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| Index Components as of: 11/20/09 |  | |
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| Company Name | Symbol | % Weighting |
|---|---|---|
| Human Genome Sciences | HGSI | 7.37% |
| Vertex Pharmaceuticals | VRTX | 5.94% |
| Cephalon Inc | CEPH | 5.89% |
| OSI Pharmaceuticals Inc | OSIP | 5.52% |
| Lifeline Systems Inc. | LIFE | 5.46% |
| Gilead Sciences | GILD | 5.40% |
| Celgene Corp | CELG | 5.23% |
| Alexion Pharmaceuticals Inc. | ALXN | 5.11% |
| Millipore Corp | MIL | 5.08% |
| Biogen Idec | BIIB | 5.06% |
| Applera Corp-Celera Genomics | CRA | 5.04% |
| Amgen Inc | AMGN | 4.85% |
| Nektar Therapeutics | NKTR | 4.83% |
| Amylin Pharmaceuticals Inc. | AMLN | 4.81% |
| Genzyme Corp | GENZ | 4.81% |
| Myriad Genetics Inc. | MYGN | 4.69% |
| N.A. | SQNM | 4.65% |
| InterMune Inc. | ITMN | 4.02% |
| Illumina Inc | ILMN | 3.30% |
| Affymetrix Inc | AFFX | 2.93% |
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