| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 16 Aug 1991 | GBX | 345 | 348 | 342 | 347 | 347 | -3 (-0.86%) | 19,100 |
| 15 Aug 1991 | GBX | 340 | 350 | 340 | 350 | 350 | +8 (+2.34%) | 8,500 |
| 12 Aug 1991 | GBX | 342 | 342 | 342 | 342 | 342 | -6 (-1.72%) | 10,250 |
| 9 Aug 1991 | GBX | 340 | 348 | 340 | 348 | 348 | +1 (+0.29%) | 7,800 |
| 7 Aug 1991 | GBX | 348 | 348 | 347 | 347 | 347 | +5 (+1.46%) | 5,650 |
| 5 Aug 1991 | GBX | 343 | 343 | 342 | 342 | 342 | 0.0 (0.0%) | 861,000 |
| 2 Aug 1991 | GBX | 350 | 350 | 342 | 342 | 342 | -1 (-0.29%) | 6,910 |
| 1 Aug 1991 | GBX | 342 | 350 | 341 | 343 | 343 | +1 (+0.29%) | 209,700 |
| 31 Jul 1991 | GBX | 342 | 342 | 342 | 342 | 342 | -6 (-1.72%) | 11,500 |
| 30 Jul 1991 | GBX | 344 | 348 | 344 | 348 | 348 | -2 (-0.57%) | 451,700 |
| 29 Jul 1991 | GBX | 345 | 350 | 345 | 350 | 350 | +5 (+1.45%) | 8,885 |
| 26 Jul 1991 | GBX | 345 | 345 | 345 | 345 | 345 | +6 (+1.77%) | 851 |
| 25 Jul 1991 | GBX | 337 | 339 | 337 | 339 | 339 | +1 (+0.30%) | 210,000 |
| 23 Jul 1991 | GBX | 335 | 342 | 333 | 338 | 338 | +8 (+2.42%) | 661,151 |
| 22 Jul 1991 | GBX | 333 | 333 | 330 | 330 | 330 | -2 (-0.60%) | 17,500 |
| 19 Jul 1991 | GBX | 332 | 332 | 332 | 332 | 332 | -6 (-1.78%) | 88,500 |
| 18 Jul 1991 | GBX | 340 | 340 | 338 | 338 | 338 | 0.0 (0.0%) | 4,450 |
| 17 Jul 1991 | GBX | 333 | 338 | 333 | 338 | 338 | +1 (+0.30%) | 4,800 |
| 16 Jul 1991 | GBX | 340 | 340 | 337 | 337 | 337 | -1 (-0.30%) | 16,500 |
| 15 Jul 1991 | GBX | 338 | 338 | 338 | 338 | 338 | +7 (+2.11%) | 2,000 |
| 12 Jul 1991 | GBX | 331 | 331 | 331 | 331 | 331 | -5.5 (-1.63%) | 50,000 |
| 11 Jul 1991 | GBX | 333 | 336.5 | 333 | 336.5 | 336.5 | -3 (-0.88%) | 24,186 |
| 10 Jul 1991 | GBX | 339 | 339.5 | 339 | 339.5 | 339.5 | +4.5 (+1.34%) | 27,000 |
| 9 Jul 1991 | GBX | 340 | 340 | 335 | 335 | 335 | -5 (-1.47%) | 45,982 |
| 8 Jul 1991 | GBX | 333 | 340 | 330 | 340 | 340 | +5 (+1.49%) | 23,280 |
| 5 Jul 1991 | GBX | 327 | 340 | 327 | 335 | 335 | +10 (+3.08%) | 374,000 |
| 4 Jul 1991 | GBX | 335 | 335 | 325 | 325 | 325 | -2 (-0.61%) | 4,800 |
| 3 Jul 1991 | GBX | 327 | 327 | 327 | 327 | 327 | -8 (-2.39%) | 1,500 |
| 2 Jul 1991 | GBX | 335 | 335 | 335 | 335 | 335 | 0.0 (0.0%) | 1,000 |
| 1 Jul 1991 | GBX | 325 | 335 | 325 | 335 | 335 | -9 (-2.62%) | 30,150 |
