NATIONALUM
National Aluminium Co Ltd
Historical option data for NATIONALUM
23 Apr 2026 04:10 PM IST
| NATIONALUM 28-Apr-2026 (4d) 420 CE | ||||||||||||||||
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Delta: 0.91
Vega: 0
Theta: -0.23
Gamma: 0.0106
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| Date | Close | Ltp | Change | IV | Volume | OI Chg | OI | |||||||||
| 23 Apr | 439.25 | 20.25 | 0.8999999999999986 | 28.24 | 84 | -28 | 293 | |||||||||
| 22 Apr | 435.95 | 19.7 | 8.25 | 36.6 | 614 | -41 | 320 | |||||||||
| 21 Apr | 422.95 | 11.8 | -2.549999999999999 | 39.79 | 384 | -42 | 359 | |||||||||
| 20 Apr | 426.65 | 14.1 | -9.200000000000001 | 41.28 | 362 | -14 | 402 | |||||||||
| 17 Apr | 438.75 | 22.6 | 1.8000000000000007 | 36 | 576 | -37 | 420 | |||||||||
| 16 Apr | 432.70 | 21.3 | 4.449999999999999 | 40.37 | 889 | -138 | 458 | |||||||||
| 15 Apr | 423.90 | 16.6 | 1.200000000000001 | 44.25 | 1,766 | -394 | 595 | |||||||||
| 13 Apr | 418.05 | 14.75 | -1.0500000000000007 | 44.68 | 3,946 | 213 | 1,011 | |||||||||
| 10 Apr | 417.00 | 15.7 | 1.5 | 42.55 | 2,031 | 78 | 784 | |||||||||
| 9 Apr | 412.35 | 13.7 | 4 | 42.26 | 2,356 | -35 | 707 | |||||||||
| 8 Apr | 400.15 | 9.65 | -6 | 44.51 | 2,054 | 205 | 744 | |||||||||
| 7 Apr | 411.75 | 15.4 | 1.15 | 45.4 | 1,776 | 144 | 539 | |||||||||
| 6 Apr | 407.85 | 13.95 | 1.85 | 45.96 | 1,507 | 25 | 395 | |||||||||
| 2 Apr | 401.80 | 12 | 1.3 | 43 | 1,000 | -8 | 367 | |||||||||
| 1 Apr | 399.45 | 11 | 2.8 | 40.22 | 875 | 53 | 376 | |||||||||
| 30 Mar | 386.10 | 8.5 | 4.05 | 44.17 | 1,436 | 206 | 324 | |||||||||
| 27 Mar | 371.00 | 4.5 | 0.6 | 41.45 | 156 | 9 | 118 | |||||||||
| 25 Mar | 367.30 | 3.95 | 0.9 | 41.16 | 142 | 33 | 109 | |||||||||
| 24 Mar | 354.65 | 3 | -0.35 | 43.87 | 71 | 14 | 76 | |||||||||
| 23 Mar | 349.75 | 3.3 | -2.5 | 47.3 | 51 | -1 | 63 | |||||||||
| 20 Mar | 368.50 | 5.8 | -1.85 | 41.24 | 81 | -4 | 63 | |||||||||
| 19 Mar | 377.00 | 7.9 | -1.8 | 41.41 | 59 | 9 | 66 | |||||||||
| 18 Mar | 387.65 | 9.55 | -3.1 | 38.32 | 63 | 13 | 57 | |||||||||
| 17 Mar | 395.15 | 12.8 | 5.35 | 38.25 | 117 | 13 | 42 | |||||||||
| 16 Mar | 372.25 | 7.4 | -3.6 | 42.46 | 72 | -13 | 28 | |||||||||
| 13 Mar | 387.35 | 11 | -8.6 | 39.45 | 95 | 11 | 40 | |||||||||
| 12 Mar | 409.15 | 19.6 | 4.65 | 38.27 | 33 | 23 | 29 | |||||||||
| 11 Mar | 397.75 | 14.8 | -0.7 | 37.9 | 14 | 7 | 8 | |||||||||
| 10 Mar | 388.75 | 15.5 | -9.5 | - | 0 | 0 | 1 | |||||||||
| 9 Mar | 388.10 | 15.5 | -9.5 | - | 0 | 0 | 1 | |||||||||
| 6 Mar | 396.15 | 15.5 | -9.5 | 37.75 | 1 | 0 | 0 | |||||||||
| 5 Mar | 395.95 | 25 | 0 | 3.32 | 0 | 0 | 0 | |||||||||
| 4 Mar | 373.50 | 25 | 0 | - | 0 | 0 | 0 | |||||||||
| 2 Mar | 362.85 | 25 | 0 | - | 0 | 0 | 0 | |||||||||
| 27 Feb | 354.60 | 25 | 0 | - | 0 | 0 | 0 | |||||||||
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| 26 Feb | 361.30 | 25 | 0 | - | 0 | 0 | 0 | |||||||||
| 1 Feb | 354.20 | - | - | - | 0 | 0 | 0 | |||||||||
| 30 Jan | 385.45 | 0 | 0 | 2.14 | 0 | 0 | 0 | |||||||||
| 29 Jan | 428.85 | 0 | 0 | 0.63 | 0 | 0 | 0 | |||||||||
For National Aluminium Co Ltd - strike price 420 expiring on 28APR2026
Delta for 420 CE is 0.91
Historical price for 420 CE is as follows
On 23 Apr NATIONALUM was trading at 439.25. The strike last trading price was 20.25, which was 0.8999999999999986 higher than the previous day. The implied volatity was 28.24, the open interest changed by -28 which decreased total open position to 293
On 22 Apr NATIONALUM was trading at 435.95. The strike last trading price was 19.7, which was 8.25 higher than the previous day. The implied volatity was 36.6, the open interest changed by -41 which decreased total open position to 320
