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 Technology18.1%+8.41 ppFinancials16.5%+6.93 ppHealth Care16.8%+6.27 ppIndustrials13.7%+6.24 ppConsumer Staples8.8%+3.60 ppCommunication Services5.3%+3.22 ppMaterials3.2%+1.80 ppUtilities3.7%+1.59 ppReal Estate3.6%+1.58 ppEnergy3.4%+1.00 ppConsumer Discretionary7.0%-40.65 pp

2 · Industry

Inside Health Care

Pharmaceuticals5.23%+1.57 ppHealth Care Equipment3.30%+1.42 ppBiotechnology2.62%+0.86 ppLife Sciences Tools & Services1.76%+0.78 ppManaged Health Care2.06%+0.71 ppHealth Care Services1.06%+0.67 ppHealth Care Distributors0.35%+0.12 ppHealth Care Facilities0.24%+0.07 ppHealth Care Supplies0.13%+0.06 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology2.62%+0.864 pp
Broad

The gain is shared across much of the industry.

View all contributions →
Biotechnology · weight
2.62%
Industry change · 12M
+0.86 pp
Biotechnology · contribution
+0.864 pp
Company participation
86%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Amgen →
AMGN
United States$139.5bn0.703%+0.022 pp+0.262 pp+16.1%Yes
AbbVie →
ABBV
United States$129.7bn0.654%+0.125 pp+0.182 pp-1.7%Yes
Vertex Pharmaceuticals →
VRTX
United States$57.0bn0.287%+0.036 pp+0.134 pp+22.7%Yes
Gilead Sciences →
GILD
United States$85.1bn0.429%-0.009 pp+0.119 pp-3.0%No
Regeneron Pharmaceuticals →
REGN
United States$34.7bn0.175%+0.026 pp+0.061 pp+0.9%Yes
Incyte →
INCY
United States$20.3bn0.102%+0.006 pp+0.057 pp+46.6%Yes
Biogen →
BIIB
United States$54.1bn0.273%+0.052 pp+0.049 pp-10.2%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.