| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 17 Jun 1980 | HKD | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 0.0 (0.0%) | 0 |
| 16 Jun 1980 | HKD | 1.46 | 1.5 | 1.45 | 1.5 | 1.5 | +0.06 (+4.17%) | 644,050 |
| 13 Jun 1980 | HKD | 1.43 | 1.45 | 1.43 | 1.44 | 1.44 | +0.01 (+0.70%) | 333,000 |
| 12 Jun 1980 | HKD | 1.43 | 1.44 | 1.41 | 1.43 | 1.43 | +0.03 (+2.14%) | 212,500 |
| 11 Jun 1980 | HKD | 1.4 | 1.43 | 1.4 | 1.4 | 1.4 | -0.01 (-0.71%) | 585,000 |
| 10 Jun 1980 | HKD | 1.39 | 1.42 | 1.39 | 1.41 | 1.41 | +0.03 (+2.17%) | 600,000 |
| 9 Jun 1980 | HKD | 1.37 | 1.39 | 1.35 | 1.38 | 1.38 | +0.04 (+2.99%) | 450,300 |
| 6 Jun 1980 | HKD | 1.33 | 1.34 | 1.33 | 1.34 | 1.34 | +0.01 (+0.75%) | 812,010 |
| 5 Jun 1980 | HKD | 1.31 | 1.33 | 1.31 | 1.33 | 1.33 | +0.03 (+2.31%) | 237,500 |
| 4 Jun 1980 | HKD | 1.28 | 1.3 | 1.28 | 1.3 | 1.3 | +0.01 (+0.78%) | 292,000 |
| 3 Jun 1980 | HKD | 1.28 | 1.29 | 1.28 | 1.29 | 1.29 | 0.0 (0.0%) | 39,850 |
| 2 Jun 1980 | HKD | 1.29 | 1.3 | 1.28 | 1.29 | 1.29 | +0.01 (+0.78%) | 341,150 |
| 30 May 1980 | HKD | 1.28 | 1.28 | 1.28 | 1.28 | 1.28 | +0.01 (+0.79%) | 96,800 |
| 29 May 1980 | HKD | 1.27 | 1.28 | 1.27 | 1.27 | 1.27 | -0.01 (-0.78%) | 55,000 |
| 28 May 1980 | HKD | 1.25 | 1.29 | 1.25 | 1.28 | 1.28 | +0.01 (+0.79%) | 63,200 |
| 27 May 1980 | HKD | 1.28 | 1.28 | 1.26 | 1.27 | 1.27 | -0.03 (-2.31%) | 284,100 |
| 26 May 1980 | HKD | 1.3 | 1.3 | 1.29 | 1.3 | 1.3 | 0.0 (0.0%) | 218,700 |
| 23 May 1980 | HKD | 1.28 | 1.31 | 1.28 | 1.3 | 1.3 | +0.03 (+2.36%) | 3,134,050 |
| 22 May 1980 | HKD | 1.28 | 1.28 | 1.27 | 1.27 | 1.27 | -0.01 (-0.78%) | 101,450 |
| 21 May 1980 | HKD | 1.28 | 1.28 | 1.28 | 1.28 | 1.28 | 0.0 (0.0%) | 0 |
| 20 May 1980 | HKD | 1.28 | 1.28 | 1.28 | 1.28 | 1.28 | 0.0 (0.0%) | 22,500 |
| 19 May 1980 | HKD | 1.29 | 1.3 | 1.28 | 1.28 | 1.28 | -0.03 (-2.29%) | 87,500 |
| 16 May 1980 | HKD | 1.32 | 1.32 | 1.3 | 1.31 | 1.31 | -0.03 (-2.24%) | 47,500 |
| 15 May 1980 | HKD | 1.37 | 1.37 | 1.33 | 1.34 | 1.34 | -0.05 (-3.60%) | 95,000 |
| 14 May 1980 | HKD | 1.39 | 1.39 | 1.38 | 1.39 | 1.39 | +0.01 (+0.72%) | 97,500 |
| 13 May 1980 | HKD | 1.35 | 1.4 | 1.35 | 1.38 | 1.38 | +0.04 (+2.99%) | 427,500 |
| 12 May 1980 | HKD | 1.27 | 1.34 | 1.27 | 1.34 | 1.34 | +0.05 (+3.88%) | 757,200 |
| 9 May 1980 | HKD | 1.3 | 1.31 | 1.28 | 1.29 | 1.29 | -0.01 (-0.77%) | 210,000 |
| 8 May 1980 | HKD | 1.3 | 1.3 | 1.29 | 1.3 | 1.3 | +0.03 (+2.36%) | 265,000 |
| 7 May 1980 | HKD | 1.27 | 1.28 | 1.27 | 1.27 | 1.27 | -0.02 (-1.55%) | 118,500 |
