VRTX: Vertex Pharmaceuticals Incorporated Historical Data
1991 Historical Chart
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Average
OPEN 6.1434
CLOSE 6.1456
Low
LOW 4.1875
High
HIGH 8
| DATE | OPEN | HIGH | LOW | CLOSE |
|---|---|---|---|---|
| 07/24/1991 | 4.5625 | 4.625 | 4.5 | 4.5 |
| 07/25/1991 | 4.5 | 4.625 | 4.5 | 4.5625 |
| 07/26/1991 | 4.625 | 4.625 | 4.5 | 4.5 |
| 07/29/1991 | 4.625 | 4.625 | 4.5 | 4.625 |
| 07/30/1991 | 4.625 | 4.625 | 4.5 | 4.5 |
| 07/31/1991 | 4.625 | 4.625 | 4.5 | 4.5 |
| 08/01/1991 | 4.5 | 4.5625 | 4.5 | 4.5 |
| 08/02/1991 | 4.625 | 4.625 | 4.5625 | 4.5625 |
| 08/05/1991 | 4.625 | 4.625 | 4.5 | 4.625 |
| 08/06/1991 | 4.5625 | 4.625 | 4.5625 | 4.625 |
| 08/07/1991 | 4.625 | 4.625 | 4.5 | 4.5 |
| 08/08/1991 | 4.625 | 4.625 | 4.5 | 4.5625 |
| 08/09/1991 | 4.5 | 4.625 | 4.5 | 4.5 |
| 08/12/1991 | 4.5 | 4.625 | 4.5 | 4.5 |
| 08/13/1991 | 4.625 | 4.625 | 4.5 | 4.5 |
| 08/14/1991 | 4.625 | 4.625 | 4.5625 | 4.625 |
| 08/15/1991 | 4.5 | 4.625 | 4.5 | 4.5 |
| 08/16/1991 | 4.625 | 4.625 | 4.5 | 4.5 |
| 08/19/1991 | 4.4375 | 4.5 | 4.1875 | 4.375 |
| 08/20/1991 | 4.375 | 4.4375 | 4.25 | 4.375 |
| 08/21/1991 | 4.4375 | 4.4375 | 4.3125 | 4.4375 |
| 08/22/1991 | 4.4375 | 4.5 | 4.3125 | 4.375 |
| 08/23/1991 | 4.5 | 4.5 | 4.3125 | 4.3125 |
| 08/26/1991 | 4.5 | 4.5625 | 4.3125 | 4.5625 |
| 08/27/1991 | 4.5625 | 4.6875 | 4.5 | 4.625 |
| 08/28/1991 | 4.625 | 4.6875 | 4.5 | 4.6875 |
| 08/29/1991 | 4.6875 | 4.9375 | 4.5625 | 4.9375 |
| 08/30/1991 | 4.9375 | 5.1875 | 4.8125 | 5.1875 |
| 09/03/1991 | 5.1875 | 5.5 | 5.125 | 5.125 |
| 09/04/1991 | 5.125 | 5.25 | 5 | 5 |
| 09/05/1991 | 5 | 5.1875 | 5 | 5 |
| 09/06/1991 | 5.125 | 5.125 | 5 | 5 |
| 09/09/1991 | 5 | 5.125 | 4.875 | 4.875 |
| 09/10/1991 | 5.0625 | 5.0625 | 4.875 | 5.0625 |
| 09/11/1991 | 4.875 | 5.125 | 4.875 | 5 |
| 09/12/1991 | 5.25 | 5.3125 | 5.0625 | 5.1875 |
| 09/13/1991 | 5.375 | 5.5625 | 5.375 | 5.5625 |
| 09/16/1991 | 5.375 | 5.5625 | 5.375 | 5.5625 |
| 09/17/1991 | 5.5625 | 5.5625 | 5.4375 | 5.5 |
| 09/18/1991 | 5.5625 | 5.6875 | 5.5 | 5.6875 |
| 09/19/1991 | 5.5625 | 6.25 | 5.5625 | 6.1875 |
| 09/20/1991 | 6.25 | 6.875 | 6.1875 | 6.625 |
| 09/23/1991 | 6.5625 | 6.6875 | 6.375 | 6.5625 |
| 09/24/1991 | 6.375 | 6.5625 | 6.375 | 6.5625 |
| 09/25/1991 | 6.5625 | 7 | 6.375 | 7 |
| 09/26/1991 | 7 | 7.625 | 6.875 | 7.625 |
| 09/27/1991 | 7.625 | 7.625 | 7.375 | 7.375 |
| 09/30/1991 | 7.5 | 7.5 | 7.1875 | 7.375 |
| 10/01/1991 | 7.375 | 7.875 | 7.25 | 7.8125 |
| 10/02/1991 | 7.8125 | 7.8125 | 7.6875 | 7.8125 |
| 10/03/1991 | 7.8125 | 7.8125 | 7.375 | 7.375 |
| 10/04/1991 | 7.5 | 7.5 | 7.25 | 7.5 |
| 10/07/1991 | 7.5 | 7.5 | 6.625 | 6.625 |
