| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 5 Jun 1991 | GBX | 586 | 587 | 583 | 583 | 116.6 | -2 (-0.34%) | 0 |
| 4 Jun 1991 | GBX | 586 | 587 | 585 | 585 | 117 | -2 (-0.34%) | 0 |
| 3 Jun 1991 | GBX | 586 | 587 | 586 | 587 | 117.4 | 0.0 (0.0%) | 0 |
| 31 May 1991 | GBX | 586 | 587 | 586 | 587 | 117.4 | 0.0 (0.0%) | 0 |
| 30 May 1991 | GBX | 586 | 587 | 586 | 587 | 117.4 | 0.0 (0.0%) | 0 |
| 29 May 1991 | GBX | 586 | 588 | 586 | 587 | 117.4 | -2 (-0.34%) | 0 |
| 28 May 1991 | GBX | 598 | 598 | 589 | 589 | 117.8 | -8 (-1.34%) | 0 |
| 24 May 1991 | GBX | 598 | 598 | 597 | 597 | 119.4 | 0.0 (0.0%) | 0 |
| 23 May 1991 | GBX | 598 | 598 | 597 | 597 | 119.4 | 0.0 (0.0%) | 0 |
| 22 May 1991 | GBX | 598 | 600 | 597 | 597 | 119.4 | -3 (-0.50%) | 0 |
| 21 May 1991 | GBX | 608 | 608 | 600 | 600 | 120 | -4 (-0.66%) | 0 |
| 20 May 1991 | GBX | 608 | 608 | 604 | 604 | 120.8 | 0.0 (0.0%) | 0 |
| 17 May 1991 | GBX | 608 | 608 | 604 | 604 | 120.8 | 0.0 (0.0%) | 0 |
| 16 May 1991 | GBX | 608 | 608 | 604 | 604 | 120.8 | -1 (-0.17%) | 0 |
| 15 May 1991 | GBX | 608 | 608 | 605 | 605 | 121 | 0.0 (0.0%) | 0 |
| 14 May 1991 | GBX | 603 | 605 | 603 | 605 | 121 | +2 (+0.33%) | 0 |
| 13 May 1991 | GBX | 603 | 603 | 603 | 603 | 120.6 | 0.0 (0.0%) | 0 |
| 10 May 1991 | GBX | 603 | 603 | 600 | 603 | 120.6 | +3 (+0.50%) | 0 |
| 9 May 1991 | GBX | 593 | 600 | 593 | 600 | 120 | +7 (+1.18%) | 0 |
| 8 May 1991 | GBX | 588 | 593 | 588 | 593 | 118.6 | +5 (+0.85%) | 0 |
| 7 May 1991 | GBX | 588 | 588 | 588 | 588 | 117.6 | 0.0 (0.0%) | 0 |
| 3 May 1991 | GBX | 588 | 588 | 588 | 588 | 117.6 | 0.0 (0.0%) | 0 |
| 2 May 1991 | GBX | 588 | 588 | 588 | 588 | 117.6 | 0.0 (0.0%) | 0 |
| 1 May 1991 | GBX | 588 | 588 | 588 | 588 | 117.6 | 0.0 (0.0%) | 0 |
| 30 Apr 1991 | GBX | 588 | 588 | 588 | 588 | 117.6 | 0.0 (0.0%) | 0 |
| 29 Apr 1991 | GBX | 583 | 588 | 580 | 588 | 117.6 | -5 (-0.84%) | 0 |
| 26 Apr 1991 | GBX | 593 | 593 | 593 | 593 | 118.6 | 0.0 (0.0%) | 0 |
| 25 Apr 1991 | GBX | 593 | 593 | 593 | 593 | 118.6 | 0.0 (0.0%) | 0 |
| 24 Apr 1991 | GBX | 578 | 593 | 578 | 593 | 118.6 | +15 (+2.60%) | 0 |
| 23 Apr 1991 | GBX | 578 | 578 | 578 | 578 | 115.6 | 0.0 (0.0%) | 0 |
