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 Technology18.4%+8.88 ppFinancials16.5%+7.33 ppHealth Care17.0%+6.61 ppIndustrials13.2%+6.00 ppConsumer Staples8.7%+3.60 ppCommunication Services5.3%+3.24 ppMaterials3.2%+1.83 ppUtilities3.7%+1.55 ppReal Estate3.5%+1.53 ppEnergy3.5%+1.16 ppConsumer Discretionary7.0%-41.73 pp

2 · Industry

Inside Health Care

Pharmaceuticals5.42%+1.76 ppHealth Care Equipment3.35%+1.46 ppLife Sciences Tools & Services1.80%+0.83 ppManaged Health Care2.11%+0.83 ppBiotechnology2.55%+0.78 ppHealth Care Services1.04%+0.69 ppHealth Care Distributors0.33%+0.11 ppHealth Care Facilities0.25%+0.09 ppHealth Care Supplies0.13%+0.06 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology2.55%+0.782 pp
Broad

The gain is shared across much of the industry.

View all contributions →
Biotechnology · weight
2.55%
Industry change · 12M
+0.78 pp
Biotechnology · contribution
+0.782 pp
Company participation
71%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Amgen →
AMGN
United States$143.2bn0.703%+0.086 pp+0.259 pp+27.6%Yes
AbbVie →
ABBV
United States$130.9bn0.642%+0.048 pp+0.147 pp+1.5%Yes
Vertex Pharmaceuticals →
VRTX
United States$56.3bn0.276%+0.045 pp+0.125 pp+32.1%Yes
Gilead Sciences →
GILD
United States$82.2bn0.403%-0.023 pp+0.114 pp+7.9%No
Regeneron Pharmaceuticals →
REGN
United States$35.3bn0.173%+0.035 pp+0.048 pp+0.5%Yes
Biogen →
BIIB
United States$53.5bn0.263%+0.035 pp+0.046 pp-1.4%Yes
Incyte →
INCY
United States$18.8bn0.092%+0.007 pp+0.044 pp+37.3%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.