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 Technology27.5%+27.47 ppHealth Care16.1%+16.09 ppIndustrials11.8%+11.83 ppConsumer Discretionary7.3%+7.33 ppConsumer Staples7.0%+6.99 ppCommunication Services4.3%+4.28 ppMaterials3.2%+3.15 ppReal Estate3.1%+3.13 ppUtilities3.0%+2.99 ppEnergy2.3%+2.34 ppFinancials14.3%-85.61 pp

2 · Industry

Inside Health Care

Pharmaceuticals4.62%+4.62 ppHealth Care Equipment3.09%+3.08 ppBiotechnology2.51%+2.51 ppLife Sciences Tools & Services2.28%+2.27 ppManaged Health Care1.92%+1.91 ppHealth Care Services0.82%+0.82 ppHealth Care Supplies0.31%+0.31 ppHealth Care Distributors0.28%+0.28 ppHealth Care Facilities0.27%+0.27 ppHealth Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Biotechnology

Biotechnology2.51%+2.510 pp
Broad

The gain is shared across much of the industry.

View all contributions →
Biotechnology · weight
2.51%
Industry change · 12M
+2.51 pp
Biotechnology · contribution
+2.510 pp
Company participation
38%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2021 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
AbbVie →
ABBV
United States$190.6bn0.669%-0.033 pp+0.669 pp+29.3%No
Moderna →
MRNA
United States$155.3bn0.545%+0.545 pp+0.545 pp+444.0%Yes
Amgen →
AMGN
United States$120.8bn0.424%-0.070 pp+0.423 pp-13.9%No
Gilead Sciences →
GILD
United States$87.6bn0.307%+0.003 pp+0.307 pp+15.4%Yes
Regeneron Pharmaceuticals →
REGN
United States$56.9bn0.200%+0.014 pp+0.199 pp+8.1%Yes
Vertex Pharmaceuticals →
VRTX
United States$47.1bn0.165%-0.019 pp+0.165 pp-33.3%No
Biogen →
BIIB
United States$42.2bn0.148%-0.036 pp+0.148 pp-0.2%No
Incyte →
INCY
United States$15.2bn0.053%-0.012 pp+0.053 pp-23.4%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.