| Date | Symbol | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|---|
| 1991-11-26 | DOCK.N0000 | 0.000 | 30.000 | 30.000 | 30.000 | 22 |
| 1991-11-25 | DOCK.N0000 | 0.000 | 30.250 | 29.750 | 30.000 | 63 |
| 1991-11-22 | DOCK.N0000 | 0.000 | 30.000 | 25.000 | 30.000 | 42 |
| 1991-11-20 | DOCK.N0000 | 0.000 | 30.000 | 22.250 | 23.000 | 64 |
| 1991-07-25 | DOCK.N0000 | 0.000 | 21.500 | 21.500 | 21.500 | 0 |