First Trust NYSE Arca Biotech Index: Top holdings

Top holdings
Company name% Net assets
Human Genome Sciences20.92%
Affymetrix, Inc.6.17%
Nektar Therapeutics, Inc.5.52%
Illumina, Inc.4.92%
Celgene Corporation4.40%
OSI Pharmaceuticals, Inc.4.33%
Life Technologies Corp4.28%
Alexion Pharmaceuticals, Inc.4.27%
Vertex Pharmaceuticals4.17%
Biogen Idec, Inc.4.05%
Percentage of holdings  63.03%

Top sectors
Sector name% Net assets
Healthcare 96.17%
Hardware 3.83%
Industrial Materials 0.00%
Media 0.00%
Software 0.00%
Telecommunication 0.00%
Utilities 0.00%
Business Service 0.00%
Consumer Goods 0.00%
Consumer Service 0.00%
 Percentage of sectors  100.00%



Holding data through 9/30/2009
Sector data through 9/30/2009
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