| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 22 Jul 1980 | GBP | 12.75 | 13 | 12.75 | 12.75 | 12.75 | +0.625 (+5.15%) | 49,704 |
| 21 Jul 1980 | GBP | 12.125 | 12.5 | 12.125 | 12.125 | 12.125 | +0.75 (+6.59%) | 25,124 |
| 18 Jul 1980 | GBP | 11.375 | 11.625 | 11.375 | 11.375 | 11.375 | +0.375 (+3.41%) | 24,750 |
| 17 Jul 1980 | GBP | 11 | 11.375 | 11 | 11 | 11 | 0.0 (0.0%) | 48,900 |
| 16 Jul 1980 | GBP | 11 | 11 | 11 | 11 | 11 | +0.25 (+2.33%) | 15,400 |
| 15 Jul 1980 | GBP | 11 | 11 | 10.75 | 10.75 | 10.75 | -0.25 (-2.27%) | 12,460 |
| 14 Jul 1980 | GBP | 11 | 11 | 11 | 11 | 11 | +0.5 (+4.76%) | 7,400 |
| 11 Jul 1980 | GBP | 10.5 | 11 | 10.5 | 10.5 | 10.5 | +0.125 (+1.20%) | 68,750 |
| 10 Jul 1980 | GBP | 10.375 | 10.5 | 10.375 | 10.375 | 10.375 | 0.0 (0.0%) | 2,300 |
| 9 Jul 1980 | GBP | 10.375 | 10.375 | 10.375 | 10.375 | 10.375 | +0.125 (+1.22%) | 4,900 |
| 8 Jul 1980 | GBP | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | +0.125 (+1.23%) | 4,710 |
| 7 Jul 1980 | GBP | 10.125 | 10.25 | 10.125 | 10.125 | 10.125 | +0.125 (+1.25%) | 4,480 |
| 4 Jul 1980 | GBP | 10 | 10.125 | 10 | 10 | 10 | 0.0 (0.0%) | 7,800 |
| 3 Jul 1980 | GBP | 10 | 10.125 | 10 | 10 | 10 | 0.0 (0.0%) | 3,850 |
| 2 Jul 1980 | GBP | 10 | 10.25 | 10 | 10 | 10 | +0.25 (+2.56%) | 2,620 |
| 30 Jun 1980 | GBP | 9.75 | 9.75 | 9.75 | 9.75 | 9.75 | 0.0 (0.0%) | 5,800 |
| 27 Jun 1980 | GBP | 9.875 | 9.875 | 9.75 | 9.75 | 9.75 | -0.125 (-1.27%) | 1,200 |
| 26 Jun 1980 | GBP | 10.25 | 10.25 | 9.875 | 9.875 | 9.875 | -0.375 (-3.66%) | 1,800 |
| 25 Jun 1980 | GBP | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 0.0 (0.0%) | 1,700 |
| 24 Jun 1980 | GBP | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 0.0 (0.0%) | 1,000 |
| 23 Jun 1980 | GBP | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 0.0 (0.0%) | 2,900 |
| 20 Jun 1980 | GBP | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | +0.125 (+1.23%) | 2,700 |
| 19 Jun 1980 | GBP | 10.125 | 10.125 | 10.125 | 10.125 | 10.125 | 0.0 (0.0%) | 4,906 |
| 18 Jun 1980 | GBP | 10.375 | 10.375 | 10.125 | 10.125 | 10.125 | -0.25 (-2.41%) | 7,250 |
| 17 Jun 1980 | GBP | 10.375 | 10.375 | 10.375 | 10.375 | 10.375 | +0.125 (+1.22%) | 3,500 |
| 16 Jun 1980 | GBP | 10.5 | 10.5 | 10.25 | 10.25 | 10.25 | 0.0 (0.0%) | 3,126 |
| 13 Jun 1980 | GBP | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | +0.25 (+2.50%) | 3,300 |
| 12 Jun 1980 | GBP | 10 | 10 | 10 | 10 | 10 | 0.0 (0.0%) | 2,814 |
| 11 Jun 1980 | GBP | 10 | 10 | 10 | 10 | 10 | 0.0 (0.0%) | 900 |
| 10 Jun 1980 | GBP | 10.375 | 10.375 | 10 | 10 | 10 | -0.5 (-4.76%) | 4,500 |
