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[--[65.84.65.76]--]
SBIN
State Bank Of India

804.25 -4.40 (-0.54%)

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Historical option data for SBIN

14 Nov 2024 04:10 PM IST
SBIN 28NOV2024 760 CE
Delta: 0.95
Vega: 0.17
Theta: -0.31
Gamma: 0.00
Date Close Ltp Change IV Volume Change OI OI
14 Nov 804.25 49.55 -7.95 19.85 24 11 141
13 Nov 808.65 57.5 -20.50 27.33 14 3 130
12 Nov 826.70 78 -18.00 48.55 11 4 127
11 Nov 847.65 96 7.00 49.53 2 0 124
8 Nov 843.15 89 -6.50 37.39 10 7 124
7 Nov 859.60 95.5 -8.70 - 4 0 119
6 Nov 854.80 104.2 9.10 39.90 11 -4 118
5 Nov 849.20 95.1 15.20 33.09 69 -7 122
4 Nov 829.85 79.9 8.65 33.63 39 7 129
1 Nov 821.20 71.25 -0.75 27.67 8 1 122
31 Oct 820.20 72 -2.45 - 69 0 121
30 Oct 822.45 74.45 -8.50 - 116 -68 126
29 Oct 832.70 82.95 33.00 - 321 -48 195
28 Oct 792.05 49.95 6.95 - 278 55 196
25 Oct 780.95 43 -7.05 - 149 46 141
24 Oct 794.55 50.05 5.70 - 55 16 95
23 Oct 786.00 44.35 -2.95 - 214 19 78
22 Oct 790.40 47.3 -19.80 - 79 53 59
21 Oct 813.95 67.1 -6.90 - 3 0 6
18 Oct 820.40 74 4.70 - 13 -5 7
17 Oct 811.05 69.3 8.30 - 6 4 11
16 Oct 805.45 61 -4.00 - 4 0 6
15 Oct 804.65 65 0.00 - 0 0 0
14 Oct 805.15 65 6.95 - 1 0 6
11 Oct 799.75 58.05 -1.95 - 2 1 6
10 Oct 797.10 60 8.50 - 4 3 4
9 Oct 797.40 51.5 0.00 - 0 0 0
8 Oct 781.45 51.5 7.90 - 2 0 1
7 Oct 770.65 43.6 -50.55 - 2 0 0
4 Oct 796.65 94.15 0.00 - 0 0 0
3 Oct 794.10 94.15 0.00 - 0 0 0
1 Oct 796.95 94.15 0.00 - 0 0 0
30 Sept 787.90 94.15 0.00 - 0 0 0
27 Sept 802.65 94.15 0.00 - 0 0 0
26 Sept 801.85 94.15 0.00 - 0 0 0
25 Sept 793.10 94.15 0.00 - 0 0 0
24 Sept 798.25 94.15 0.00 - 0 0 0
23 Sept 801.85 94.15 0.00 - 0 0 0
20 Sept 781.70 94.15 0.00 - 0 0 0
19 Sept 789.95 94.15 0.00 - 0 0 0
18 Sept 792.75 94.15 0.00 - 0 0 0
17 Sept 782.90 94.15 0.00 - 0 0 0
16 Sept 785.55 94.15 0.00 - 0 0 0
13 Sept 790.85 94.15 0.00 - 0 0 0
12 Sept 787.75 94.15 0.00 - 0 0 0
11 Sept 768.60 94.15 0.00 - 0 0 0
10 Sept 782.65 94.15 0.00 - 0 0 0
9 Sept 784.25 94.15 0.00 - 0 0 0
6 Sept 782.50 94.15 - 0 0 0


For State Bank Of India - strike price 760 expiring on 28NOV2024

Delta for 760 CE is 0.95

Historical price for 760 CE is as follows

On 14 Nov SBIN was trading at 804.25. The strike last trading price was 49.55, which was -7.95 lower than the previous day. The implied volatity was 19.85, the open interest changed by 11 which increased total open position to 141


On 13 Nov SBIN was trading at 808.65. The strike last trading price was 57.5, which was -20.50 lower than the previous day. The implied volatity was 27.33, the open interest changed by 3 which increased total open position to 130


On 12 Nov SBIN was trading at 826.70. The strike last trading price was 78, which was -18.00 lower than the previous day. The implied volatity was 48.55, the open interest changed by 4 which increased total open position to 127


On 11 Nov SBIN was trading at 847.65. The strike last trading price was 96, which was 7.00 higher than the previous day. The implied volatity was 49.53, the open interest changed by 0 which decreased total open position to 124


On 8 Nov SBIN was trading at 843.15. The strike last trading price was 89, which was -6.50 lower than the previous day. The implied volatity was 37.39, the open interest changed by 7 which increased total open position to 124


