MRK: Merck & Co., Inc. Historical Data
1991 Historical Chart
202620252024202320222021202020192018201720162015201420132012201120102009200820072006200520042003200220012000199919981997199619951994199319921991199019891988
Average
OPEN 18.984
CLOSE 19.0423
Low
LOW 13.02
High
HIGH 26.53
| DATE | OPEN | HIGH | LOW | CLOSE |
|---|---|---|---|---|
| 01/02/1991 | 14.18 | 14.27 | 14.15 | 14.21 |
| 01/03/1991 | 14.21 | 14.21 | 13.77 | 13.77 |
| 01/04/1991 | 13.66 | 13.71 | 13.44 | 13.54 |
| 01/07/1991 | 13.35 | 13.48 | 13.17 | 13.19 |
| 01/08/1991 | 13.25 | 13.3 | 13.14 | 13.23 |
| 01/09/1991 | 13.35 | 13.54 | 13.07 | 13.07 |
| 01/10/1991 | 13.17 | 13.25 | 13.13 | 13.25 |
| 01/11/1991 | 13.14 | 13.29 | 13.07 | 13.29 |
| 01/14/1991 | 13.02 | 13.23 | 13.02 | 13.17 |
| 01/15/1991 | 13.19 | 13.35 | 13.17 | 13.26 |
| 01/16/1991 | 13.29 | 13.53 | 13.26 | 13.47 |
| 01/17/1991 | 13.89 | 13.98 | 13.74 | 13.96 |
| 01/18/1991 | 13.96 | 14.08 | 13.86 | 14.06 |
| 01/21/1991 | 13.9 | 14.02 | 13.86 | 13.92 |
| 01/22/1991 | 13.96 | 14.09 | 13.89 | 13.92 |
| 01/23/1991 | 13.92 | 14.2 | 13.92 | 14.15 |
| 01/24/1991 | 14.18 | 14.39 | 14.18 | 14.27 |
| 01/25/1991 | 14.27 | 14.32 | 14.15 | 14.2 |
| 01/28/1991 | 14.18 | 14.24 | 14.15 | 14.18 |
| 01/29/1991 | 14.24 | 14.3 | 14.14 | 14.24 |
| 01/30/1991 | 14.21 | 14.62 | 14.18 | 14.56 |
| 01/31/1991 | 14.56 | 14.56 | 14.48 | 14.54 |
| 02/01/1991 | 14.45 | 14.84 | 14.42 | 14.63 |
| 02/04/1991 | 14.63 | 15.05 | 14.6 | 15.02 |
| 02/05/1991 | 15.05 | 15.29 | 14.96 | 15.26 |
| 02/06/1991 | 15.26 | 15.49 | 15.15 | 15.49 |
| 02/07/1991 | 15.49 | 15.52 | 15.17 | 15.17 |
| 02/08/1991 | 15.2 | 15.49 | 15.2 | 15.49 |
| 02/11/1991 | 15.55 | 15.99 | 15.51 | 15.94 |
| 02/12/1991 | 15.76 | 16 | 15.63 | 15.64 |
| 02/13/1991 | 15.57 | 15.73 | 15.51 | 15.67 |
| 02/14/1991 | 15.69 | 15.82 | 14.9 | 15.51 |
| 02/15/1991 | 15.64 | 16.21 | 15.57 | 16.21 |
| 02/19/1991 | 16.12 | 16.27 | 16.09 | 16.27 |
| 02/20/1991 | 16.05 | 16.12 | 15.99 | 16 |
| 02/21/1991 | 15.97 | 16.09 | 15.85 | 16.05 |
| 02/22/1991 | 15.97 | 16.52 | 15.97 | 16.17 |
| 02/25/1991 | 16.42 | 16.6 | 16.22 | 16.4 |
| 02/26/1991 | 16.24 | 16.3 | 16.05 | 16.17 |
| 02/27/1991 | 16.24 | 16.46 | 16.18 | 16.39 |
| 02/28/1991 | 16.42 | 16.46 | 16.22 | 16.22 |
| 03/01/1991 | 15.96 | 16.28 | 15.88 | 16.24 |
| 03/04/1991 | 16.22 | 16.57 | 16.17 | 16.36 |
| 03/05/1991 | 16.3 | 16.64 | 16.3 | 16.52 |
| 03/06/1991 | 16.58 | 16.6 | 16.39 | 16.42 |
