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[--[65.84.65.76]--]
NATIONALUM
National Aluminium Co Ltd

215.36 -5.51 (-2.49%)

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Historical option data for NATIONALUM

20 Dec 2024 04:10 PM IST
NATIONALUM 26DEC2024 245 CE
Delta: 0.03
Vega: 0.02
Theta: -0.08
Gamma: 0.00
Date Close Ltp Change IV Volume Change OI OI
20 Dec 215.36 0.15 -0.25 51.29 750 -78 793
19 Dec 220.87 0.4 -0.20 48.13 76 -59 872
18 Dec 226.88 0.6 -0.15 38.44 81 -66 932
17 Dec 226.63 0.75 0.30 39.54 57 -56 999
16 Dec 219.91 0.45 -0.55 41.88 68 -66 1,057
13 Dec 226.46 1 -1.40 35.79 333 -330 1,126
12 Dec 230.78 2.4 -8.05 38.09 7,719 964 1,461
11 Dec 249.53 10.45 -0.90 38.59 537 -23 496
10 Dec 250.21 11.35 -1.70 39.18 442 -4 520
9 Dec 250.56 13.05 1.85 39.17 884 -58 524
6 Dec 248.26 11.2 0.10 38.88 844 -7 588
5 Dec 248.79 11.1 1.55 36.83 1,125 -182 597
4 Dec 245.16 9.55 -1.35 36.32 1,233 102 782
3 Dec 246.87 10.9 1.50 38.65 1,592 132 676
2 Dec 243.30 9.4 -0.20 38.58 585 56 549
29 Nov 242.14 9.6 -2.55 37.77 1,053 228 495
28 Nov 249.02 12.15 1.40 30.84 574 66 273
27 Nov 246.29 10.75 -0.70 31.86 529 135 210
26 Nov 249.95 11.45 -1.05 29.39 61 18 75
25 Nov 251.37 12.5 -5.50 24.53 4 -12 57
22 Nov 256.85 18 6.00 32.00 11 -10 59
21 Nov 248.21 12 4.50 30.43 177 10 69
20 Nov 240.31 7.5 0.00 29.27 104 -8 59
19 Nov 240.31 7.5 0.40 29.27 104 -8 59
18 Nov 239.93 7.1 4.20 28.44 145 50 68
14 Nov 219.87 2.9 -2.60 33.78 10 4 17
13 Nov 219.69 5.5 0.00 0.00 0 4 0
12 Nov 225.91 5.5 -3.00 36.93 5 2 11
11 Nov 232.67 8.5 -3.45 36.28 8 4 5
8 Nov 238.89 11.95 0.00 0.00 0 0 0
7 Nov 238.63 11.95 -3.60 38.14 2 0 1
6 Nov 244.98 15.55 5.45 38.37 1 0 0
5 Nov 235.03 10.1 0.00 2.59 0 0 0
29 Oct 228.25 10.1 0.00 - 0 0 0
28 Oct 223.79 10.1 0.00 - 0 0 0
24 Oct 226.35 10.1 0.00 - 0 0 0
23 Oct 224.01 10.1 0.00 - 0 0 0
22 Oct 220.47 10.1 0.00 - 0 0 0
21 Oct 230.00 10.1 0.00 - 0 0 0
18 Oct 232.12 10.1 10.10 - 0 0 0
17 Oct 225.17 0 0.00 - 0 0 0
14 Oct 226.56 0 0.00 - 0 0 0
11 Oct 222.92 0 0.00 - 0 0 0
4 Oct 220.35 0 0.00 - 0 0 0
3 Oct 222.55 0 0.00 - 0 0 0
1 Oct 224.23 0 - 0 0 0


For National Aluminium Co Ltd - strike price 245 expiring on 26DEC2024

Delta for 245 CE is 0.03

Historical price for 245 CE is as follows

On 20 Dec NATIONALUM was trading at 215.36. The strike last trading price was 0.15, which was -0.25 lower than the previous day. The implied volatity was 51.29, the open interest changed by -78 which decreased total open position to 793


On 19 Dec NATIONALUM was trading at 220.87. The strike last trading price was 0.4, which was -0.20 lower than the previous day. The implied volatity was 48.13, the open interest changed by -59 which decreased total open position to 872


On 18 Dec NATIONALUM was trading at 226.88. The strike last trading price was 0.6, which was -0.15 lower than the previous day. The implied volatity was 38.44, the open interest changed by -66 which decreased total open position to 932


