| 1 | Biogen Inc. | 926.45 | 16.62 |
| 2 | Genzyme General | 752.48 | 18.43 |
| 3 | Charles River Labs International Inc. | 306.59 | 32.48 |
| 4 | Millennium Pharmactcls Inc. | 196.27 | 6.85 |
| 5 | Inverness Medical Technolgy | 170.34 | 35.33 |
| 6 | Sepracor Inc. | 85.25 | 276.21 |
| 7 | Vertex Pharmaceuticals Inc. | 78.13 | 54.52 |
| 8 | Bruker Daltonics Inc. | 76.60 | 18.41 |
| 9 | Praecis Pharmaceuticals Inc. | 61.19 | -0.53 |
| 10 | Alkermes Inc. | 51.95 | 140.84 |
| Data compiled by Compustat. |