| 03/07/1991 | 16.3 | 16.66 | 16.3 | 16.57 |
| 03/08/1991 | 16.58 | 17.07 | 16.54 | 16.78 |
| 03/11/1991 | 16.79 | 17.07 | 16.78 | 16.95 |
| 03/12/1991 | 16.95 | 17.1 | 16.72 | 16.76 |
| 03/13/1991 | 16.76 | 16.94 | 16.6 | 16.84 |
| 03/14/1991 | 16.95 | 17.31 | 16.93 | 17.13 |
| 03/15/1991 | 17.21 | 17.24 | 17 | 17.16 |
| 03/18/1991 | 17.03 | 17.18 | 16.63 | 16.82 |
| 03/19/1991 | 16.64 | 16.64 | 15.81 | 16.12 |
| 03/20/1991 | 16.2 | 16.52 | 16.17 | 16.48 |
| 03/21/1991 | 16.54 | 16.63 | 16.28 | 16.36 |
| 03/22/1991 | 16.37 | 16.51 | 16.3 | 16.48 |
| 03/25/1991 | 16.49 | 16.64 | 16.42 | 16.58 |
| 03/26/1991 | 16.55 | 17.18 | 16.54 | 17.18 |
| 03/27/1991 | 17.21 | 17.25 | 16.84 | 16.94 |
| 03/28/1991 | 16.94 | 16.95 | 16.72 | 16.76 |
| 04/01/1991 | 16.67 | 16.76 | 16.63 | 16.76 |
| 04/02/1991 | 16.84 | 17.28 | 16.82 | 17.28 |
| 04/03/1991 | 17.33 | 17.4 | 17.22 | 17.24 |
| 04/04/1991 | 17.24 | 17.43 | 17.1 | 17.22 |
| 04/05/1991 | 17.27 | 17.34 | 16.87 | 16.95 |
| 04/08/1991 | 16.95 | 17.28 | 16.93 | 17.16 |
| 04/09/1991 | 17.15 | 17.25 | 16.9 | 16.93 |
| 04/10/1991 | 16.91 | 17.01 | 16.84 | 16.94 |
| 04/11/1991 | 17.01 | 17.31 | 17.01 | 17.19 |
| 04/12/1991 | 17.3 | 17.36 | 17.12 | 17.24 |
| 04/15/1991 | 17.27 | 17.43 | 17.25 | 17.42 |
| 04/16/1991 | 17.48 | 17.95 | 17.42 | 17.95 |
| 04/17/1991 | 17.94 | 18.39 | 17.91 | 18.24 |
| 04/18/1991 | 18.1 | 18.18 | 17.97 | 18.06 |
| 04/19/1991 | 17.83 | 17.95 | 17.64 | 17.64 |
| 04/22/1991 | 17.55 | 17.61 | 17.4 | 17.46 |
| 04/23/1991 | 17.51 | 17.54 | 17.31 | 17.46 |
| 04/24/1991 | 17.48 | 17.52 | 17.24 | 17.36 |
| 04/25/1991 | 17.31 | 17.49 | 17.19 | 17.42 |
| 04/26/1991 | 17.27 | 17.46 | 17.22 | 17.31 |
| 04/29/1991 | 17.36 | 17.55 | 17.06 | 17.12 |
| 04/30/1991 | 17.24 | 17.31 | 17.07 | 17.12 |
| 05/01/1991 | 17.19 | 17.71 | 17.13 | 17.71 |
| 05/02/1991 | 17.79 | 17.95 | 17.79 | 17.94 |
| 05/03/1991 | 17.89 | 18.36 | 17.88 | 18.33 |
| 05/06/1991 | 18.22 | 18.55 | 18.18 | 18.49 |
| 05/07/1991 | 18.49 | 18.86 | 18.49 | 18.67 |
| 05/08/1991 | 18.67 | 18.74 | 18.56 | 18.59 |
| 05/09/1991 | 18.62 | 18.89 | 18.62 | 18.89 |
| 05/10/1991 | 18.97 | 19.09 | 18.77 | 18.8 |
| 05/13/1991 | 18.85 | 18.85 | 18.73 | 18.83 |
| 05/14/1991 | 18.7 | 18.74 | 18.55 | 18.62 |
| 05/15/1991 | 18.58 | 18.67 | 18.36 | 18.55 |
| 05/16/1991 | 18.64 | 18.8 | 18.56 | 18.8 |
| 05/17/1991 | 18.67 | 19.03 | 18.5 | 18.91 |
| 05/20/1991 | 18.94 | 19.26 | 18.91 | 19.01 |
