| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 3 Jun 1980 | HKD | 9.85 | 9.85 | 9.7 | 9.7 | 9.7 | -0.15 (-1.52%) | 76,000 |
| 2 Jun 1980 | HKD | 9.95 | 10 | 9.8 | 9.85 | 9.85 | +0.05 (+0.51%) | 109,000 |
| 30 May 1980 | HKD | 9.8 | 9.8 | 9.75 | 9.8 | 9.8 | 0.0 (0.0%) | 140,000 |
| 29 May 1980 | HKD | 9.9 | 9.9 | 9.8 | 9.8 | 9.8 | -0.3 (-2.97%) | 42,000 |
| 28 May 1980 | HKD | 9.6 | 10.1 | 9.6 | 10.1 | 10.1 | +0.35 (+3.59%) | 28,000 |
| 27 May 1980 | HKD | 10.1 | 10.2 | 9.75 | 9.75 | 9.75 | -0.55 (-5.34%) | 46,000 |
| 26 May 1980 | HKD | 10.5 | 10.5 | 10.3 | 10.3 | 10.3 | -0.2 (-1.90%) | 253,000 |
| 23 May 1980 | HKD | 10.6 | 10.6 | 10.5 | 10.5 | 10.5 | -0.1 (-0.94%) | 38,000 |
| 22 May 1980 | HKD | 10.5 | 10.7 | 10.5 | 10.6 | 10.6 | +0.1 (+0.95%) | 54,750 |
| 21 May 1980 | HKD | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 0.0 (0.0%) | 0 |
| 20 May 1980 | HKD | 10.5 | 10.5 | 10.3 | 10.5 | 10.5 | -0.1 (-0.94%) | 20,250 |
| 19 May 1980 | HKD | 10.6 | 10.7 | 10.4 | 10.6 | 10.6 | 0.0 (0.0%) | 43,250 |
| 16 May 1980 | HKD | 10.5 | 10.6 | 10.5 | 10.6 | 10.6 | -0.2 (-1.85%) | 19,750 |
| 15 May 1980 | HKD | 10.4 | 10.8 | 10.4 | 10.8 | 10.8 | +0.4 (+3.85%) | 107,000 |
| 14 May 1980 | HKD | 10.6 | 10.6 | 10.4 | 10.4 | 10.4 | -0.2 (-1.89%) | 57,750 |
| 13 May 1980 | HKD | 10.6 | 10.7 | 10.5 | 10.6 | 10.6 | +0.1 (+0.95%) | 100,500 |
| 12 May 1980 | HKD | 10.4 | 10.5 | 10.3 | 10.5 | 10.5 | +0.2 (+1.94%) | 127,750 |
| 9 May 1980 | HKD | 10.4 | 10.5 | 10.3 | 10.3 | 10.3 | -0.1 (-0.96%) | 81,250 |
| 8 May 1980 | HKD | 10.3 | 10.4 | 10.3 | 10.4 | 10.4 | +0.2 (+1.96%) | 104,500 |
| 7 May 1980 | HKD | 10.2 | 10.2 | 10.1 | 10.2 | 10.2 | 0.0 (0.0%) | 64,500 |
| 6 May 1980 | HKD | 9.9 | 10.3 | 9.9 | 10.2 | 10.2 | +0.3 (+3.03%) | 101,750 |
| 5 May 1980 | HKD | 9.6 | 9.9 | 9.6 | 9.9 | 9.9 | +0.2 (+2.06%) | 20,750 |
| 2 May 1980 | HKD | 9.9 | 9.9 | 9.6 | 9.7 | 9.7 | -0.15 (-1.52%) | 66,000 |
| 1 May 1980 | HKD | 9.95 | 10.4 | 9.85 | 9.85 | 9.85 | 0.0 (0.0%) | 152,250 |
| 30 Apr 1980 | HKD | 9.55 | 10 | 9.55 | 9.85 | 9.85 | +0.25 (+2.60%) | 103,000 |
| 29 Apr 1980 | HKD | 9.6 | 9.65 | 9.55 | 9.6 | 9.6 | +0.1 (+1.05%) | 65,250 |
| 28 Apr 1980 | HKD | 9.45 | 9.6 | 9.45 | 9.5 | 9.5 | +0.1 (+1.06%) | 88,750 |
| 25 Apr 1980 | HKD | 9.3 | 9.5 | 9.25 | 9.4 | 9.4 | -0.05 (-0.53%) | 33,000 |
| 24 Apr 1980 | HKD | 9.4 | 9.45 | 9.4 | 9.45 | 9.45 | +0.15 (+1.61%) | 47,000 |
| 23 Apr 1980 | HKD | 9.35 | 9.4 | 9.3 | 9.3 | 9.3 | -0.15 (-1.59%) | 33,000 |
