| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 4 Sep 1980 | GBP | 13.5 | 13.5 | 13.25 | 13.25 | 13.25 | 0.0 (0.0%) | 3,872 |
| 3 Sep 1980 | GBP | 13.375 | 13.375 | 13.25 | 13.25 | 13.25 | 0.0 (0.0%) | 2,800 |
| 2 Sep 1980 | GBP | 13.5 | 13.5 | 13.25 | 13.25 | 13.25 | -0.125 (-0.93%) | 3,075 |
| 29 Aug 1980 | GBP | 13.375 | 13.375 | 13.375 | 13.375 | 13.375 | 0.0 (0.0%) | 1,600 |
| 28 Aug 1980 | GBP | 13.5 | 13.5 | 13.375 | 13.375 | 13.375 | -0.125 (-0.93%) | 2,426 |
| 27 Aug 1980 | GBP | 13.625 | 13.625 | 13.5 | 13.5 | 13.5 | -0.125 (-0.92%) | 2,550 |
| 26 Aug 1980 | GBP | 13.875 | 13.875 | 13.625 | 13.625 | 13.625 | -0.25 (-1.80%) | 10,300 |
| 25 Aug 1980 | GBP | 13.875 | 13.875 | 13.875 | 13.875 | 13.875 | 0.0 (0.0%) | 875 |
| 22 Aug 1980 | GBP | 13.875 | 13.875 | 13.875 | 13.875 | 13.875 | 0.0 (0.0%) | 13,100 |
| 21 Aug 1980 | GBP | 13.875 | 14 | 13.875 | 13.875 | 13.875 | 0.0 (0.0%) | 18,194 |
| 20 Aug 1980 | GBP | 13.875 | 13.875 | 13.875 | 13.875 | 13.875 | -0.125 (-0.89%) | 7,220 |
| 19 Aug 1980 | GBP | 14 | 14 | 14 | 14 | 14 | 0.0 (0.0%) | 11,795 |
| 18 Aug 1980 | GBP | 14 | 14.25 | 14 | 14 | 14 | 0.0 (0.0%) | 14,450 |
| 15 Aug 1980 | GBP | 14.5 | 15 | 14 | 14 | 14 | 0.0 (0.0%) | 44,038 |
| 14 Aug 1980 | GBP | 14.25 | 14.25 | 14 | 14 | 14 | 0.0 (0.0%) | 6,970 |
| 13 Aug 1980 | GBP | 14 | 14 | 14 | 14 | 14 | 0.0 (0.0%) | 3,820 |
| 12 Aug 1980 | GBP | 14 | 14.25 | 14 | 14 | 14 | 0.0 (0.0%) | 7,350 |
| 11 Aug 1980 | GBP | 14 | 14 | 14 | 14 | 14 | +0.75 (+5.66%) | 16,500 |
| 8 Aug 1980 | GBP | 13.25 | 13.5 | 13.25 | 13.25 | 13.25 | 0.0 (0.0%) | 4,100 |
| 7 Aug 1980 | GBP | 13.25 | 13.5 | 13.25 | 13.25 | 13.25 | 0.0 (0.0%) | 3,398 |
| 6 Aug 1980 | GBP | 13.25 | 13.25 | 13.25 | 13.25 | 13.25 | 0.0 (0.0%) | 1,000 |
| 5 Aug 1980 | GBP | 13.375 | 13.375 | 13.25 | 13.25 | 13.25 | 0.0 (0.0%) | 7,200 |
| 1 Aug 1980 | GBP | 13.5 | 13.625 | 13.25 | 13.25 | 13.25 | -0.25 (-1.85%) | 11,100 |
| 31 Jul 1980 | GBP | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | -0.25 (-1.82%) | 15,400 |
| 30 Jul 1980 | GBP | 13.75 | 14 | 13.75 | 13.75 | 13.75 | -0.125 (-0.90%) | 16,575 |
| 29 Jul 1980 | GBP | 13.875 | 13.875 | 13.875 | 13.875 | 13.875 | +1 (+7.77%) | 22,418 |
| 28 Jul 1980 | GBP | 13 | 13 | 12.875 | 12.875 | 12.875 | -0.125 (-0.96%) | 11,722 |
| 25 Jul 1980 | GBP | 13 | 13.25 | 13 | 13 | 13 | -0.125 (-0.95%) | 23,150 |
| 24 Jul 1980 | GBP | 13.125 | 13.5 | 13.125 | 13.125 | 13.125 | +0.125 (+0.96%) | 31,008 |
| 23 Jul 1980 | GBP | 13.125 | 13.125 | 13 | 13 | 13 | +0.25 (+1.96%) | 25,876 |