On 17 Dec NATIONALUM was trading at 226.63. The strike last trading price was 0.75, which was 0.30 higher than the previous day. The implied volatity was 39.54, the open interest changed by -56 which decreased total open position to 999


On 16 Dec NATIONALUM was trading at 219.91. The strike last trading price was 0.45, which was -0.55 lower than the previous day. The implied volatity was 41.88, the open interest changed by -66 which decreased total open position to 1057


On 13 Dec NATIONALUM was trading at 226.46. The strike last trading price was 1, which was -1.40 lower than the previous day. The implied volatity was 35.79, the open interest changed by -330 which decreased total open position to 1126


On 12 Dec NATIONALUM was trading at 230.78. The strike last trading price was 2.4, which was -8.05 lower than the previous day. The implied volatity was 38.09, the open interest changed by 964 which increased total open position to 1461


On 11 Dec NATIONALUM was trading at 249.53. The strike last trading price was 10.45, which was -0.90 lower than the previous day. The implied volatity was 38.59, the open interest changed by -23 which decreased total open position to 496


On 10 Dec NATIONALUM was trading at 250.21. The strike last trading price was 11.35, which was -1.70 lower than the previous day. The implied volatity was 39.18, the open interest changed by -4 which decreased total open position to 520


On 9 Dec NATIONALUM was trading at 250.56. The strike last trading price was 13.05, which was 1.85 higher than the previous day. The implied volatity was 39.17, the open interest changed by -58 which decreased total open position to 524


On 6 Dec NATIONALUM was trading at 248.26. The strike last trading price was 11.2, which was 0.10 higher than the previous day. The implied volatity was 38.88, the open interest changed by -7 which decreased total open position to 588


On 5 Dec NATIONALUM was trading at 248.79. The strike last trading price was 11.1, which was 1.55 higher than the previous day. The implied volatity was 36.83, the open interest changed by -182 which decreased total open position to 597


On 4 Dec NATIONALUM was trading at 245.16. The strike last trading price was 9.55, which was -1.35 lower than the previous day. The implied volatity was 36.32, the open interest changed by 102 which increased total open position to 782


On 3 Dec NATIONALUM was trading at 246.87. The strike last trading price was 10.9, which was 1.50 higher than the previous day. The implied volatity was 38.65, the open interest changed by 132 which increased total open position to 676


On 2 Dec NATIONALUM was trading at 243.30. The strike last trading price was 9.4, which was -0.20 lower than the previous day. The implied volatity was 38.58, the open interest changed by 56 which increased total open position to 549


On 29 Nov NATIONALUM was trading at 242.14. The strike last trading price was 9.6, which was -2.55 lower than the previous day. The implied volatity was 37.77, the open interest changed by 228 which increased total open position to 495


On 28 Nov NATIONALUM was trading at 249.02. The strike last trading price was 12.15, which was 1.40 higher than the previous day. The implied volatity was 30.84, the open interest changed by 66 which increased total open position to 273


On 27 Nov NATIONALUM was trading at 246.29. The strike last trading price was 10.75, which was -0.70 lower than the previous day. The implied volatity was 31.86, the open interest changed by 135 which increased total open position to 210


On 26 Nov NATIONALUM was trading at 249.95. The strike last trading price was 11.45, which was -1.05 lower than the previous day. The implied volatity was 29.39, the open interest changed by 18 which increased total open position to 75


On 25 Nov NATIONALUM was trading at 251.37. The strike last trading price was 12.5, which was -5.50 lower than the previous day. The implied volatity was 24.53, the open interest changed by -12 which decreased total open position to 57


On 22 Nov NATIONALUM was trading at 256.85. The strike last trading price was 18, which was 6.00 higher than the previous day. The implied volatity was 32.00, the open interest changed by -10 which decreased total open position to 59


On 21 Nov NATIONALUM was trading at 248.21. The strike last trading price was 12, which was 4.50 higher than the previous day. The implied volatity was 30.43, the open interest changed by 10 which increased total open position to 69


On 20 Nov NATIONALUM was trading at 240.31. The strike last trading price was 7.5, which was 0.00 lower than the previous day. The implied volatity was 29.27, the open interest changed by -8 which decreased total open position to 59


On 19 Nov NATIONALUM was trading at 240.31. The strike last trading price was 7.5, which was 0.40 higher than the previous day. The implied volatity was 29.27, the open interest changed by -8 which decreased total open position to 59