On 21 Apr NATIONALUM was trading at 422.95. The strike last trading price was 11.8, which was -2.549999999999999 lower than the previous day. The implied volatity was 39.79, the open interest changed by -42 which decreased total open position to 359
On 20 Apr NATIONALUM was trading at 426.65. The strike last trading price was 14.1, which was -9.200000000000001 lower than the previous day. The implied volatity was 41.28, the open interest changed by -14 which decreased total open position to 402
On 17 Apr NATIONALUM was trading at 438.75. The strike last trading price was 22.6, which was 1.8000000000000007 higher than the previous day. The implied volatity was 36, the open interest changed by -37 which decreased total open position to 420
On 16 Apr NATIONALUM was trading at 432.70. The strike last trading price was 21.3, which was 4.449999999999999 higher than the previous day. The implied volatity was 40.37, the open interest changed by -138 which decreased total open position to 458
On 15 Apr NATIONALUM was trading at 423.90. The strike last trading price was 16.6, which was 1.200000000000001 higher than the previous day. The implied volatity was 44.25, the open interest changed by -394 which decreased total open position to 595
On 13 Apr NATIONALUM was trading at 418.05. The strike last trading price was 14.75, which was -1.0500000000000007 lower than the previous day. The implied volatity was 44.68, the open interest changed by 213 which increased total open position to 1011
On 10 Apr NATIONALUM was trading at 417.00. The strike last trading price was 15.7, which was 1.5 higher than the previous day. The implied volatity was 42.55, the open interest changed by 78 which increased total open position to 784
On 9 Apr NATIONALUM was trading at 412.35. The strike last trading price was 13.7, which was 4 higher than the previous day. The implied volatity was 42.26, the open interest changed by -35 which decreased total open position to 707
On 8 Apr NATIONALUM was trading at 400.15. The strike last trading price was 9.65, which was -6 lower than the previous day. The implied volatity was 44.51, the open interest changed by 205 which increased total open position to 744
On 7 Apr NATIONALUM was trading at 411.75. The strike last trading price was 15.4, which was 1.15 higher than the previous day. The implied volatity was 45.4, the open interest changed by 144 which increased total open position to 539
On 6 Apr NATIONALUM was trading at 407.85. The strike last trading price was 13.95, which was 1.85 higher than the previous day. The implied volatity was 45.96, the open interest changed by 25 which increased total open position to 395
On 2 Apr NATIONALUM was trading at 401.80. The strike last trading price was 12, which was 1.3 higher than the previous day. The implied volatity was 43, the open interest changed by -8 which decreased total open position to 367
On 1 Apr NATIONALUM was trading at 399.45. The strike last trading price was 11, which was 2.8 higher than the previous day. The implied volatity was 40.22, the open interest changed by 53 which increased total open position to 376
On 30 Mar NATIONALUM was trading at 386.10. The strike last trading price was 8.5, which was 4.05 higher than the previous day. The implied volatity was 44.17, the open interest changed by 206 which increased total open position to 324
On 27 Mar NATIONALUM was trading at 371.00. The strike last trading price was 4.5, which was 0.6 higher than the previous day. The implied volatity was 41.45, the open interest changed by 9 which increased total open position to 118
