| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 21 May 1991 | GBX | 733 | 733 | 729 | 729 | 14,430.3143 | 0.0 (0.0%) | 0 |
| 20 May 1991 | GBX | 733 | 734 | 729 | 729 | 14,430.3143 | -21 (-2.80%) | 0 |
| 17 May 1991 | GBX | 750 | 750 | 748 | 750 | 14,846.0024 | 0.0 (0.0%) | 0 |
| 16 May 1991 | GBX | 720 | 750 | 718 | 750 | 14,846.0024 | +54 (+7.76%) | 0 |
| 15 May 1991 | GBX | 697 | 697 | 696 | 696 | 13,777.0902 | -1 (-0.14%) | 0 |
| 14 May 1991 | GBX | 695 | 697 | 695 | 697 | 13,796.8849 | 0.0 (0.0%) | 0 |
| 13 May 1991 | GBX | 710 | 710 | 697 | 697 | 13,796.8849 | -16 (-2.24%) | 0 |
| 10 May 1991 | GBX | 675 | 714 | 675 | 713 | 14,113.5996 | +38 (+5.63%) | 0 |
| 9 May 1991 | GBX | 662 | 675 | 661 | 675 | 13,361.4022 | +15 (+2.27%) | 0 |
| 8 May 1991 | GBX | 650 | 660 | 650 | 660 | 13,064.4821 | +10 (+1.54%) | 0 |
| 7 May 1991 | GBX | 645 | 650 | 645 | 650 | 12,866.5354 | +5 (+0.78%) | 0 |
| 3 May 1991 | GBX | 635 | 645 | 635 | 645 | 12,767.5621 | +10 (+1.57%) | 0 |
| 2 May 1991 | GBX | 635 | 635 | 635 | 635 | 12,569.6154 | 0.0 (0.0%) | 0 |
| 1 May 1991 | GBX | 627 | 635 | 627 | 635 | 12,569.6154 | +8 (+1.28%) | 0 |
| 30 Apr 1991 | GBX | 627 | 627 | 626 | 627 | 12,411.258 | 0.0 (0.0%) | 0 |
| 29 Apr 1991 | GBX | 627 | 627 | 626 | 627 | 12,411.258 | 0.0 (0.0%) | 0 |
| 26 Apr 1991 | GBX | 625 | 627 | 625 | 627 | 12,411.258 | +2 (+0.32%) | 0 |
| 25 Apr 1991 | GBX | 622 | 625 | 622 | 625 | 12,371.6687 | +3 (+0.48%) | 0 |
| 24 Apr 1991 | GBX | 620 | 622 | 620 | 622 | 12,312.2847 | +2 (+0.32%) | 0 |
| 23 Apr 1991 | GBX | 620 | 622 | 619 | 620 | 12,272.6953 | +1 (+0.16%) | 0 |
| 22 Apr 1991 | GBX | 620 | 620 | 619 | 619 | 12,252.9007 | 0.0 (0.0%) | 0 |
| 19 Apr 1991 | GBX | 620 | 620 | 618 | 619 | 12,252.9007 | +1 (+0.16%) | 0 |
| 18 Apr 1991 | GBX | 615 | 619 | 615 | 618 | 12,233.106 | 0.0 (0.0%) | 0 |
| 17 Apr 1991 | GBX | 615 | 618 | 614 | 618 | 12,233.106 | +4 (+0.65%) | 0 |
| 16 Apr 1991 | GBX | 615 | 615 | 614 | 614 | 12,153.9273 | 0.0 (0.0%) | 0 |
| 15 Apr 1991 | GBX | 615 | 615 | 613 | 614 | 12,153.9273 | +2 (+0.33%) | 0 |
| 12 Apr 1991 | GBX | 605 | 612 | 605 | 612 | 12,114.338 | +4 (+0.66%) | 0 |
| 11 Apr 1991 | GBX | 610 | 610 | 608 | 608 | 12,035.1593 | -1 (-0.16%) | 0 |
| 10 Apr 1991 | GBX | 607 | 609 | 607 | 609 | 12,054.954 | +2 (+0.33%) | 0 |
| 9 Apr 1991 | GBX | 607 | 609 | 607 | 607 | 12,015.3646 | -1 (-0.16%) | 0 |
