| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 17 Jun 1991 | GBX | 155 | 155 | 153 | 153 | 153 | -3.5 (-2.24%) | 51,664 |
| 14 Jun 1991 | GBX | 156 | 158.5 | 155 | 156.5 | 156.5 | -0.5 (-0.32%) | 714,000 |
| 13 Jun 1991 | GBX | 157 | 160 | 157 | 157 | 157 | 0.0 (0.0%) | 52,535 |
| 12 Jun 1991 | GBX | 158 | 162 | 157 | 157 | 157 | -3 (-1.88%) | 906,766 |
| 11 Jun 1991 | GBX | 158 | 160 | 154 | 160 | 160 | +3 (+1.91%) | 122,235 |
| 10 Jun 1991 | GBX | 156 | 158 | 153 | 157 | 157 | +5 (+3.29%) | 207,248 |
| 7 Jun 1991 | GBX | 133 | 156 | 133 | 152 | 152 | +24 (+18.75%) | 2,814,053 |
| 6 Jun 1991 | GBX | 128 | 128 | 128 | 128 | 128 | -0.5 (-0.39%) | 80,000 |
| 5 Jun 1991 | GBX | 132 | 132 | 128.5 | 128.5 | 128.5 | +0.5 (+0.39%) | 19,610 |
| 4 Jun 1991 | GBX | 128 | 132 | 128 | 128 | 128 | -4 (-3.03%) | 466,868 |
| 3 Jun 1991 | GBX | 132 | 132 | 132 | 132 | 132 | +4 (+3.13%) | 108,379 |
| 31 May 1991 | GBX | 128 | 128 | 128 | 128 | 128 | -2 (-1.54%) | 15,918 |
| 30 May 1991 | GBX | 128 | 130 | 128 | 130 | 130 | +2 (+1.56%) | 677,000 |
| 29 May 1991 | GBX | 131 | 131 | 128 | 128 | 128 | -2 (-1.54%) | 31,898 |
| 28 May 1991 | GBX | 130 | 132 | 128 | 130 | 130 | -2 (-1.52%) | 196,625 |
| 23 May 1991 | GBX | 128 | 132 | 128 | 132 | 132 | +4 (+3.13%) | 14,155 |
| 22 May 1991 | GBX | 126 | 128 | 126 | 128 | 128 | +1 (+0.79%) | 32,500 |
| 21 May 1991 | GBX | 126 | 127 | 126 | 127 | 127 | +1 (+0.79%) | 10,128 |
| 20 May 1991 | GBX | 126 | 126 | 126 | 126 | 126 | +5 (+4.13%) | 26,000 |
| 17 May 1991 | GBX | 122 | 125 | 121 | 121 | 121 | +3 (+2.54%) | 252,697 |
| 16 May 1991 | GBX | 118 | 118 | 118 | 118 | 118 | -2 (-1.67%) | 5,000 |
| 15 May 1991 | GBX | 120 | 120 | 120 | 120 | 120 | 0.0 (0.0%) | 9,175 |
| 14 May 1991 | GBX | 124 | 125 | 120 | 120 | 120 | -6 (-4.76%) | 88,000 |
| 13 May 1991 | GBX | 126 | 126 | 126 | 126 | 126 | +1 (+0.80%) | 2,300 |
| 8 May 1991 | GBX | 126 | 126 | 125 | 125 | 125 | -2 (-1.57%) | 19,894 |
| 7 May 1991 | GBX | 127 | 127 | 127 | 127 | 127 | -2 (-1.55%) | 12,400 |
| 3 May 1991 | GBX | 129 | 129 | 129 | 129 | 129 | -5 (-3.73%) | 33,633 |
| 2 May 1991 | GBX | 134 | 134 | 134 | 134 | 134 | +4 (+3.08%) | 10,911 |
| 1 May 1991 | GBX | 130 | 130 | 130 | 130 | 130 | 0.0 (0.0%) | 5,200 |
| 30 Apr 1991 | GBX | 139 | 139 | 130 | 130 | 130 | -10 (-7.14%) | 67,882 |