On 7 Nov SBIN was trading at 859.60. The strike last trading price was 95.5, which was -8.70 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 119


On 6 Nov SBIN was trading at 854.80. The strike last trading price was 104.2, which was 9.10 higher than the previous day. The implied volatity was 39.90, the open interest changed by -4 which decreased total open position to 118


On 5 Nov SBIN was trading at 849.20. The strike last trading price was 95.1, which was 15.20 higher than the previous day. The implied volatity was 33.09, the open interest changed by -7 which decreased total open position to 122


On 4 Nov SBIN was trading at 829.85. The strike last trading price was 79.9, which was 8.65 higher than the previous day. The implied volatity was 33.63, the open interest changed by 7 which increased total open position to 129


On 1 Nov SBIN was trading at 821.20. The strike last trading price was 71.25, which was -0.75 lower than the previous day. The implied volatity was 27.67, the open interest changed by 1 which increased total open position to 122


On 31 Oct SBIN was trading at 820.20. The strike last trading price was 72, which was -2.45 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 30 Oct SBIN was trading at 822.45. The strike last trading price was 74.45, which was -8.50 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 29 Oct SBIN was trading at 832.70. The strike last trading price was 82.95, which was 33.00 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 28 Oct SBIN was trading at 792.05. The strike last trading price was 49.95, which was 6.95 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 25 Oct SBIN was trading at 780.95. The strike last trading price was 43, which was -7.05 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 24 Oct SBIN was trading at 794.55. The strike last trading price was 50.05, which was 5.70 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 23 Oct SBIN was trading at 786.00. The strike last trading price was 44.35, which was -2.95 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 22 Oct SBIN was trading at 790.40. The strike last trading price was 47.3, which was -19.80 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 21 Oct SBIN was trading at 813.95. The strike last trading price was 67.1, which was -6.90 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 18 Oct SBIN was trading at 820.40. The strike last trading price was 74, which was 4.70 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 17 Oct SBIN was trading at 811.05. The strike last trading price was 69.3, which was 8.30 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 16 Oct SBIN was trading at 805.45. The strike last trading price was 61, which was -4.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 15 Oct SBIN was trading at 804.65. The strike last trading price was 65, 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 SBIN was trading at 805.15. The strike last trading price was 65, which was 6.95 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 11 Oct SBIN was trading at 799.75. The strike last trading price was 58.05, which was -1.95 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 10 Oct SBIN was trading at 797.10. The strike last trading price was 60, which was 8.50 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 9 Oct SBIN was trading at 797.40. The strike last trading price was 51.5, 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 8 Oct SBIN was trading at 781.45. The strike last trading price was 51.5, which was 7.90 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 7 Oct SBIN was trading at 770.65. The strike last trading price was 43.6, which was -50.55 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 4 Oct SBIN was trading at 796.65. The strike last trading price was 94.15, 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 SBIN was trading at 794.10. The strike last trading price was 94.15, 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 SBIN was trading at 796.95. The strike last trading price was 94.15, 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 30 Sept SBIN was trading at 787.90. The strike last trading price was 94.15, 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 27 Sept SBIN was trading at 802.65. The strike last trading price was 94.15, 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 26 Sept SBIN was trading at 801.85. The strike last trading price was 94.15, 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 25 Sept SBIN was trading at 793.10. The strike last trading price was 94.15, 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 Sept SBIN was trading at 798.25. The strike last trading price was 94.15, 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 Sept SBIN was trading at 801.85. The strike last trading price was 94.15, 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 20 Sept SBIN was trading at 781.70. The strike last trading price was 94.15, 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 19 Sept SBIN was trading at 789.95. The strike last trading price was 94.15, 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 Sept SBIN was trading at 792.75. The strike last trading price was 94.15, 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 Sept SBIN was trading at 782.90. The strike last trading price was 94.15, 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 16 Sept SBIN was trading at 785.55. The strike last trading price was 94.15, 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 13 Sept SBIN was trading at 790.85. The strike last trading price was 94.15, 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 12 Sept SBIN was trading at 787.75. The strike last trading price was 94.15, 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 Sept SBIN was trading at 768.60. The strike last trading price was 94.15, 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 10 Sept SBIN was trading at 782.65. The strike last trading price was 94.15, 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 9 Sept SBIN was trading at 784.25. The strike last trading price was 94.15, 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 6 Sept SBIN was trading at 782.50. The strike last trading price was 94.15, which was lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


