| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 26 Aug 1980 | HKD | 18.7 | 19.3 | 18.7 | 19.1 | 19.1 | +0.8 (+4.37%) | 392,000 |
| 25 Aug 1980 | HKD | 18.3 | 18.3 | 18.3 | 18.3 | 18.3 | 0.0 (0.0%) | 0 |
| 22 Aug 1980 | HKD | 18.4 | 18.7 | 18.2 | 18.3 | 18.3 | +0.2 (+1.10%) | 196,500 |
| 21 Aug 1980 | HKD | 17.6 | 18.3 | 17.6 | 18.1 | 18.1 | +0.7 (+4.02%) | 205,850 |
| 20 Aug 1980 | HKD | 17.4 | 17.5 | 17.1 | 17.4 | 17.4 | 0.0 (0.0%) | 182,500 |
| 19 Aug 1980 | HKD | 17.4 | 17.6 | 17.3 | 17.4 | 17.4 | -0.1 (-0.57%) | 231,250 |
| 18 Aug 1980 | HKD | 17.3 | 17.8 | 17.2 | 17.5 | 17.5 | +0.4 (+2.34%) | 286,250 |
| 15 Aug 1980 | HKD | 16.5 | 17.1 | 16.2 | 17.1 | 17.1 | +0.6 (+3.64%) | 226,750 |
| 14 Aug 1980 | HKD | 16.2 | 16.8 | 16.1 | 16.5 | 16.5 | +0.5 (+3.13%) | 109,000 |
| 13 Aug 1980 | HKD | 15.4 | 16.1 | 15.4 | 16 | 16 | +0.7 (+4.58%) | 175,000 |
| 12 Aug 1980 | HKD | 15.2 | 15.3 | 15 | 15.3 | 15.3 | +0.1 (+0.66%) | 353,700 |
| 11 Aug 1980 | HKD | 15.1 | 15.3 | 15.1 | 15.2 | 15.2 | +0.2 (+1.33%) | 193,250 |
| 8 Aug 1980 | HKD | 15 | 15.1 | 14.8 | 15 | 15 | +0.1 (+0.67%) | 238,750 |
| 7 Aug 1980 | HKD | 14.9 | 15.2 | 14.8 | 14.9 | 14.9 | +0.2 (+1.36%) | 290,250 |
| 6 Aug 1980 | HKD | 14.4 | 14.9 | 14.3 | 14.7 | 14.7 | +0.6 (+4.26%) | 177,500 |
| 5 Aug 1980 | HKD | 13.7 | 14.2 | 13.5 | 14.1 | 14.1 | -0.1 (-0.70%) | 345,000 |
| 4 Aug 1980 | HKD | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 0.0 (0.0%) | 0 |
| 1 Aug 1980 | HKD | 14.4 | 14.6 | 14.1 | 14.2 | 14.2 | -0.3 (-2.07%) | 278,500 |
| 31 Jul 1980 | HKD | 14.6 | 14.7 | 14.4 | 14.5 | 14.5 | 0.0 (0.0%) | 453,250 |
| 30 Jul 1980 | HKD | 13.7 | 14.7 | 13.5 | 14.5 | 14.5 | +0.9 (+6.62%) | 472,000 |
| 29 Jul 1980 | HKD | 13.2 | 13.6 | 13.1 | 13.6 | 13.6 | +0.4 (+3.03%) | 389,750 |
| 28 Jul 1980 | HKD | 13.4 | 13.4 | 13.1 | 13.2 | 13.2 | +0.3 (+2.33%) | 468,250 |
| 25 Jul 1980 | HKD | 12.8 | 13 | 12.8 | 12.9 | 12.9 | +0.3 (+2.38%) | 305,250 |
| 24 Jul 1980 | HKD | 12.5 | 12.7 | 12.5 | 12.6 | 12.6 | +0.1 (+0.80%) | 438,500 |
| 23 Jul 1980 | HKD | 12.2 | 12.5 | 12.2 | 12.5 | 12.5 | +0.5 (+4.17%) | 347,750 |
| 22 Jul 1980 | HKD | 12 | 12 | 12 | 12 | 12 | 0.0 (0.0%) | 0 |
| 21 Jul 1980 | HKD | 11.6 | 12 | 11.6 | 12 | 12 | +0.4 (+3.45%) | 384,250 |
| 18 Jul 1980 | HKD | 11 | 11.8 | 11 | 11.6 | 11.6 | +0.7 (+6.42%) | 345,500 |
| 17 Jul 1980 | HKD | 10.7 | 11 | 10.7 | 10.9 | 10.9 | +0.3 (+2.83%) | 72,000 |
| 16 Jul 1980 | HKD | 10.7 | 10.9 | 10.5 | 10.6 | 10.6 | -0.3 (-2.75%) | 142,000 |
