| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 6 Oct 1980 | HKD | 102 | 106 | 100 | 105 | 94.1484 | +5.5 (+5.53%) | 164,123 |
| 3 Oct 1980 | HKD | 99.5 | 99.5 | 98 | 99.5 | 89.2168 | -0.5 (-0.50%) | 146,408 |
| 2 Oct 1980 | HKD | 97 | 100 | 97 | 100 | 89.6652 | +4 (+4.17%) | 277,400 |
| 1 Oct 1980 | HKD | 97 | 97.5 | 95.5 | 96 | 86.0785 | +0.5 (+0.52%) | 572,987 |
| 30 Sep 1980 | HKD | 97.5 | 98 | 95 | 95.5 | 85.6302 | -0.5 (-0.52%) | 252,920 |
| 29 Sep 1980 | HKD | 98 | 99 | 95.5 | 96 | 86.0785 | -0.5 (-0.52%) | 573,639 |
| 26 Sep 1980 | HKD | 96 | 101 | 94.5 | 96.5 | 86.5269 | +0.5 (+0.52%) | 482,000 |
| 25 Sep 1980 | HKD | 97 | 99 | 95.5 | 96 | 86.0785 | -1 (-1.03%) | 200,705 |
| 24 Sep 1980 | HKD | 97 | 97 | 97 | 97 | 86.9752 | 0.0 (0.0%) | 0 |
| 23 Sep 1980 | HKD | 100 | 101 | 96.5 | 97 | 86.9752 | -1 (-1.02%) | 251,576 |
| 22 Sep 1980 | HKD | 95 | 98 | 94.5 | 98 | 87.8718 | +5.5 (+5.95%) | 318,400 |
| 19 Sep 1980 | HKD | 92.5 | 94 | 92 | 92.5 | 82.9403 | -1 (-1.07%) | 218,000 |
| 18 Sep 1980 | HKD | 95 | 96 | 92.5 | 93.5 | 83.8369 | -0.5 (-0.53%) | 138,067 |
| 17 Sep 1980 | HKD | 96 | 97 | 94 | 94 | 84.2852 | -1 (-1.05%) | 152,892 |
| 16 Sep 1980 | HKD | 97 | 98.5 | 95 | 95 | 85.1819 | -2 (-2.06%) | 93,080 |
| 15 Sep 1980 | HKD | 99 | 99 | 96.5 | 97 | 86.9752 | +1 (+1.04%) | 133,444 |
| 12 Sep 1980 | HKD | 96 | 97.5 | 96 | 96 | 86.0785 | +1 (+1.05%) | 111,558 |
| 11 Sep 1980 | HKD | 94 | 97 | 94 | 95 | 85.1819 | +1 (+1.06%) | 220,742 |
| 10 Sep 1980 | HKD | 92 | 95 | 91 | 94 | 84.2852 | +3 (+3.30%) | 288,651 |
| 9 Sep 1980 | HKD | 88 | 92.5 | 87 | 91 | 81.5953 | +2 (+2.25%) | 115,323 |
| 8 Sep 1980 | HKD | 92 | 92.5 | 87 | 89 | 79.802 | -3.5 (-3.78%) | 117,520 |
| 5 Sep 1980 | HKD | 93 | 93 | 91 | 92.5 | 82.9403 | +0.5 (+0.54%) | 77,337 |
| 4 Sep 1980 | HKD | 94 | 95 | 91.5 | 92 | 82.4919 | -1.5 (-1.60%) | 117,069 |
| 3 Sep 1980 | HKD | 91 | 93.5 | 90.5 | 93.5 | 83.8369 | +2.5 (+2.75%) | 126,340 |
| 2 Sep 1980 | HKD | 93 | 93 | 91 | 91 | 81.5953 | -0.5 (-0.55%) | 79,318 |
| 1 Sep 1980 | HKD | 92.5 | 93 | 91.5 | 91.5 | 82.0436 | +0.5 (+0.55%) | 182,120 |
| 29 Aug 1980 | HKD | 86.5 | 91 | 85.5 | 91 | 81.5953 | +3 (+3.41%) | 124,560 |
| 28 Aug 1980 | HKD | 92 | 92 | 86 | 88 | 78.9053 | -2 (-2.22%) | 121,040 |
| 27 Aug 1980 | HKD | 90 | 92 | 88 | 90 | 80.6986 | -1.5 (-1.64%) | 162,034 |
| 26 Aug 1980 | HKD | 92.5 | 95 | 91.5 | 91.5 | 82.0436 | +0.5 (+0.55%) | 240,016 |
