| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 22 Jul 1991 | GBX | 80 | 80 | 76 | 80 | 800 | +2 (+2.56%) | 58,600 |
| 19 Jul 1991 | GBX | 78 | 78 | 78 | 78 | 780 | +2 (+2.63%) | 76,500 |
| 18 Jul 1991 | GBX | 76 | 76 | 75 | 76 | 760 | +3 (+4.11%) | 115,000 |
| 17 Jul 1991 | GBX | 73 | 73 | 73 | 73 | 730 | -5 (-6.41%) | 10,000 |
| 15 Jul 1991 | GBX | 78 | 78 | 78 | 78 | 780 | -2 (-2.50%) | 21,000 |
| 11 Jul 1991 | GBX | 80 | 80 | 80 | 80 | 800 | -5 (-5.88%) | 25,740 |
| 28 Jun 1991 | GBX | 85 | 85 | 85 | 85 | 850 | -3 (-3.41%) | 6,000 |
| 27 Jun 1991 | GBX | 88 | 88 | 88 | 88 | 880 | 0.0 (0.0%) | 10,800 |
| 26 Jun 1991 | GBX | 88 | 88 | 88 | 88 | 880 | 0.0 (0.0%) | 12,000 |
| 25 Jun 1991 | GBX | 88 | 90 | 88 | 88 | 880 | -2 (-2.22%) | 19,000 |
| 24 Jun 1991 | GBX | 90 | 90 | 88 | 90 | 900 | -3 (-3.23%) | 1,003,500 |
| 20 Jun 1991 | GBX | 93 | 93 | 88 | 93 | 930 | 0.0 (0.0%) | 270,000 |
| 17 Jun 1991 | GBX | 93 | 93 | 93 | 93 | 930 | 0.0 (0.0%) | 100,000 |
| 14 Jun 1991 | GBX | 93 | 93 | 93 | 93 | 930 | 0.0 (0.0%) | 3,500 |
| 11 Jun 1991 | GBX | 93 | 93 | 93 | 93 | 930 | -4 (-4.12%) | 10,000 |
| 3 Jun 1991 | GBX | 97 | 97 | 97 | 97 | 970 | +2.125 (+2.24%) | 2,800 |
| 31 May 1991 | GBX | 94.875 | 94.875 | 93 | 94.875 | 948.75 | -0.125 (-0.13%) | 15,320 |
| 30 May 1991 | GBX | 95 | 95 | 95 | 95 | 950 | -2 (-2.06%) | 10,000 |
| 23 May 1991 | GBX | 97 | 97 | 97 | 97 | 970 | +2 (+2.11%) | 26,000 |
| 21 May 1991 | GBX | 95 | 99 | 95 | 95 | 950 | -1 (-1.04%) | 13,500 |
| 20 May 1991 | GBX | 96 | 96 | 96 | 96 | 960 | -1 (-1.03%) | 25,000 |
| 16 May 1991 | GBX | 97 | 97 | 97 | 97 | 970 | 0.0 (0.0%) | 25,000 |
| 15 May 1991 | GBX | 97 | 97 | 97 | 97 | 970 | -3 (-3%) | 100,000 |
| 14 May 1991 | GBX | 100 | 100 | 100 | 100 | 1,000 | +4 (+4.17%) | 711,124 |
| 8 May 1991 | GBX | 96 | 96 | 96 | 96 | 960 | -2 (-2.04%) | 50,000 |
| 29 Apr 1991 | GBX | 98 | 98.5 | 96 | 98 | 980 | -2 (-2%) | 224,000 |
| 24 Apr 1991 | GBX | 100 | 100 | 100 | 100 | 1,000 | -2 (-1.96%) | 35,000 |
| 23 Apr 1991 | GBX | 102 | 102 | 100 | 102 | 1,020 | -1 (-0.97%) | 79,375 |
| 18 Apr 1991 | GBX | 103 | 103 | 103 | 103 | 1,030 | -2 (-1.90%) | 30,700 |
| 16 Apr 1991 | GBX | 105 | 105 | 105 | 105 | 1,050 | +2 (+1.94%) | 25,000 |