| 10/08/1991 | 6.625 | 6.875 | 6.625 | 6.8125 |
| 10/09/1991 | 6.6875 | 6.875 | 6.6875 | 6.875 |
| 10/10/1991 | 6.875 | 6.875 | 6.6875 | 6.875 |
| 10/11/1991 | 6.875 | 6.875 | 6.75 | 6.8125 |
| 10/14/1991 | 6.875 | 6.875 | 6.75 | 6.875 |
| 10/15/1991 | 6.875 | 7.375 | 6.875 | 7.25 |
| 10/16/1991 | 7.4375 | 8 | 7.4375 | 7.8125 |
| 10/17/1991 | 7.5 | 7.625 | 7.4375 | 7.5 |
| 10/18/1991 | 7.4375 | 7.625 | 7.4375 | 7.625 |
| 10/21/1991 | 7.625 | 7.625 | 7 | 7.25 |
| 10/22/1991 | 7.25 | 7.25 | 6.75 | 6.75 |
| 10/23/1991 | 6.9375 | 7.5 | 6.8125 | 7.5 |
| 10/24/1991 | 7.625 | 7.875 | 7.25 | 7.5625 |
| 10/25/1991 | 7.5625 | 7.5625 | 7.25 | 7.25 |
| 10/28/1991 | 7.25 | 7.5 | 7.25 | 7.25 |
| 10/29/1991 | 7.4375 | 7.4375 | 7.25 | 7.25 |
| 10/30/1991 | 7.25 | 7.4375 | 7.25 | 7.4375 |
| 10/31/1991 | 7.4375 | 7.4375 | 7.25 | 7.25 |
| 11/01/1991 | 7.375 | 7.5625 | 7.3125 | 7.5625 |
| 11/04/1991 | 7.6875 | 7.6875 | 7.4375 | 7.6875 |
| 11/05/1991 | 7.6875 | 7.6875 | 7.4375 | 7.6875 |
| 11/06/1991 | 7.6875 | 7.75 | 7.4375 | 7.75 |
| 11/07/1991 | 7.75 | 7.8125 | 7.5625 | 7.625 |
| 11/08/1991 | 7.8125 | 7.8125 | 7.5625 | 7.75 |
| 11/11/1991 | 7.75 | 7.75 | 7.5625 | 7.5625 |
| 11/12/1991 | 7.5 | 7.6875 | 7.0625 | 7.25 |
| 11/13/1991 | 7.1875 | 7.1875 | 7 | 7.1875 |
| 11/14/1991 | 7.1875 | 7.1875 | 7 | 7.1875 |
| 11/15/1991 | 6.9375 | 7.0625 | 6.4375 | 6.4375 |
| 11/18/1991 | 6.375 | 6.4375 | 5.75 | 6 |
| 11/19/1991 | 6 | 6 | 5.625 | 5.75 |
| 11/20/1991 | 5.625 | 5.8125 | 5.625 | 5.75 |
| 11/21/1991 | 5.625 | 5.75 | 5.625 | 5.6875 |
| 11/22/1991 | 5.75 | 5.75 | 5.625 | 5.625 |
| 11/25/1991 | 5.75 | 5.75 | 5.5625 | 5.5625 |
| 11/26/1991 | 5.75 | 5.75 | 5.625 | 5.75 |
| 11/27/1991 | 5.625 | 5.875 | 5.625 | 5.8125 |
| 11/29/1991 | 5.8125 | 5.8125 | 5.625 | 5.6875 |
| 12/02/1991 | 5.75 | 5.75 | 5.5625 | 5.75 |
| 12/03/1991 | 5.75 | 5.8125 | 5.625 | 5.75 |
| 12/04/1991 | 5.8125 | 6.25 | 5.75 | 6.25 |
| 12/05/1991 | 6.25 | 6.8125 | 6.25 | 6.625 |
| 12/06/1991 | 6.75 | 7.375 | 6.5 | 7 |
| 12/09/1991 | 7.125 | 7.25 | 6.875 | 6.875 |
| 12/10/1991 | 7.125 | 7.125 | 6.875 | 6.9375 |
| 12/11/1991 | 6.875 | 7 | 6.875 | 7 |
| 12/12/1991 | 7 | 7 | 6.75 | 6.875 |
| 12/13/1991 | 7 | 7 | 6.75 | 6.75 |
| 12/16/1991 | 6.75 | 7 | 6.625 | 6.6875 |
| 12/17/1991 | 7 | 7 | 6.6875 | 6.8125 |
| 12/18/1991 | 6.875 | 7 | 6.75 | 7 |
| 12/19/1991 | 6.75 | 7 | 6.75 | 7 |
| 12/20/1991 | 7 | 7 | 6.75 | 6.75 |
| 12/23/1991 | 6.75 | 6.75 | 6.375 | 6.5625 |
| 12/24/1991 | 6.625 | 6.75 | 6.5 | 6.75 |
| 12/26/1991 | 6.75 | 6.875 | 6.625 | 6.75 |
| 12/27/1991 | 6.625 | 7.5 | 6.625 | 7.5 |
| 12/30/1991 | 7.625 | 8 | 7.375 | 7.5 |
| 12/31/1991 | 7.5 | 7.75 | 7.25 | 7.375 |