| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 20 Oct 1980 | GBP | 13 | 13 | 13 | 13 | 13 | +0.875 (+7.22%) | 4,800 |
| 17 Oct 1980 | GBP | 12.125 | 12.25 | 12.125 | 12.125 | 12.125 | -0.125 (-1.02%) | 3,900 |
| 16 Oct 1980 | GBP | 12.25 | 12.25 | 12.25 | 12.25 | 12.25 | +0.25 (+2.08%) | 2,298 |
| 14 Oct 1980 | GBP | 12.25 | 12.25 | 12 | 12 | 12 | -0.125 (-1.03%) | 2,650 |
| 10 Oct 1980 | GBP | 12.125 | 12.125 | 12.125 | 12.125 | 12.125 | +0.125 (+1.04%) | 600 |
| 9 Oct 1980 | GBP | 12 | 12.125 | 12 | 12 | 12 | -0.125 (-1.03%) | 4,207 |
| 8 Oct 1980 | GBP | 12.125 | 12.125 | 12.125 | 12.125 | 12.125 | 0.0 (0.0%) | 1,500 |
| 7 Oct 1980 | GBP | 12.125 | 12.125 | 12.125 | 12.125 | 12.125 | 0.0 (0.0%) | 3,615 |
| 6 Oct 1980 | GBP | 12.5 | 12.5 | 12.125 | 12.125 | 12.125 | +0.125 (+1.04%) | 2,300 |
| 3 Oct 1980 | GBP | 12.125 | 12.25 | 12 | 12 | 12 | -0.125 (-1.03%) | 6,700 |
| 2 Oct 1980 | GBP | 12.125 | 12.125 | 12.125 | 12.125 | 12.125 | +0.125 (+1.04%) | 1,775 |
| 1 Oct 1980 | GBP | 12 | 12.5 | 12 | 12 | 12 | 0.0 (0.0%) | 2,600 |
| 30 Sep 1980 | GBP | 12 | 12 | 12 | 12 | 12 | +0.125 (+1.05%) | 1,155 |
| 29 Sep 1980 | GBP | 12 | 12 | 11.875 | 11.875 | 11.875 | -0.125 (-1.04%) | 4,900 |
| 26 Sep 1980 | GBP | 13 | 13 | 12 | 12 | 12 | -1.25 (-9.43%) | 13,553 |
| 25 Sep 1980 | GBP | 13.625 | 13.625 | 13.25 | 13.25 | 13.25 | -0.25 (-1.85%) | 5,400 |
| 24 Sep 1980 | GBP | 13.75 | 13.75 | 13.5 | 13.5 | 13.5 | 0.0 (0.0%) | 3,483 |
| 23 Sep 1980 | GBP | 13.75 | 13.75 | 13.5 | 13.5 | 13.5 | 0.0 (0.0%) | 4,700 |
| 22 Sep 1980 | GBP | 13.75 | 13.75 | 13.5 | 13.5 | 13.5 | -0.25 (-1.82%) | 2,730 |
| 19 Sep 1980 | GBP | 13.75 | 13.75 | 13.75 | 13.75 | 13.75 | +0.375 (+2.80%) | 124 |
| 18 Sep 1980 | GBP | 13.375 | 13.5 | 13.375 | 13.375 | 13.375 | +0.125 (+0.94%) | 16,700 |
| 17 Sep 1980 | GBP | 13.5 | 13.5 | 13.25 | 13.25 | 13.25 | 0.0 (0.0%) | 2,300 |
| 16 Sep 1980 | GBP | 13.25 | 13.25 | 13.25 | 13.25 | 13.25 | 0.0 (0.0%) | 1,250 |
| 15 Sep 1980 | GBP | 13.25 | 13.25 | 13.25 | 13.25 | 13.25 | 0.0 (0.0%) | 2,110 |
| 12 Sep 1980 | GBP | 13.375 | 13.375 | 13.25 | 13.25 | 13.25 | 0.0 (0.0%) | 2,500 |
| 11 Sep 1980 | GBP | 13.25 | 13.25 | 13.25 | 13.25 | 13.25 | 0.0 (0.0%) | 2,200 |
| 10 Sep 1980 | GBP | 13.5 | 13.5 | 13.25 | 13.25 | 13.25 | -0.25 (-1.85%) | 2,182 |
| 9 Sep 1980 | GBP | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | +0.375 (+2.86%) | 2,780 |
| 8 Sep 1980 | GBP | 13.125 | 13.25 | 13.125 | 13.125 | 13.125 | 0.0 (0.0%) | 7,950 |
| 5 Sep 1980 | GBP | 13.125 | 13.25 | 13.125 | 13.125 | 13.125 | -0.125 (-0.94%) | 7,700 |
