| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 23 May 1980 | USD | 11.875 | 11.875 | 11.875 | 11.875 | 11.875 | +0.125 (+1.06%) | 300 |
| 22 May 1980 | USD | 11.75 | 11.75 | 11.75 | 11.75 | 11.75 | 0.0 (0.0%) | 0 |
| 21 May 1980 | USD | 11.75 | 11.75 | 11.75 | 11.75 | 11.75 | +0.75 (+6.82%) | 700 |
| 20 May 1980 | USD | 11 | 11.375 | 11 | 11 | 11 | -0.5 (-4.35%) | 1,400 |
| 19 May 1980 | USD | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 0.0 (0.0%) | 0 |
| 16 May 1980 | USD | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 0.0 (0.0%) | 400 |
| 15 May 1980 | USD | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 0.0 (0.0%) | 100 |
| 14 May 1980 | USD | 11.5 | 11.75 | 11.5 | 11.5 | 11.5 | -0.5 (-4.17%) | 200 |
| 13 May 1980 | USD | 12 | 12 | 12 | 12 | 12 | 0.0 (0.0%) | 200 |
| 12 May 1980 | USD | 12 | 12 | 12 | 12 | 12 | 0.0 (0.0%) | 0 |
| 9 May 1980 | USD | 12 | 12 | 12 | 12 | 12 | 0.0 (0.0%) | 0 |
| 8 May 1980 | USD | 12 | 12 | 11.625 | 12 | 12 | 0.0 (0.0%) | 500 |
| 7 May 1980 | USD | 12 | 12 | 12 | 12 | 12 | -0.375 (-3.03%) | 200 |
| 6 May 1980 | USD | 12.375 | 12.375 | 12.375 | 12.375 | 12.375 | -0.375 (-2.94%) | 200 |
| 5 May 1980 | USD | 12.75 | 12.75 | 11.875 | 12.75 | 12.75 | +1 (+8.51%) | 800 |
| 2 May 1980 | USD | 11.75 | 11.75 | 11.75 | 11.75 | 11.75 | 0.0 (0.0%) | 600 |
| 1 May 1980 | USD | 11.75 | 11.75 | 11.75 | 11.75 | 11.75 | +0.25 (+2.17%) | 300 |
| 30 Apr 1980 | USD | 11.5 | 11.75 | 11.5 | 11.5 | 11.5 | -0.125 (-1.08%) | 1,600 |
| 29 Apr 1980 | USD | 11.625 | 11.625 | 11.625 | 11.625 | 11.625 | +0.5 (+4.49%) | 500 |
| 28 Apr 1980 | USD | 11.125 | 11.125 | 11.125 | 11.125 | 11.125 | 0.0 (0.0%) | 200 |
| 25 Apr 1980 | USD | 11.125 | 11.5 | 11.125 | 11.125 | 11.125 | +0.25 (+2.30%) | 200 |
| 24 Apr 1980 | USD | 10.875 | 10.875 | 10.875 | 10.875 | 10.875 | -0.5 (-4.40%) | 400 |
| 23 Apr 1980 | USD | 11.375 | 11.5 | 11.25 | 11.375 | 11.375 | +0.25 (+2.25%) | 400 |
| 22 Apr 1980 | USD | 11.125 | 11.125 | 11.125 | 11.125 | 11.125 | 0.0 (0.0%) | 0 |
| 21 Apr 1980 | USD | 11.125 | 11.25 | 11.125 | 11.125 | 11.125 | -0.125 (-1.11%) | 300 |
| 18 Apr 1980 | USD | 11.25 | 11.25 | 11.25 | 11.25 | 11.25 | 0.0 (0.0%) | 0 |
| 17 Apr 1980 | USD | 11.25 | 11.375 | 10.75 | 11.25 | 11.25 | +0.5 (+4.65%) | 2,600 |
| 16 Apr 1980 | USD | 10.75 | 10.75 | 10.75 | 10.75 | 10.75 | +0.375 (+3.61%) | 100 |
| 15 Apr 1980 | USD | 10.375 | 10.75 | 10.375 | 10.375 | 10.375 | -0.125 (-1.19%) | 1,100 |
| 14 Apr 1980 | USD | 10.5 | 10.75 | 10.5 | 10.5 | 10.5 | -0.125 (-1.18%) | 600 |