On 25 Mar NATIONALUM was trading at 367.30. The strike last trading price was 3.95, which was 0.9 higher than the previous day. The implied volatity was 41.16, the open interest changed by 33 which increased total open position to 109
On 24 Mar NATIONALUM was trading at 354.65. The strike last trading price was 3, which was -0.35 lower than the previous day. The implied volatity was 43.87, the open interest changed by 14 which increased total open position to 76
On 23 Mar NATIONALUM was trading at 349.75. The strike last trading price was 3.3, which was -2.5 lower than the previous day. The implied volatity was 47.3, the open interest changed by -1 which decreased total open position to 63
On 20 Mar NATIONALUM was trading at 368.50. The strike last trading price was 5.8, which was -1.85 lower than the previous day. The implied volatity was 41.24, the open interest changed by -4 which decreased total open position to 63
On 19 Mar NATIONALUM was trading at 377.00. The strike last trading price was 7.9, which was -1.8 lower than the previous day. The implied volatity was 41.41, the open interest changed by 9 which increased total open position to 66
On 18 Mar NATIONALUM was trading at 387.65. The strike last trading price was 9.55, which was -3.1 lower than the previous day. The implied volatity was 38.32, the open interest changed by 13 which increased total open position to 57
On 17 Mar NATIONALUM was trading at 395.15. The strike last trading price was 12.8, which was 5.35 higher than the previous day. The implied volatity was 38.25, the open interest changed by 13 which increased total open position to 42
On 16 Mar NATIONALUM was trading at 372.25. The strike last trading price was 7.4, which was -3.6 lower than the previous day. The implied volatity was 42.46, the open interest changed by -13 which decreased total open position to 28
On 13 Mar NATIONALUM was trading at 387.35. The strike last trading price was 11, which was -8.6 lower than the previous day. The implied volatity was 39.45, the open interest changed by 11 which increased total open position to 40
On 12 Mar NATIONALUM was trading at 409.15. The strike last trading price was 19.6, which was 4.65 higher than the previous day. The implied volatity was 38.27, the open interest changed by 23 which increased total open position to 29
On 11 Mar NATIONALUM was trading at 397.75. The strike last trading price was 14.8, which was -0.7 lower than the previous day. The implied volatity was 37.9, the open interest changed by 7 which increased total open position to 8
On 10 Mar NATIONALUM was trading at 388.75. The strike last trading price was 15.5, which was -9.5 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 1
On 9 Mar NATIONALUM was trading at 388.10. The strike last trading price was 15.5, which was -9.5 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 1
On 6 Mar NATIONALUM was trading at 396.15. The strike last trading price was 15.5, which was -9.5 lower than the previous day. The implied volatity was 37.75, the open interest changed by 0 which decreased total open position to 0
On 5 Mar NATIONALUM was trading at 395.95. The strike last trading price was 25, which was 0 lower than the previous day. The implied volatity was 3.32, the open interest changed by 0 which decreased total open position to 0
