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 Discretionary11.2%+3.78 ppEnergy3.9%+1.03 ppHealth Care16.9%+0.53 ppUtilities3.4%+0.25 ppIndustrials10.1%+0.16 ppReal Estate3.3%+0.09 ppMaterials3.3%+0.07 ppConsumer Staples7.4%+0.03 ppCommunication Services3.4%-0.27 ppFinancials12.7%-1.04 ppInformation Technology24.5%-4.63 pp

2 · Industry

Inside Health Care

Biotechnology2.68%+0.35 ppPharmaceuticals5.20%+0.34 ppHealth Care Equipment2.94%-0.23 ppManaged Health Care2.37%+0.19 ppLife Sciences Tools & Services2.00%-0.11 ppHealth Care Distributors0.41%+0.10 ppHealth Care Supplies0.15%-0.09 ppHealth Care Services0.88%-0.02 ppHealth Care Facilities0.25%-0.00 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology2.68%+0.351 pp
Broad

The gain is shared across much of the industry.

View all contributions →
Biotechnology · weight
2.68%
Industry change · 12M
+0.35 pp
Biotechnology · contribution
+0.351 pp
Company participation
75%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 2023 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
AbbVie →
ABBV
United States$261.3bn0.894%-0.024 pp+0.080 pp+12.0%No
Vertex Pharmaceuticals →
VRTX
United States$82.9bn0.284%-0.000 pp+0.076 pp+32.9%Yes
Gilead Sciences →
GILD
United States$105.3bn0.360%+0.011 pp+0.071 pp+27.8%Yes
Regeneron Pharmaceuticals →
REGN
United States$71.3bn0.244%-0.006 pp+0.052 pp+24.6%Yes
Biogen →
BIIB
United States$41.9bn0.143%-0.001 pp+0.032 pp+28.7%Yes
Amgen →
AMGN
United States$134.7bn0.461%-0.052 pp+0.031 pp+14.6%No
Incyte →
INCY
United States$18.9bn0.065%+0.006 pp+0.010 pp+14.5%Yes
Moderna →
MRNA
United States$67.6bn0.231%+0.023 pp+0.001 pp+4.0%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.