| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 29 May 1981 | USD | 20.25 | 20.5 | 20.25 | 20.25 | 5,062,500 | 0.0 (0.0%) | 18,000 |
| 28 May 1981 | USD | 20.25 | 21 | 20.25 | 20.25 | 5,062,500 | -0.25 (-1.22%) | 2,300 |
| 27 May 1981 | USD | 20.5 | 21 | 20.5 | 20.5 | 5,125,000 | 0.0 (0.0%) | 6,800 |
| 26 May 1981 | USD | 20.5 | 20.75 | 20.5 | 20.5 | 5,125,000 | -0.5 (-2.38%) | 11,300 |
| 25 May 1981 | USD | 21 | 21 | 21 | 21 | 5,250,000 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 21 | 21.75 | 21 | 21 | 5,250,000 | -0.25 (-1.18%) | 3,600 |
| 21 May 1981 | USD | 21.25 | 21.75 | 21.25 | 21.25 | 5,312,500 | +0.75 (+3.66%) | 42,800 |
| 20 May 1981 | USD | 20.5 | 20.75 | 20.5 | 20.5 | 5,125,000 | +1 (+5.13%) | 55,300 |
| 19 May 1981 | USD | 19.5 | 20 | 19.5 | 19.5 | 4,875,000 | 0.0 (0.0%) | 8,000 |
| 18 May 1981 | USD | 19.5 | 20 | 19.5 | 19.5 | 4,875,000 | -0.25 (-1.27%) | 7,500 |
| 15 May 1981 | USD | 19.75 | 20.25 | 19.75 | 19.75 | 4,937,500 | +0.75 (+3.95%) | 31,800 |
| 14 May 1981 | USD | 19 | 19.25 | 19 | 19 | 4,750,000 | +0.5 (+2.70%) | 7,700 |
| 13 May 1981 | USD | 18.5 | 19 | 18.5 | 18.5 | 4,625,000 | 0.0 (0.0%) | 3,500 |
| 12 May 1981 | USD | 18.5 | 18.75 | 18.5 | 18.5 | 4,625,000 | -0.25 (-1.33%) | 3,200 |
| 11 May 1981 | USD | 18.75 | 19 | 18.75 | 18.75 | 4,687,500 | -0.5 (-2.60%) | 10,000 |
| 8 May 1981 | USD | 19.25 | 19.5 | 19.25 | 19.25 | 4,812,500 | +0.25 (+1.32%) | 14,100 |
| 7 May 1981 | USD | 19 | 19.5 | 19 | 19 | 4,750,000 | +1 (+5.56%) | 15,800 |
| 6 May 1981 | USD | 18 | 18.5 | 18 | 18 | 4,500,000 | +1 (+5.88%) | 12,200 |
| 5 May 1981 | USD | 17 | 17.5 | 17 | 17 | 4,250,000 | +0.25 (+1.49%) | 4,700 |
| 4 May 1981 | USD | 16.75 | 17.25 | 16.75 | 16.75 | 4,187,500 | -1.25 (-6.94%) | 9,800 |
| 1 May 1981 | USD | 18 | 18.5 | 18 | 18 | 4,500,000 | -0.25 (-1.37%) | 9,700 |
| 30 Apr 1981 | USD | 18.25 | 18.75 | 18.25 | 18.25 | 4,562,500 | 0.0 (0.0%) | 5,600 |
| 29 Apr 1981 | USD | 18.25 | 18.75 | 18.25 | 18.25 | 4,562,500 | -1.5 (-7.59%) | 11,300 |
| 28 Apr 1981 | USD | 19.75 | 20.25 | 19.75 | 19.75 | 4,937,500 | -0.25 (-1.25%) | 9,000 |
| 27 Apr 1981 | USD | 20 | 20.25 | 20 | 20 | 5,000,000 | +0.5 (+2.56%) | 29,900 |
| 24 Apr 1981 | USD | 19.5 | 19.75 | 19.5 | 19.5 | 4,875,000 | 0.0 (0.0%) | 6,100 |
| 23 Apr 1981 | USD | 19.5 | 20 | 19.5 | 19.5 | 4,875,000 | 0.0 (0.0%) | 11,000 |
| 22 Apr 1981 | USD | 19.5 | 20 | 19.5 | 19.5 | 4,875,000 | 0.0 (0.0%) | 9,300 |
| 21 Apr 1981 | USD | 19.5 | 19.75 | 19.5 | 19.5 | 4,875,000 | 0.0 (0.0%) | 31,200 |
| 20 Apr 1981 | USD | 19.5 | 20 | 19.5 | 19.5 | 4,875,000 | +1.5 (+8.33%) | 39,100 |