On 4 Mar NATIONALUM was trading at 373.50. The strike last trading price was 25, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 2 Mar NATIONALUM was trading at 362.85. The strike last trading price was 25, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 27 Feb NATIONALUM was trading at 354.60. The strike last trading price was 25, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 26 Feb NATIONALUM was trading at 361.30. The strike last trading price was 25, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 1 Feb NATIONALUM was trading at 354.20. The strike last trading price was -, which was - lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 30 Jan NATIONALUM was trading at 385.45. The strike last trading price was 0, which was 0 lower than the previous day. The implied volatity was 2.14, the open interest changed by 0 which decreased total open position to 0
On 29 Jan NATIONALUM was trading at 428.85. The strike last trading price was 0, which was 0 lower than the previous day. The implied volatity was 0.63, the open interest changed by 0 which decreased total open position to 0
| NATIONALUM 28-Apr-2026 (4d) 420 PE | |||||||
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Delta: -0.12
Vega: 0
Theta: -0.28
Gamma: 0.01105
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| Date | Close | Ltp | Change | IV | Volume | OI Chg | OI |
| 23 Apr | 439.25 | 1.05 | -1.5999999999999999 | 33.59 | 888 | -40 | 635 |
| 22 Apr | 435.95 | 2.35 | -4.9 | 36.92 | 1,607 | -18 | 676 |
| 21 Apr | 422.95 | 7.15 | -0.09999999999999964 | 38.36 | 592 | 5 | 691 |
| 20 Apr | 426.65 | 7.5 | 2.6500000000000004 | 40.98 | 825 | 41 | 687 |
| 17 Apr | 438.75 | 4.85 | -1.9000000000000004 | 39.56 | 1,270 | 51 | 658 |
| 16 Apr | 432.70 | 6.6 | -4.65 | 40.42 | 1,409 | 282 | 609 |
| 15 Apr | 423.90 | 11.15 | -5.1 | 40.85 | 931 | 38 | 328 |
| 13 Apr | 418.05 | 15.85 | -0.6500000000000004 | 45.45 | 761 | 62 | 289 |
| 10 Apr | 417.00 | 15.75 | -3.8500000000000014 | 41.24 | 332 | 93 | 229 |
| 9 Apr | 412.35 | 19.5 | -7.7 | 45 | 151 | 16 | 137 |
| 8 Apr | 400.15 | 27.45 | 5.45 | 45.35 | 152 | -8 | 121 |
| 7 Apr | 411.75 | 21.8 | -3.3 | 47.71 | 133 | 40 | 129 |
| 6 Apr | 407.85 | 25.8 | -2.4 | 50.45 | 121 | 27 | 89 |
| 2 Apr | 401.80 | 28.3 | -0.25 | 45.01 | 33 | 0 | 62 |
| 1 Apr | 399.45 | 28.55 | -12.4 | 44.15 | 46 | 9 | 63 |
| 30 Mar | 386.10 | 41 | -10 | 51.34 | 7 | 3 | 56 |
| 27 Mar | 371.00 | 51 | 18.35 | 45.22 | 3 | 2 | 52 |
| 25 Mar | 367.30 | 32.65 | -21.3 | - | 0 | 0 | 50 |
| 24 Mar | 354.65 | 32.65 | -21.3 | - | 0 | 0 | 50 |
| 23 Mar | 349.75 | 32.65 | -21.3 | - | 0 | 0 | 50 |
| 20 Mar | 368.50 | 32.65 | -21.3 | - | 0 | 0 | 50 |
| 19 Mar | 377.00 | 32.65 | -21.3 | - | 0 | 0 | 50 |
| 18 Mar | 387.65 | 32.65 | -21.3 | - | 0 | 0 | 50 |
| 17 Mar | 395.15 | 32.65 | -21.3 | - | 0 | 0 | 50 |
| 16 Mar | 372.25 | 32.65 | -21.3 | - | 0 | 0 | 0 |
| 13 Mar | 387.35 | 32.65 | -21.3 | - | 0 | 0 | 0 |
| 12 Mar | 409.15 | 32.65 | -21.3 | - | 0 | 50 | 0 |
| 11 Mar | 397.75 | 32.65 | -21.3 | 39.57 | 52 | 50 | 50 |
| 10 Mar | 388.75 | 53.95 | 0 | - | 0 | 0 | 0 |
| 9 Mar | 388.10 | 53.95 | 0 | - | 0 | 0 | 0 |
| 6 Mar | 396.15 | 53.95 | 0 | - | 0 | 0 | 0 |
| 5 Mar | 395.95 | 53.95 | 0 | - | 0 | 0 | 0 |
| 4 Mar | 373.50 | 53.95 | 0 | - | 0 | 0 | 0 |
| 2 Mar | 362.85 | 53.95 | 0 | - | 0 | 0 | 0 |
| 27 Feb | 354.60 | 53.95 | 0 | - | 0 | 0 | 0 |
| 26 Feb | 361.30 | 53.95 | 0 | - | 0 | 0 | 0 |
| 1 Feb | 354.20 | - | - | - | 0 | 0 | 0 |
| 30 Jan | 385.45 | 0 | 0 | 2.8 | 0 | 0 | 0 |
| 29 Jan | 428.85 | 0 | 0 | 3.14 | 0 | 0 | 0 |
For National Aluminium Co Ltd - strike price 420 expiring on 28APR2026
Delta for 420 PE is -0.12
Historical price for 420 PE is as follows
On 23 Apr NATIONALUM was trading at 439.25. The strike last trading price was 1.05, which was -1.5999999999999999 lower than the previous day. The implied volatity was 33.59, the open interest changed by -40 which decreased total open position to 635
