharmaceuticals →
REGN
United States$70.6bn0.240%+0.044 pp+0.038 pp+18.1%Yes
Biogen →
BIIB
United States$43.9bn0.149%+0.048 pp+0.032 pp+29.5%Yes
Incyte →
INCY
United States$17.7bn0.060%+0.004 pp+0.010 pp+17.6%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.