On 18 Nov NATIONALUM was trading at 239.93. The strike last trading price was 7.1, which was 4.20 higher than the previous day. The implied volatity was 28.44, the open interest changed by 50 which increased total open position to 68


On 14 Nov NATIONALUM was trading at 219.87. The strike last trading price was 2.9, which was -2.60 lower than the previous day. The implied volatity was 33.78, the open interest changed by 4 which increased total open position to 17


On 13 Nov NATIONALUM was trading at 219.69. The strike last trading price was 5.5, which was 0.00 lower than the previous day. The implied volatity was 0.00, the open interest changed by 4 which increased total open position to 0


On 12 Nov NATIONALUM was trading at 225.91. The strike last trading price was 5.5, which was -3.00 lower than the previous day. The implied volatity was 36.93, the open interest changed by 2 which increased total open position to 11


On 11 Nov NATIONALUM was trading at 232.67. The strike last trading price was 8.5, which was -3.45 lower than the previous day. The implied volatity was 36.28, the open interest changed by 4 which increased total open position to 5


On 8 Nov NATIONALUM was trading at 238.89. The strike last trading price was 11.95, which was 0.00 lower than the previous day. The implied volatity was 0.00, the open interest changed by 0 which decreased total open position to 0


On 7 Nov NATIONALUM was trading at 238.63. The strike last trading price was 11.95, which was -3.60 lower than the previous day. The implied volatity was 38.14, the open interest changed by 0 which decreased total open position to 1


On 6 Nov NATIONALUM was trading at 244.98. The strike last trading price was 15.55, which was 5.45 higher than the previous day. The implied volatity was 38.37, the open interest changed by 0 which decreased total open position to 0


On 5 Nov NATIONALUM was trading at 235.03. The strike last trading price was 10.1, which was 0.00 lower than the previous day. The implied volatity was 2.59, the open interest changed by 0 which decreased total open position to 0


On 29 Oct NATIONALUM was trading at 228.25. The strike last trading price was 10.1, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 28 Oct NATIONALUM was trading at 223.79. The strike last trading price was 10.1, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 24 Oct NATIONALUM was trading at 226.35. The strike last trading price was 10.1, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 23 Oct NATIONALUM was trading at 224.01. The strike last trading price was 10.1, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 22 Oct NATIONALUM was trading at 220.47. The strike last trading price was 10.1, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 21 Oct NATIONALUM was trading at 230.00. The strike last trading price was 10.1, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 18 Oct NATIONALUM was trading at 232.12. The strike last trading price was 10.1, which was 10.10 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 17 Oct NATIONALUM was trading at 225.17. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 14 Oct NATIONALUM was trading at 226.56. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 11 Oct NATIONALUM was trading at 222.92. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 4 Oct NATIONALUM was trading at 220.35. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 3 Oct NATIONALUM was trading at 222.55. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 1 Oct NATIONALUM was trading at 224.23. The strike last trading price was 0, which was lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