SBIN 28NOV2024 760 PE
Delta: -0.10
Vega: 0.29
Theta: -0.24
Gamma: 0.00
Date Close Ltp Change IV Volume Change OI OI
14 Nov 804.25 2.1 -0.05 25.99 2,838 65 1,877
13 Nov 808.65 2.15 0.60 27.57 3,123 -432 1,819
12 Nov 826.70 1.55 0.55 28.81 2,155 -68 2,311
11 Nov 847.65 1 -0.60 30.71 1,593 57 2,379
8 Nov 843.15 1.6 -0.20 30.17 3,886 199 2,323
7 Nov 859.60 1.8 0.00 34.58 648 72 2,124
6 Nov 854.80 1.8 -1.35 33.25 1,440 287 2,074
5 Nov 849.20 3.15 -1.70 35.19 2,921 359 1,788
4 Nov 829.85 4.85 -1.40 34.04 3,437 338 1,426
1 Nov 821.20 6.25 0.20 32.80 157 12 1,090
31 Oct 820.20 6.05 1.20 - 1,048 -188 1,078
30 Oct 822.45 4.85 0.35 - 1,317 -162 1,267
29 Oct 832.70 4.5 -6.00 - 4,160 -301 1,430
28 Oct 792.05 10.5 -3.45 - 2,098 -212 1,732
25 Oct 780.95 13.95 5.05 - 1,373 30 1,944
24 Oct 794.55 8.9 -3.30 - 303 23 1,914
23 Oct 786.00 12.2 1.85 - 653 127 1,891
22 Oct 790.40 10.35 4.15 - 1,936 1,492 1,764
21 Oct 813.95 6.2 0.95 - 143 38 272
18 Oct 820.40 5.25 -1.75 - 159 56 234
17 Oct 811.05 7 -0.15 - 91 -28 177
16 Oct 805.45 7.15 -0.35 - 44 -6 204
15 Oct 804.65 7.5 -1.60 - 40 6 209
14 Oct 805.15 9.1 -2.15 - 37 -1 203
11 Oct 799.75 11.25 -0.95 - 14 0 205
10 Oct 797.10 12.2 -0.90 - 18 1 205
9 Oct 797.40 13.1 -6.45 - 44 -1 204
8 Oct 781.45 19.55 2.25 - 80 12 206
7 Oct 770.65 17.3 5.25 - 113 2 194
4 Oct 796.65 12.05 -0.45 - 32 -15 193
3 Oct 794.10 12.5 1.15 - 72 21 208
1 Oct 796.95 11.35 -3.45 - 48 1 189
30 Sept 787.90 14.8 4.60 - 75 46 188
27 Sept 802.65 10.2 -1.45 - 26 12 139
26 Sept 801.85 11.65 -2.35 - 4 -2 126
25 Sept 793.10 14 1.00 - 19 12 127
24 Sept 798.25 13 -0.50 - 30 21 113
23 Sept 801.85 13.5 -8.50 - 43 29 92
20 Sept 781.70 22 3.00 - 15 13 62
19 Sept 789.95 19 3.20 - 4 3 49
18 Sept 792.75 15.8 -0.45 - 47 40 45
17 Sept 782.90 16.25 2.25 - 2 1 4
16 Sept 785.55 14 0.00 - 1 0 2
13 Sept 790.85 14 -4.50 - 2 0 2
12 Sept 787.75 18.5 0.00 - 0 0 0
11 Sept 768.60 18.5 0.00 - 0 0 0
10 Sept 782.65 18.5 0.00 - 0 2 0
9 Sept 784.25 18.5 -7.50 - 2 0 0
6 Sept 782.50 26 - 0 0 0


For State Bank Of India - strike price 760 expiring on 28NOV2024

Delta for 760 PE is -0.10

Historical price for 760 PE is as follows

On 14 Nov SBIN was trading at 804.25. The strike last trading price was 2.1, which was -0.05 lower than the previous day. The implied volatity was 25.99, the open interest changed by 65 which increased total open position to 1877


On 13 Nov SBIN was trading at 808.65. The strike last trading price was 2.15, which was 0.60 higher than the previous day. The implied volatity was 27.57, the open interest changed by -432 which decreased total open position to 1819


On 12 Nov SBIN was trading at 826.70. The strike last trading price was 1.55, which was 0.55 higher than the previous day. The implied volatity was 28.81, the open interest changed by -68 which decreased total open position to 2311


On 11 Nov SBIN was trading at 847.65. The strike last trading price was 1, which was -0.60 lower than the previous day. The implied volatity was 30.71, the open interest changed by 57 which increased total open position to 2379


On 8 Nov SBIN was trading at 843.15. The strike last trading price was 1.6, which was -0.20 lower than the previous day. The implied volatity was 30.17, the open interest changed by 199 which increased total open position to 2323


On 7 Nov SBIN was trading at 859.60. The strike last trading price was 1.8, which was 0.00 lower than the previous day. The implied volatity was 34.58, the open interest changed by 72 which increased total open position to 2124