| 05/21/1991 | 19.04 | 19.52 | 19.01 | 19.37 |
| 05/22/1991 | 19.41 | 19.43 | 19.19 | 19.32 |
| 05/23/1991 | 19.28 | 19.43 | 19.1 | 19.25 |
| 05/24/1991 | 19.2 | 19.31 | 19.07 | 19.2 |
| 05/28/1991 | 19.22 | 19.38 | 19.1 | 19.38 |
| 05/29/1991 | 19.38 | 19.46 | 19.26 | 19.31 |
| 05/30/1991 | 19.22 | 19.4 | 19.15 | 19.15 |
| 05/31/1991 | 19.1 | 19.16 | 18.62 | 18.89 |
| 06/03/1991 | 18.74 | 18.85 | 18.43 | 18.44 |
| 06/04/1991 | 18.43 | 18.62 | 18.43 | 18.53 |
| 06/05/1991 | 18.49 | 18.59 | 18.37 | 18.47 |
| 06/06/1991 | 18.46 | 18.49 | 18.25 | 18.25 |
| 06/07/1991 | 18.21 | 18.24 | 18.07 | 18.21 |
| 06/10/1991 | 18.1 | 18.31 | 18.1 | 18.15 |
| 06/11/1991 | 18.13 | 18.43 | 18.13 | 18.36 |
| 06/12/1991 | 18.31 | 18.5 | 18 | 18.49 |
| 06/13/1991 | 18.49 | 18.62 | 18.31 | 18.39 |
| 06/14/1991 | 18.5 | 18.79 | 18.43 | 18.79 |
| 06/17/1991 | 18.74 | 18.79 | 18.61 | 18.77 |
| 06/18/1991 | 18.73 | 18.79 | 18.49 | 18.5 |
| 06/19/1991 | 18.43 | 18.43 | 18.24 | 18.37 |
| 06/20/1991 | 18.33 | 18.47 | 18.31 | 18.41 |
| 06/21/1991 | 18.4 | 18.49 | 18.33 | 18.47 |
| 06/24/1991 | 18.39 | 18.39 | 18.15 | 18.18 |
| 06/25/1991 | 18.25 | 18.53 | 18.21 | 18.53 |
| 06/26/1991 | 18.55 | 18.79 | 18.49 | 18.68 |
| 06/27/1991 | 18.74 | 18.86 | 18.73 | 18.83 |
| 06/28/1991 | 18.74 | 18.79 | 18.37 | 18.44 |
| 07/01/1991 | 18.55 | 18.79 | 18.37 | 18.44 |
| 07/02/1991 | 18.91 | 19.01 | 18.89 | 18.97 |
| 07/03/1991 | 18.74 | 18.77 | 18.59 | 18.62 |
| 07/05/1991 | 18.56 | 18.79 | 18.55 | 18.68 |
| 07/08/1991 | 18.5 | 18.98 | 18.43 | 18.98 |
| 07/09/1991 | 18.91 | 18.95 | 18.61 | 18.73 |
| 07/10/1991 | 18.74 | 18.89 | 18.65 | 18.67 |
| 07/11/1991 | 18.73 | 18.83 | 18.67 | 18.8 |
| 07/12/1991 | 18.98 | 19.1 | 18.77 | 19.04 |
| 07/15/1991 | 19.06 | 19.46 | 19.03 | 19.32 |
| 07/16/1991 | 19.32 | 19.43 | 19.15 | 19.22 |
| 07/17/1991 | 19.17 | 19.37 | 19.17 | 19.19 |
| 07/18/1991 | 19.17 | 19.32 | 19.07 | 19.31 |
| 07/19/1991 | 19.29 | 19.38 | 19.16 | 19.25 |
| 07/22/1991 | 19.2 | 19.2 | 19.07 | 19.19 |
| 07/23/1991 | 19.22 | 19.32 | 19.07 | 19.1 |
| 07/24/1991 | 19.12 | 19.26 | 19.03 | 19.26 |
| 07/25/1991 | 19.29 | 19.56 | 19.22 | 19.56 |
| 07/26/1991 | 19.56 | 19.73 | 19.56 | 19.58 |
| 07/29/1991 | 19.58 | 19.85 | 19.5 | 19.82 |
| 07/30/1991 | 19.89 | 20.26 | 19.82 | 20.23 |
| 07/31/1991 | 20.23 | 20.47 | 20.22 | 20.46 |
| 08/01/1991 | 20.43 | 20.47 | 20.29 | 20.38 |
| 08/02/1991 | 20.41 | 20.46 | 20.23 | 20.28 |
