| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 23 Jan 1981 | USD | 16.75 | 17 | 16.75 | 16.75 | 4,187,500 | -0.25 (-1.47%) | 8,700 |
| 22 Jan 1981 | USD | 17 | 17.25 | 17 | 17 | 4,250,000 | +0.25 (+1.49%) | 20,800 |
| 21 Jan 1981 | USD | 16.75 | 17.25 | 16.75 | 16.75 | 4,187,500 | +0.75 (+4.69%) | 15,900 |
| 20 Jan 1981 | USD | 16 | 16.5 | 16 | 16 | 4,000,000 | -1.75 (-9.86%) | 35,400 |
| 19 Jan 1981 | USD | 17.75 | 18 | 17.75 | 17.75 | 4,437,500 | 0.0 (0.0%) | 27,100 |
| 16 Jan 1981 | USD | 17.75 | 18.25 | 17.75 | 17.75 | 4,437,500 | +1 (+5.97%) | 51,900 |
| 15 Jan 1981 | USD | 16.75 | 17 | 16.75 | 16.75 | 4,187,500 | +1.25 (+8.06%) | 51,200 |
| 14 Jan 1981 | USD | 15.5 | 16 | 15.5 | 15.5 | 3,875,000 | +0.25 (+1.64%) | 60,900 |
| 13 Jan 1981 | USD | 15.25 | 16 | 15.25 | 15.25 | 3,812,500 | -0.25 (-1.61%) | 17,400 |
| 12 Jan 1981 | USD | 15.5 | 15.75 | 15.5 | 15.5 | 3,875,000 | +0.75 (+5.08%) | 19,500 |
| 9 Jan 1981 | USD | 14.75 | 15.25 | 14.75 | 14.75 | 3,687,500 | +0.75 (+5.36%) | 17,000 |
| 8 Jan 1981 | USD | 14 | 14.5 | 14 | 14 | 3,500,000 | +0.25 (+1.82%) | 15,300 |
| 7 Jan 1981 | USD | 13.75 | 14 | 13.75 | 13.75 | 3,437,500 | 0.0 (0.0%) | 17,300 |
| 6 Jan 1981 | USD | 13.75 | 14 | 13.75 | 13.75 | 3,437,500 | +0.25 (+1.85%) | 21,300 |
| 5 Jan 1981 | USD | 13.5 | 14 | 13.5 | 13.5 | 3,375,000 | +0.25 (+1.89%) | 8,100 |
| 2 Jan 1981 | USD | 13.25 | 13.75 | 13.25 | 13.25 | 3,312,500 | 0.0 (0.0%) | 6,400 |
| 31 Dec 1980 | USD | 13.25 | 13.75 | 13.25 | 13.25 | 3,312,500 | +0.75 (+6%) | 23,500 |
| 30 Dec 1980 | USD | 12.5 | 13 | 12.5 | 12.5 | 3,125,000 | 0.0 (0.0%) | 16,400 |
| 29 Dec 1980 | USD | 12.5 | 13 | 12.5 | 12.5 | 3,125,000 | -0.25 (-1.96%) | 12,600 |
| 26 Dec 1980 | USD | 12.75 | 13.25 | 12.75 | 12.75 | 3,187,500 | 0.0 (0.0%) | 12,600 |
| 24 Dec 1980 | USD | 12.75 | 13.25 | 12.75 | 12.75 | 3,187,500 | -0.5 (-3.77%) | 8,600 |
| 23 Dec 1980 | USD | 13.25 | 13.75 | 13.25 | 13.25 | 3,312,500 | 0.0 (0.0%) | 2,800 |
| 22 Dec 1980 | USD | 13.25 | 13.75 | 13.25 | 13.25 | 3,312,500 | -0.25 (-1.85%) | 3,900 |
| 19 Dec 1980 | USD | 13.5 | 14 | 13.5 | 13.5 | 3,375,000 | 0.0 (0.0%) | 12,200 |
| 18 Dec 1980 | USD | 13.5 | 14 | 13.5 | 13.5 | 3,375,000 | -0.75 (-5.26%) | 14,900 |
| 17 Dec 1980 | USD | 14.25 | 14.5 | 14.25 | 14.25 | 3,562,500 | -0.25 (-1.72%) | 4,500 |
| 16 Dec 1980 | USD | 14.5 | 14.75 | 14.5 | 14.5 | 3,625,000 | -0.25 (-1.69%) | 29,700 |
| 15 Dec 1980 | USD | 14.75 | 15 | 14.75 | 14.75 | 3,687,500 | +0.25 (+1.72%) | 13,400 |
| 12 Dec 1980 | USD | 14.5 | 14.75 | 14.5 | 14.5 | 3,625,000 | +0.75 (+5.45%) | 14,600 |
| 11 Dec 1980 | USD | 13.75 | 14.25 | 13.75 | 13.75 | 3,437,500 | -0.25 (-1.79%) | 9,900 |
