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[--[65.84.65.76]--]
APOLLOTYRE
Apollo Tyres Ltd

474.85 18.25 (4.00%)

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Historical option data for APOLLOTYRE

14 Nov 2024 12:30 PM IST
APOLLOTYRE 28NOV2024 500 CE
Delta: 0.17
Vega: 0.24
Theta: -0.24
Gamma: 0.01
Date Close Ltp Change IV Volume Change OI OI
14 Nov 474.10 2.2 0.75 26.01 2,787 135 923
13 Nov 456.60 1.45 -3.55 32.04 2,743 -173 797
12 Nov 471.35 5 -2.30 36.75 1,399 5 968
11 Nov 483.25 7.3 -1.90 32.41 1,870 18 967
8 Nov 491.05 9.2 -3.95 24.58 1,372 34 949
7 Nov 497.50 13.15 0.20 26.26 1,500 160 916
6 Nov 490.40 12.95 1.75 32.40 1,559 21 758
5 Nov 482.45 11.2 1.05 35.64 1,425 236 736
4 Nov 485.20 10.15 -4.95 30.57 939 144 500
1 Nov 503.20 15.1 -0.70 22.98 82 7 357
31 Oct 504.95 15.8 1.45 - 856 179 357
30 Oct 497.60 14.35 0.30 - 444 4 178
29 Oct 499.05 14.05 3.25 - 310 82 172
28 Oct 486.40 10.8 0.80 - 106 24 89
25 Oct 480.05 10 -1.40 - 47 7 65
24 Oct 487.50 11.4 -0.60 - 66 15 58
23 Oct 493.80 12 -2.50 - 36 10 43
22 Oct 497.10 14.5 -3.50 - 49 11 35
21 Oct 510.30 18 0.35 - 7 3 25
18 Oct 505.75 17.65 0.15 - 18 4 24
17 Oct 504.25 17.5 -5.15 - 14 6 21
16 Oct 518.80 22.65 0.65 - 9 7 14
15 Oct 515.00 22 5.00 - 11 3 5
14 Oct 503.55 17 -6.65 - 2 1 1
11 Oct 505.05 23.65 0.00 - 0 0 0
10 Oct 506.30 23.65 0.00 - 0 0 0
9 Oct 507.15 23.65 0.00 - 0 0 0
8 Oct 508.95 23.65 -12.40 - 2 1 1
7 Oct 502.25 36.05 0.00 - 0 0 0
4 Oct 511.55 36.05 0.00 - 0 0 0
3 Oct 525.80 36.05 0.00 - 0 0 0
1 Oct 550.75 36.05 0.00 - 0 0 0
30 Sept 547.85 36.05 0.00 - 0 0 0
27 Sept 547.55 36.05 36.05 - 0 0 0
26 Sept 564.25 0 0.00 - 0 0 0
25 Sept 544.55 0 0.00 - 0 0 0
24 Sept 528.65 0 0.00 - 0 0 0
20 Sept 515.60 0 0.00 - 0 0 0
19 Sept 518.45 0 0.00 - 0 0 0
17 Sept 518.25 0 0.00 - 0 0 0
16 Sept 526.35 0 0.00 - 0 0 0
13 Sept 526.70 0 0.00 - 0 0 0
12 Sept 518.05 0 0.00 - 0 0 0
11 Sept 523.65 0 0.00 - 0 0 0
10 Sept 518.65 0 0.00 - 0 0 0
4 Sept 508.70 0 0.00 - 0 0 0
2 Sept 499.35 0 - 0 0 0


For Apollo Tyres Ltd - strike price 500 expiring on 28NOV2024

Delta for 500 CE is 0.17

Historical price for 500 CE is as follows

On 14 Nov APOLLOTYRE was trading at 474.10. The strike last trading price was 2.2, which was 0.75 higher than the previous day. The implied volatity was 26.01, the open interest changed by 135 which increased total open position to 923