| 08/05/1991 | 20.23 | 20.23 | 19.96 | 20.08 |
| 08/06/1991 | 20.11 | 20.41 | 19.93 | 20.35 |
| 08/07/1991 | 20.34 | 20.62 | 20.29 | 20.4 |
| 08/08/1991 | 20.29 | 20.44 | 20.22 | 20.26 |
| 08/09/1991 | 20.22 | 20.26 | 20.1 | 20.1 |
| 08/12/1991 | 20.07 | 20.22 | 20.02 | 20.17 |
| 08/13/1991 | 20.19 | 20.4 | 20.1 | 20.17 |
| 08/14/1991 | 20.28 | 20.28 | 20.04 | 20.08 |
| 08/15/1991 | 20.1 | 20.22 | 19.93 | 19.98 |
| 08/16/1991 | 19.98 | 20.1 | 19.67 | 19.85 |
| 08/19/1991 | 18.58 | 19.58 | 18.58 | 19.5 |
| 08/20/1991 | 19.65 | 19.68 | 19.38 | 19.5 |
| 08/21/1991 | 19.74 | 20.1 | 19.7 | 20.08 |
| 08/22/1991 | 20.1 | 20.16 | 19.99 | 20.05 |
| 08/23/1991 | 20.05 | 20.32 | 19.98 | 19.99 |
| 08/26/1991 | 19.99 | 20.05 | 19.92 | 19.96 |
| 08/27/1991 | 19.98 | 19.98 | 19.76 | 19.88 |
| 08/28/1991 | 19.89 | 20.32 | 19.86 | 20.32 |
| 08/29/1991 | 20.34 | 20.44 | 20.22 | 20.44 |
| 08/30/1991 | 20.31 | 20.38 | 20.1 | 20.16 |
| 09/03/1991 | 20.07 | 20.28 | 20.07 | 20.1 |
| 09/04/1991 | 20.1 | 20.14 | 19.92 | 19.98 |
| 09/05/1991 | 20.04 | 20.17 | 20.02 | 20.05 |
| 09/06/1991 | 20.11 | 20.26 | 19.98 | 20.2 |
| 09/09/1991 | 20.22 | 20.62 | 20.22 | 20.58 |
| 09/10/1991 | 20.65 | 20.69 | 20.38 | 20.47 |
| 09/11/1991 | 20.49 | 20.77 | 20.46 | 20.69 |
| 09/12/1991 | 20.78 | 20.8 | 20.59 | 20.77 |
| 09/13/1991 | 20.77 | 20.77 | 20.41 | 20.46 |
| 09/16/1991 | 20.43 | 20.63 | 20.35 | 20.59 |
| 09/17/1991 | 20.58 | 20.93 | 20.56 | 20.93 |
| 09/18/1991 | 20.81 | 20.93 | 20.77 | 20.89 |
| 09/19/1991 | 20.84 | 21.25 | 20.84 | 20.93 |
| 09/20/1991 | 21.05 | 21.17 | 20.95 | 21.05 |
| 09/23/1991 | 21.01 | 21.07 | 20.69 | 20.71 |
| 09/24/1991 | 20.71 | 20.86 | 20.44 | 20.86 |
| 09/25/1991 | 20.83 | 20.86 | 20.58 | 20.63 |
| 09/26/1991 | 20.58 | 20.75 | 20.46 | 20.65 |
| 09/27/1991 | 20.65 | 20.77 | 20.41 | 20.46 |
| 09/30/1991 | 20.46 | 20.74 | 20.4 | 20.68 |
| 10/01/1991 | 20.75 | 20.87 | 20.71 | 20.83 |
| 10/02/1991 | 20.81 | 20.87 | 20.59 | 20.71 |
| 10/03/1991 | 20.61 | 20.69 | 20.61 | 20.62 |
| 10/04/1991 | 20.59 | 20.68 | 20.52 | 20.58 |
| 10/07/1991 | 20.59 | 20.59 | 20.26 | 20.34 |
| 10/08/1991 | 20.34 | 20.44 | 20.32 | 20.35 |
| 10/09/1991 | 20.25 | 20.35 | 20.23 | 20.26 |
| 10/10/1991 | 20.25 | 20.32 | 20.14 | 20.26 |
| 10/11/1991 | 20.25 | 20.47 | 20.14 | 20.47 |
| 10/14/1991 | 20.43 | 20.47 | 20.14 | 20.47 |
| 10/15/1991 | 20.71 | 20.89 | 20.62 | 20.77 |
| 10/16/1991 | 20.77 | 20.89 | 20.69 | 20.77 |