On 22 Apr NATIONALUM was trading at 435.95. The strike last trading price was 2.35, which was -4.9 lower than the previous day. The implied volatity was 36.92, the open interest changed by -18 which decreased total open position to 676
On 21 Apr NATIONALUM was trading at 422.95. The strike last trading price was 7.15, which was -0.09999999999999964 lower than the previous day. The implied volatity was 38.36, the open interest changed by 5 which increased total open position to 691
On 20 Apr NATIONALUM was trading at 426.65. The strike last trading price was 7.5, which was 2.6500000000000004 higher than the previous day. The implied volatity was 40.98, the open interest changed by 41 which increased total open position to 687
On 17 Apr NATIONALUM was trading at 438.75. The strike last trading price was 4.85, which was -1.9000000000000004 lower than the previous day. The implied volatity was 39.56, the open interest changed by 51 which increased total open position to 658
On 16 Apr NATIONALUM was trading at 432.70. The strike last trading price was 6.6, which was -4.65 lower than the previous day. The implied volatity was 40.42, the open interest changed by 282 which increased total open position to 609
On 15 Apr NATIONALUM was trading at 423.90. The strike last trading price was 11.15, which was -5.1 lower than the previous day. The implied volatity was 40.85, the open interest changed by 38 which increased total open position to 328
On 13 Apr NATIONALUM was trading at 418.05. The strike last trading price was 15.85, which was -0.6500000000000004 lower than the previous day. The implied volatity was 45.45, the open interest changed by 62 which increased total open position to 289
On 10 Apr NATIONALUM was trading at 417.00. The strike last trading price was 15.75, which was -3.8500000000000014 lower than the previous day. The implied volatity was 41.24, the open interest changed by 93 which increased total open position to 229
On 9 Apr NATIONALUM was trading at 412.35. The strike last trading price was 19.5, which was -7.7 lower than the previous day. The implied volatity was 45, the open interest changed by 16 which increased total open position to 137
On 8 Apr NATIONALUM was trading at 400.15. The strike last trading price was 27.45, which was 5.45 higher than the previous day. The implied volatity was 45.35, the open interest changed by -8 which decreased total open position to 121
On 7 Apr NATIONALUM was trading at 411.75. The strike last trading price was 21.8, which was -3.3 lower than the previous day. The implied volatity was 47.71, the open interest changed by 40 which increased total open position to 129
On 6 Apr NATIONALUM was trading at 407.85. The strike last trading price was 25.8, which was -2.4 lower than the previous day. The implied volatity was 50.45, the open interest changed by 27 which increased total open position to 89
On 2 Apr NATIONALUM was trading at 401.80. The strike last trading price was 28.3, which was -0.25 lower than the previous day. The implied volatity was 45.01, the open interest changed by 0 which decreased total open position to 62
On 1 Apr NATIONALUM was trading at 399.45. The strike last trading price was 28.55, which was -12.4 lower than the previous day. The implied volatity was 44.15, the open interest changed by 9 which increased total open position to 63
On 30 Mar NATIONALUM was trading at 386.10. The strike last trading price was 41, which was -10 lower than the previous day. The implied volatity was 51.34, the open interest changed by 3 which increased total open position to 56
On 27 Mar NATIONALUM was trading at 371.00. The strike last trading price was 51, which was 18.35 higher than the previous day. The implied volatity was 45.22, the open interest changed by 2 which increased total open position to 52