On 6 Nov SBIN was trading at 854.80. The strike last trading price was 1.8, which was -1.35 lower than the previous day. The implied volatity was 33.25, the open interest changed by 287 which increased total open position to 2074


On 5 Nov SBIN was trading at 849.20. The strike last trading price was 3.15, which was -1.70 lower than the previous day. The implied volatity was 35.19, the open interest changed by 359 which increased total open position to 1788


On 4 Nov SBIN was trading at 829.85. The strike last trading price was 4.85, which was -1.40 lower than the previous day. The implied volatity was 34.04, the open interest changed by 338 which increased total open position to 1426


On 1 Nov SBIN was trading at 821.20. The strike last trading price was 6.25, which was 0.20 higher than the previous day. The implied volatity was 32.80, the open interest changed by 12 which increased total open position to 1090


On 31 Oct SBIN was trading at 820.20. The strike last trading price was 6.05, which was 1.20 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 30 Oct SBIN was trading at 822.45. The strike last trading price was 4.85, which was 0.35 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 29 Oct SBIN was trading at 832.70. The strike last trading price was 4.5, which was -6.00 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 28 Oct SBIN was trading at 792.05. The strike last trading price was 10.5, which was -3.45 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 25 Oct SBIN was trading at 780.95. The strike last trading price was 13.95, which was 5.05 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 24 Oct SBIN was trading at 794.55. The strike last trading price was 8.9, which was -3.30 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 23 Oct SBIN was trading at 786.00. The strike last trading price was 12.2, which was 1.85 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 22 Oct SBIN was trading at 790.40. The strike last trading price was 10.35, which was 4.15 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 21 Oct SBIN was trading at 813.95. The strike last trading price was 6.2, which was 0.95 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 18 Oct SBIN was trading at 820.40. The strike last trading price was 5.25, which was -1.75 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 17 Oct SBIN was trading at 811.05. The strike last trading price was 7, which was -0.15 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 16 Oct SBIN was trading at 805.45. The strike last trading price was 7.15, which was -0.35 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 15 Oct SBIN was trading at 804.65. The strike last trading price was 7.5, which was -1.60 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 14 Oct SBIN was trading at 805.15. The strike last trading price was 9.1, which was -2.15 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 11 Oct SBIN was trading at 799.75. The strike last trading price was 11.25, which was -0.95 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 10 Oct SBIN was trading at 797.10. The strike last trading price was 12.2, which was -0.90 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 9 Oct SBIN was trading at 797.40. The strike last trading price was 13.1, which was -6.45 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 8 Oct SBIN was trading at 781.45. The strike last trading price was 19.55, which was 2.25 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 7 Oct SBIN was trading at 770.65. The strike last trading price was 17.3, which was 5.25 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 4 Oct SBIN was trading at 796.65. The strike last trading price was 12.05, which was -0.45 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 3 Oct SBIN was trading at 794.10. The strike last trading price was 12.5, which was 1.15 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 1 Oct SBIN was trading at 796.95. The strike last trading price was 11.35, which was -3.45 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 30 Sept SBIN was trading at 787.90. The strike last trading price was 14.8, which was 4.60 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 27 Sept SBIN was trading at 802.65. The strike last trading price was 10.2, which was -1.45 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 26 Sept SBIN was trading at 801.85. The strike last trading price was 11.65, which was -2.35 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 25 Sept SBIN was trading at 793.10. The strike last trading price was 14, which was 1.00 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 24 Sept SBIN was trading at 798.25. The strike last trading price was 13, which was -0.50 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 23 Sept SBIN was trading at 801.85. The strike last trading price was 13.5, which was -8.50 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 20 Sept SBIN was trading at 781.70. The strike last trading price was 22, which was 3.00 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 19 Sept SBIN was trading at 789.95. The strike last trading price was 19, which was 3.20 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 18 Sept SBIN was trading at 792.75. The strike last trading price was 15.8, which was -0.45 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 17 Sept SBIN was trading at 782.90. The strike last trading price was 16.25, which was 2.25 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 16 Sept SBIN was trading at 785.55. The strike last trading price was 14, 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 13 Sept SBIN was trading at 790.85. The strike last trading price was 14, which was -4.50 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 12 Sept SBIN was trading at 787.75. The strike last trading price was 18.5, 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 Sept SBIN was trading at 768.60. The strike last trading price was 18.5, 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 10 Sept SBIN was trading at 782.65. The strike last trading price was 18.5, 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 9 Sept SBIN was trading at 784.25. The strike last trading price was 18.5, which was -7.50 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 6 Sept SBIN was trading at 782.50. The strike last trading price was 26, which was lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to