| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 13 Aug 1991 | GBX | 139 | 145 | 139 | 144 | 144 | +6 (+4.35%) | 377,354 |
| 12 Aug 1991 | GBX | 136 | 138 | 135 | 138 | 138 | +1 (+0.73%) | 270,803 |
| 9 Aug 1991 | GBX | 134 | 137 | 134 | 137 | 137 | +3 (+2.24%) | 207,052 |
| 8 Aug 1991 | GBX | 136 | 136 | 133 | 134 | 134 | +2 (+1.52%) | 170,855 |
| 7 Aug 1991 | GBX | 131 | 136 | 131 | 132 | 132 | +2.125 (+1.64%) | 364,094 |
| 6 Aug 1991 | GBX | 129 | 132 | 128 | 129.875 | 129.875 | +0.375 (+0.29%) | 2,923,720 |
| 5 Aug 1991 | GBX | 130 | 136 | 127.5 | 129.5 | 129.5 | -3.5 (-2.63%) | 1,112,500 |
| 2 Aug 1991 | GBX | 133.5 | 136 | 132 | 133 | 133 | +1 (+0.76%) | 931,221 |
| 1 Aug 1991 | GBX | 131.375 | 134 | 131 | 132 | 132 | -3 (-2.22%) | 664,216 |
| 31 Jul 1991 | GBX | 134 | 135 | 132 | 135 | 135 | +4 (+3.05%) | 98,013 |
| 30 Jul 1991 | GBX | 135 | 136 | 129.5 | 131 | 131 | -4 (-2.96%) | 3,443,040 |
| 29 Jul 1991 | GBX | 136 | 136 | 135 | 135 | 135 | -1 (-0.74%) | 204,420 |
| 26 Jul 1991 | GBX | 133 | 136 | 133 | 136 | 136 | +2 (+1.49%) | 1,342,086 |
| 25 Jul 1991 | GBX | 137 | 137 | 133 | 134 | 134 | -2 (-1.47%) | 265,862 |
| 24 Jul 1991 | GBX | 136 | 136 | 135 | 136 | 136 | +1.5 (+1.12%) | 1,366,559 |
| 23 Jul 1991 | GBX | 136 | 136 | 133 | 134.5 | 134.5 | +2.5 (+1.89%) | 960,626 |
| 22 Jul 1991 | GBX | 133 | 133.5 | 131 | 132 | 132 | -2.5 (-1.86%) | 1,883,143 |
| 19 Jul 1991 | GBX | 136 | 136 | 134.5 | 134.5 | 134.5 | +0.5 (+0.37%) | 233,365 |
| 18 Jul 1991 | GBX | 135 | 136 | 133 | 134 | 134 | +1.5 (+1.13%) | 123,589 |
| 17 Jul 1991 | GBX | 134 | 136 | 132.5 | 132.5 | 132.5 | -1.5 (-1.12%) | 1,824,444 |
| 16 Jul 1991 | GBX | 131 | 136 | 131 | 134 | 134 | +4 (+3.08%) | 396,433 |
| 15 Jul 1991 | GBX | 132 | 132 | 129 | 130 | 130 | +2.25 (+1.76%) | 1,290,888 |
| 12 Jul 1991 | GBX | 127 | 130 | 127 | 127.75 | 127.75 | -1.625 (-1.26%) | 153,531 |
| 11 Jul 1991 | GBX | 128 | 130 | 128 | 129.375 | 129.375 | +1.375 (+1.07%) | 549,394 |
| 10 Jul 1991 | GBX | 128 | 128 | 125.875 | 128 | 128 | +5.5 (+4.49%) | 466,282 |
| 9 Jul 1991 | GBX | 124 | 128 | 122.5 | 122.5 | 122.5 | -1 (-0.81%) | 512,453 |
| 8 Jul 1991 | GBX | 123 | 125 | 122 | 123.5 | 123.5 | +0.5 (+0.41%) | 180,313 |
| 5 Jul 1991 | GBX | 124 | 126 | 122 | 123 | 123 | 0.0 (0.0%) | 251,875 |
| 4 Jul 1991 | GBX | 128 | 128 | 123 | 123 | 123 | -2 (-1.60%) | 1,269,436 |
| 3 Jul 1991 | GBX | 126 | 126 | 125 | 125 | 125 | -3.5 (-2.72%) | 303,544 |