On 25 Mar NATIONALUM was trading at 367.30. The strike last trading price was 32.65, which was -21.3 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 50
On 24 Mar NATIONALUM was trading at 354.65. The strike last trading price was 32.65, which was -21.3 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 50
On 23 Mar NATIONALUM was trading at 349.75. The strike last trading price was 32.65, which was -21.3 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 50
On 20 Mar NATIONALUM was trading at 368.50. The strike last trading price was 32.65, which was -21.3 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 50
On 19 Mar NATIONALUM was trading at 377.00. The strike last trading price was 32.65, which was -21.3 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 50
On 18 Mar NATIONALUM was trading at 387.65. The strike last trading price was 32.65, which was -21.3 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 50
On 17 Mar NATIONALUM was trading at 395.15. The strike last trading price was 32.65, which was -21.3 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 50
On 16 Mar NATIONALUM was trading at 372.25. The strike last trading price was 32.65, which was -21.3 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 13 Mar NATIONALUM was trading at 387.35. The strike last trading price was 32.65, which was -21.3 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 12 Mar NATIONALUM was trading at 409.15. The strike last trading price was 32.65, which was -21.3 lower than the previous day. The implied volatity was -, the open interest changed by 50 which increased total open position to 0
On 11 Mar NATIONALUM was trading at 397.75. The strike last trading price was 32.65, which was -21.3 lower than the previous day. The implied volatity was 39.57, the open interest changed by 50 which increased total open position to 50
On 10 Mar NATIONALUM was trading at 388.75. The strike last trading price was 53.95, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 9 Mar NATIONALUM was trading at 388.10. The strike last trading price was 53.95, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 6 Mar NATIONALUM was trading at 396.15. The strike last trading price was 53.95, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 5 Mar NATIONALUM was trading at 395.95. The strike last trading price was 53.95, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 4 Mar NATIONALUM was trading at 373.50. The strike last trading price was 53.95, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 2 Mar NATIONALUM was trading at 362.85. The strike last trading price was 53.95, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 27 Feb NATIONALUM was trading at 354.60. The strike last trading price was 53.95, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 26 Feb NATIONALUM was trading at 361.30. The strike last trading price was 53.95, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 1 Feb NATIONALUM was trading at 354.20. The strike last trading price was -, which was - lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0
On 30 Jan NATIONALUM was trading at 385.45. The strike last trading price was 0, which was 0 lower than the previous day. The implied volatity was 2.8, the open interest changed by 0 which decreased total open position to 0
On 29 Jan NATIONALUM was trading at 428.85. The strike last trading price was 0, which was 0 lower than the previous day. The implied volatity was 3.14, the open interest changed by 0 which decreased total open position to 0
