| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 18 Jun 1980 | HKD | 4.4 | 4.45 | 4.3 | 4.3 | 13.3165 | -0.08 (-1.83%) | 2,878,400 |
| 17 Jun 1980 | HKD | 4.38 | 4.38 | 4.38 | 4.38 | 13.5643 | +0.005 (+0.11%) | 0 |
| 16 Jun 1980 | HKD | 4.225 | 4.375 | 4.2 | 4.375 | 13.5488 | +0.225 (+5.42%) | 4,663,600 |
| 13 Jun 1980 | HKD | 4.2 | 4.225 | 4.125 | 4.15 | 12.852 | -0.025 (-0.60%) | 2,695,800 |
| 12 Jun 1980 | HKD | 4.075 | 4.175 | 4.05 | 4.175 | 12.9294 | +0.1 (+2.45%) | 1,590,800 |
| 11 Jun 1980 | HKD | 4.05 | 4.1 | 4.05 | 4.075 | 12.6197 | -0.025 (-0.61%) | 1,884,000 |
| 10 Jun 1980 | HKD | 4.075 | 4.15 | 4.075 | 4.1 | 12.6972 | +0.05 (+1.23%) | 2,086,400 |
| 9 Jun 1980 | HKD | 3.975 | 4.075 | 3.975 | 4.05 | 12.5423 | +0.1 (+2.53%) | 2,764,800 |
| 6 Jun 1980 | HKD | 3.975 | 3.975 | 3.925 | 3.95 | 12.2326 | 0.0 (0.0%) | 1,010,800 |
| 5 Jun 1980 | HKD | 3.95 | 4 | 3.925 | 3.95 | 12.2326 | +0.05 (+1.28%) | 1,482,400 |
| 4 Jun 1980 | HKD | 3.85 | 3.925 | 3.825 | 3.9 | 12.0778 | 0.0 (0.0%) | 647,200 |
| 3 Jun 1980 | HKD | 3.875 | 3.9 | 3.85 | 3.9 | 12.0778 | +0.025 (+0.65%) | 1,186,000 |
| 2 Jun 1980 | HKD | 3.9 | 3.95 | 3.85 | 3.875 | 12.0004 | +0.05 (+1.31%) | 1,550,400 |
| 30 May 1980 | HKD | 3.725 | 3.85 | 3.725 | 3.825 | 11.8455 | +0.05 (+1.32%) | 756,000 |
| 29 May 1980 | HKD | 3.85 | 3.85 | 3.75 | 3.775 | 11.6907 | -0.025 (-0.66%) | 844,000 |
| 28 May 1980 | HKD | 3.725 | 3.8 | 3.65 | 3.8 | 11.7681 | +0.075 (+2.01%) | 1,694,000 |
| 27 May 1980 | HKD | 3.875 | 3.875 | 3.7 | 3.725 | 11.5358 | -0.175 (-4.49%) | 1,513,200 |
| 26 May 1980 | HKD | 3.95 | 4 | 3.875 | 3.9 | 12.0778 | 0.0 (0.0%) | 2,060,000 |
| 23 May 1980 | HKD | 4.05 | 4.05 | 3.875 | 3.9 | 12.0778 | -0.075 (-1.89%) | 1,074,000 |
| 22 May 1980 | HKD | 3.95 | 3.975 | 3.925 | 3.975 | 12.31 | +0.045 (+1.15%) | 714,000 |
| 21 May 1980 | HKD | 3.93 | 3.93 | 3.93 | 3.93 | 12.1707 | +0.005 (+0.13%) | 0 |
| 20 May 1980 | HKD | 4 | 4 | 3.9 | 3.925 | 12.1552 | -0.05 (-1.26%) | 722,800 |
| 19 May 1980 | HKD | 4 | 4.05 | 3.975 | 3.975 | 12.31 | -0.075 (-1.85%) | 1,005,400 |
| 16 May 1980 | HKD | 4.125 | 4.125 | 4 | 4.05 | 12.5423 | -0.075 (-1.82%) | 1,272,800 |
| 15 May 1980 | HKD | 4.025 | 4.125 | 4 | 4.125 | 12.7746 | +0.1 (+2.48%) | 1,911,400 |
| 14 May 1980 | HKD | 4.075 | 4.075 | 4 | 4.025 | 12.4649 | -0.05 (-1.23%) | 1,398,800 |
| 13 May 1980 | HKD | 3.975 | 4.075 | 3.95 | 4.075 | 12.6197 | +0.175 (+4.49%) | 2,417,400 |
| 12 May 1980 | HKD | 3.85 | 3.9 | 3.85 | 3.9 | 12.0778 | -0.025 (-0.64%) | 1,665,600 |
| 9 May 1980 | HKD | 3.95 | 3.95 | 3.875 | 3.925 | 12.1552 | -0.025 (-0.63%) | 1,465,600 |
| 8 May 1980 | HKD | 3.85 | 3.95 | 3.825 | 3.95 | 12.2326 | +0.15 (+3.95%) | 1,820,400 |