NATIONALUM 26DEC2024 245 PE
Delta: -0.98
Vega: 0.01
Theta: 0.01
Gamma: 0.00
Date Close Ltp Change IV Volume Change OI OI
20 Dec 215.36 29.4 14.20 48.32 100 -35 360
19 Dec 220.87 15.2 0.00 0.00 0 0 0
18 Dec 226.88 15.2 0.00 0.00 0 -9 0
17 Dec 226.63 15.2 -8.00 - 9 -8 396
16 Dec 219.91 23.2 6.00 - 1 0 405
13 Dec 226.46 17.2 1.95 - 13 -11 407
12 Dec 230.78 15.25 9.75 37.37 2,459 -135 425
11 Dec 249.53 5.5 0.25 38.87 1,073 77 561
10 Dec 250.21 5.25 0.35 38.03 686 15 487
9 Dec 250.56 4.9 -1.50 39.11 818 34 466
6 Dec 248.26 6.4 -0.40 36.39 982 43 432
5 Dec 248.79 6.8 -1.70 37.72 878 46 390
4 Dec 245.16 8.5 0.20 38.92 492 14 334
3 Dec 246.87 8.3 -1.35 39.18 519 74 388
2 Dec 243.30 9.65 -0.70 38.00 224 16 314
29 Nov 242.14 10.35 0.55 37.94 585 68 294
28 Nov 249.02 9.8 -2.10 47.27 534 54 227
27 Nov 246.29 11.9 0.50 49.69 449 54 173
26 Nov 249.95 11.4 1.40 50.14 185 100 119
25 Nov 251.37 10 2.10 49.21 1 -3 20
22 Nov 256.85 7.9 -3.10 45.41 3 -2 21
21 Nov 248.21 11 -3.85 44.28 40 19 23
20 Nov 240.31 14.85 0.00 43.22 6 4 3
19 Nov 240.31 14.85 -32.85 43.22 6 3 3
18 Nov 239.93 47.7 0.00 - 0 0 0
14 Nov 219.87 47.7 0.00 - 0 0 0
13 Nov 219.69 47.7 0.00 - 0 0 0
12 Nov 225.91 47.7 0.00 - 0 0 0
11 Nov 232.67 47.7 0.00 - 0 0 0
8 Nov 238.89 47.7 0.00 - 0 0 0
7 Nov 238.63 47.7 0.00 - 0 0 0
6 Nov 244.98 47.7 0.00 1.26 0 0 0
5 Nov 235.03 47.7 47.70 - 0 0 0
29 Oct 228.25 0 0.00 - 0 0 0
28 Oct 223.79 0 0.00 - 0 0 0
24 Oct 226.35 0 0.00 - 0 0 0
23 Oct 224.01 0 0.00 - 0 0 0
22 Oct 220.47 0 0.00 - 0 0 0
21 Oct 230.00 0 0.00 - 0 0 0
18 Oct 232.12 0 0.00 - 0 0 0
17 Oct 225.17 0 0.00 - 0 0 0
14 Oct 226.56 0 0.00 - 0 0 0
11 Oct 222.92 0 0.00 - 0 0 0
4 Oct 220.35 0 0.00 - 0 0 0
3 Oct 222.55 0 0.00 - 0 0 0
1 Oct 224.23 0 - 0 0 0


For National Aluminium Co Ltd - strike price 245 expiring on 26DEC2024

Delta for 245 PE is -0.98

Historical price for 245 PE is as follows

On 20 Dec NATIONALUM was trading at 215.36. The strike last trading price was 29.4, which was 14.20 higher than the previous day. The implied volatity was 48.32, the open interest changed by -35 which decreased total open position to 360


On 19 Dec NATIONALUM was trading at 220.87. The strike last trading price was 15.2, which was 0.00 lower than the previous day. The implied volatity was 0.00, the open interest changed by 0 which decreased total open position to 0


On 18 Dec NATIONALUM was trading at 226.88. The strike last trading price was 15.2, which was 0.00 lower than the previous day. The implied volatity was 0.00, the open interest changed by -9 which decreased total open position to 0


On 17 Dec NATIONALUM was trading at 226.63. The strike last trading price was 15.2, which was -8.00 lower than the previous day. The implied volatity was -, the open interest changed by -8 which decreased total open position to 396


On 16 Dec NATIONALUM was trading at 219.91. The strike last trading price was 23.2, which was 6.00 higher than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 405


On 13 Dec NATIONALUM was trading at 226.46. The strike last trading price was 17.2, which was 1.95 higher than the previous day. The implied volatity was -, the open interest changed by -11 which decreased total open position to 407


On 12 Dec NATIONALUM was trading at 230.78. The strike last trading price was 15.25, which was 9.75 higher than the previous day. The implied volatity was 37.37, the open interest changed by -135 which decreased total open position to 425


On 11 Dec NATIONALUM was trading at 249.53. The strike last trading price was 5.5, which was 0.25 higher than the previous day. The implied volatity was 38.87, the open interest changed by 77 which increased total open position to 561


On 10 Dec NATIONALUM was trading at 250.21. The strike last trading price was 5.25, which was 0.35 higher than the previous day. The implied volatity was 38.03, the open interest changed by 15 which increased total open position to 487


On 9 Dec NATIONALUM was trading at 250.56. The strike last trading price was 4.9, which was -1.50 lower than the previous day. The implied volatity was 39.11, the open interest changed by 34 which increased total open position to 466


On 6 Dec NATIONALUM was trading at 248.26. The strike last trading price was 6.4, which was -0.40 lower than the previous day. The implied volatity was 36.39, the open interest changed by 43 which increased total open position to 432


On 5 Dec NATIONALUM was trading at 248.79. The strike last trading price was 6.8, which was -1.70 lower than the previous day. The implied volatity was 37.72, the open interest changed by 46 which increased total open position to 390