| 10/17/1991 | 20.71 | 20.77 | 20.63 | 20.65 |
| 10/18/1991 | 20.71 | 20.98 | 20.68 | 20.98 |
| 10/21/1991 | 20.96 | 21.04 | 20.77 | 20.89 |
| 10/22/1991 | 20.89 | 21.05 | 20.63 | 20.74 |
| 10/23/1991 | 20.72 | 21.04 | 20.71 | 21.04 |
| 10/24/1991 | 21.02 | 21.07 | 20.81 | 21.05 |
| 10/25/1991 | 21.07 | 21.22 | 20.75 | 20.77 |
| 10/28/1991 | 20.84 | 21.34 | 20.77 | 21.34 |
| 10/29/1991 | 21.32 | 21.35 | 21.05 | 21.19 |
| 10/30/1991 | 21.17 | 21.23 | 20.95 | 21.16 |
| 10/31/1991 | 21.08 | 21.81 | 21.08 | 21.81 |
| 11/01/1991 | 21.72 | 21.95 | 21.54 | 21.65 |
| 11/04/1991 | 21.54 | 21.78 | 21.48 | 21.77 |
| 11/05/1991 | 21.78 | 22.12 | 21.77 | 21.93 |
| 11/06/1991 | 21.96 | 22.08 | 21.69 | 21.83 |
| 11/07/1991 | 21.84 | 21.84 | 21.36 | 21.83 |
| 11/08/1991 | 22.01 | 22.08 | 21.59 | 21.63 |
| 11/11/1991 | 21.56 | 21.66 | 21.53 | 21.53 |
| 11/12/1991 | 21.77 | 22.24 | 21.66 | 22.2 |
| 11/13/1991 | 22.15 | 22.65 | 22.02 | 22.65 |
| 11/14/1991 | 22.69 | 22.97 | 22.68 | 22.97 |
| 11/15/1991 | 22.93 | 22.96 | 21.77 | 21.77 |
| 11/18/1991 | 21.86 | 22.5 | 21.72 | 22.42 |
| 11/19/1991 | 22.15 | 22.23 | 21.69 | 22.07 |
| 11/20/1991 | 22.72 | 23.27 | 22.72 | 23.03 |
| 11/21/1991 | 22.8 | 23.08 | 22.72 | 22.96 |
| 11/22/1991 | 22.97 | 22.97 | 22.72 | 22.9 |
| 11/25/1991 | 22.85 | 23.2 | 22.72 | 23.08 |
| 11/26/1991 | 23.03 | 23.03 | 22.41 | 22.77 |
| 11/27/1991 | 22.75 | 22.91 | 22.68 | 22.85 |
| 11/29/1991 | 22.87 | 23.27 | 22.84 | 23.26 |
| 12/02/1991 | 22.96 | 23.56 | 22.91 | 23.54 |
| 12/03/1991 | 23.51 | 23.91 | 23.39 | 23.87 |
| 12/04/1991 | 23.85 | 24.03 | 23.6 | 23.93 |
| 12/05/1991 | 23.88 | 23.97 | 23.66 | 23.73 |
| 12/06/1991 | 23.56 | 24.03 | 23.54 | 23.99 |
| 12/09/1991 | 23.99 | 24.21 | 23.87 | 24.05 |
| 12/10/1991 | 24 | 24.15 | 23.79 | 23.96 |
| 12/11/1991 | 23.99 | 24.03 | 23.48 | 23.75 |
| 12/12/1991 | 23.76 | 23.87 | 23.51 | 23.72 |
| 12/13/1991 | 23.91 | 23.97 | 23.66 | 23.67 |
| 12/16/1991 | 23.67 | 23.97 | 23.61 | 23.84 |
| 12/17/1991 | 23.81 | 24.08 | 23.72 | 24.05 |
| 12/18/1991 | 23.97 | 24.21 | 23.96 | 24.17 |
| 12/19/1991 | 24.09 | 24.45 | 24.03 | 24.39 |
| 12/20/1991 | 24.57 | 24.69 | 24.4 | 24.58 |
| 12/23/1991 | 24.57 | 25.46 | 24.57 | 25.42 |
| 12/24/1991 | 25.37 | 25.58 | 25.22 | 25.24 |
| 12/26/1991 | 25.24 | 26.18 | 25.21 | 26.07 |
| 12/27/1991 | 26.03 | 26.34 | 25.86 | 26.28 |
| 12/30/1991 | 26.24 | 26.49 | 26.16 | 26.42 |
| 12/31/1991 | 26.39 | 26.53 | 26.07 | 26.46 |