Biotech HOLDRs: Top holdings

Top holdings
Company name% Net assets
Amgen, Inc.37.02%
Gilead Sciences, Inc.29.67%
Biogen Idec, Inc.13.96%
Genzyme Corporation7.35%
Life Technologies Corp4.34%
Shire4.13%
Human Genome Sciences2.12%
Alkermes, Inc.0.43%
Enzon Pharmaceuticals, Inc.0.28%
Celera Corporation0.26%
Percentage of holdings  99.56%

Top sectors
Sector name% Net assets
Healthcare 100.00%
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%
Energy 0.00%
 Percentage of sectors  100.00%



Holding data through 10/31/2009
Sector data through 10/31/2009
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