On 4 Dec NATIONALUM was trading at 245.16. The strike last trading price was 8.5, which was 0.20 higher than the previous day. The implied volatity was 38.92, the open interest changed by 14 which increased total open position to 334


On 3 Dec NATIONALUM was trading at 246.87. The strike last trading price was 8.3, which was -1.35 lower than the previous day. The implied volatity was 39.18, the open interest changed by 74 which increased total open position to 388


On 2 Dec NATIONALUM was trading at 243.30. The strike last trading price was 9.65, which was -0.70 lower than the previous day. The implied volatity was 38.00, the open interest changed by 16 which increased total open position to 314


On 29 Nov NATIONALUM was trading at 242.14. The strike last trading price was 10.35, which was 0.55 higher than the previous day. The implied volatity was 37.94, the open interest changed by 68 which increased total open position to 294


On 28 Nov NATIONALUM was trading at 249.02. The strike last trading price was 9.8, which was -2.10 lower than the previous day. The implied volatity was 47.27, the open interest changed by 54 which increased total open position to 227


On 27 Nov NATIONALUM was trading at 246.29. The strike last trading price was 11.9, which was 0.50 higher than the previous day. The implied volatity was 49.69, the open interest changed by 54 which increased total open position to 173


On 26 Nov NATIONALUM was trading at 249.95. The strike last trading price was 11.4, which was 1.40 higher than the previous day. The implied volatity was 50.14, the open interest changed by 100 which increased total open position to 119


On 25 Nov NATIONALUM was trading at 251.37. The strike last trading price was 10, which was 2.10 higher than the previous day. The implied volatity was 49.21, the open interest changed by -3 which decreased total open position to 20


On 22 Nov NATIONALUM was trading at 256.85. The strike last trading price was 7.9, which was -3.10 lower than the previous day. The implied volatity was 45.41, the open interest changed by -2 which decreased total open position to 21


On 21 Nov NATIONALUM was trading at 248.21. The strike last trading price was 11, which was -3.85 lower than the previous day. The implied volatity was 44.28, the open interest changed by 19 which increased total open position to 23


On 20 Nov NATIONALUM was trading at 240.31. The strike last trading price was 14.85, which was 0.00 lower than the previous day. The implied volatity was 43.22, the open interest changed by 4 which increased total open position to 3


On 19 Nov NATIONALUM was trading at 240.31. The strike last trading price was 14.85, which was -32.85 lower than the previous day. The implied volatity was 43.22, the open interest changed by 3 which increased total open position to 3


On 18 Nov NATIONALUM was trading at 239.93. The strike last trading price was 47.7, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0


On 14 Nov NATIONALUM was trading at 219.87. The strike last trading price was 47.7, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0


On 13 Nov NATIONALUM was trading at 219.69. The strike last trading price was 47.7, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0


On 12 Nov NATIONALUM was trading at 225.91. The strike last trading price was 47.7, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0


On 11 Nov NATIONALUM was trading at 232.67. The strike last trading price was 47.7, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0


On 8 Nov NATIONALUM was trading at 238.89. The strike last trading price was 47.7, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0


On 7 Nov NATIONALUM was trading at 238.63. The strike last trading price was 47.7, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0


On 6 Nov NATIONALUM was trading at 244.98. The strike last trading price was 47.7, which was 0.00 lower than the previous day. The implied volatity was 1.26, the open interest changed by 0 which decreased total open position to 0


On 5 Nov NATIONALUM was trading at 235.03. The strike last trading price was 47.7, which was 47.70 higher than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0


On 29 Oct NATIONALUM was trading at 228.25. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 28 Oct NATIONALUM was trading at 223.79. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 24 Oct NATIONALUM was trading at 226.35. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 23 Oct NATIONALUM was trading at 224.01. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 22 Oct NATIONALUM was trading at 220.47. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 21 Oct NATIONALUM was trading at 230.00. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 18 Oct NATIONALUM was trading at 232.12. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 17 Oct NATIONALUM was trading at 225.17. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 14 Oct NATIONALUM was trading at 226.56. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 11 Oct NATIONALUM was trading at 222.92. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 4 Oct NATIONALUM was trading at 220.35. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 3 Oct NATIONALUM was trading at 222.55. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 1 Oct NATIONALUM was trading at 224.23. The strike last trading price was 0, which was lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to