On 13 Nov APOLLOTYRE was trading at 456.60. The strike last trading price was 1.45, which was -3.55 lower than the previous day. The implied volatity was 32.04, the open interest changed by -173 which decreased total open position to 797


On 12 Nov APOLLOTYRE was trading at 471.35. The strike last trading price was 5, which was -2.30 lower than the previous day. The implied volatity was 36.75, the open interest changed by 5 which increased total open position to 968


On 11 Nov APOLLOTYRE was trading at 483.25. The strike last trading price was 7.3, which was -1.90 lower than the previous day. The implied volatity was 32.41, the open interest changed by 18 which increased total open position to 967


On 8 Nov APOLLOTYRE was trading at 491.05. The strike last trading price was 9.2, which was -3.95 lower than the previous day. The implied volatity was 24.58, the open interest changed by 34 which increased total open position to 949


On 7 Nov APOLLOTYRE was trading at 497.50. The strike last trading price was 13.15, which was 0.20 higher than the previous day. The implied volatity was 26.26, the open interest changed by 160 which increased total open position to 916


On 6 Nov APOLLOTYRE was trading at 490.40. The strike last trading price was 12.95, which was 1.75 higher than the previous day. The implied volatity was 32.40, the open interest changed by 21 which increased total open position to 758


On 5 Nov APOLLOTYRE was trading at 482.45. The strike last trading price was 11.2, which was 1.05 higher than the previous day. The implied volatity was 35.64, the open interest changed by 236 which increased total open position to 736


On 4 Nov APOLLOTYRE was trading at 485.20. The strike last trading price was 10.15, which was -4.95 lower than the previous day. The implied volatity was 30.57, the open interest changed by 144 which increased total open position to 500


On 1 Nov APOLLOTYRE was trading at 503.20. The strike last trading price was 15.1, which was -0.70 lower than the previous day. The implied volatity was 22.98, the open interest changed by 7 which increased total open position to 357


On 31 Oct APOLLOTYRE was trading at 504.95. The strike last trading price was 15.8, which was 1.45 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 30 Oct APOLLOTYRE was trading at 497.60. The strike last trading price was 14.35, which was 0.30 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 29 Oct APOLLOTYRE was trading at 499.05. The strike last trading price was 14.05, which was 3.25 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 28 Oct APOLLOTYRE was trading at 486.40. The strike last trading price was 10.8, which was 0.80 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 25 Oct APOLLOTYRE was trading at 480.05. The strike last trading price was 10, which was -1.40 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 24 Oct APOLLOTYRE was trading at 487.50. The strike last trading price was 11.4, which was -0.60 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 23 Oct APOLLOTYRE was trading at 493.80. The strike last trading price was 12, which was -2.50 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 22 Oct APOLLOTYRE was trading at 497.10. The strike last trading price was 14.5, which was -3.50 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 21 Oct APOLLOTYRE was trading at 510.30. The strike last trading price was 18, 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 18 Oct APOLLOTYRE was trading at 505.75. The strike last trading price was 17.65, which was 0.15 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 17 Oct APOLLOTYRE was trading at 504.25. The strike last trading price was 17.5, which was -5.15 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 16 Oct APOLLOTYRE was trading at 518.80. The strike last trading price was 22.65, which was 0.65 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 15 Oct APOLLOTYRE was trading at 515.00. The strike last trading price was 22, which was 5.00 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 14 Oct APOLLOTYRE was trading at 503.55. The strike last trading price was 17, which was -6.65 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 11 Oct APOLLOTYRE was trading at 505.05. The strike last trading price was 23.65, 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 10 Oct APOLLOTYRE was trading at 506.30. The strike last trading price was 23.65, 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 9 Oct APOLLOTYRE was trading at 507.15. The strike last trading price was 23.65, 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 8 Oct APOLLOTYRE was trading at 508.95. The strike last trading price was 23.65, which was -12.40 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 7 Oct APOLLOTYRE was trading at 502.25. The strike last trading price was 36.05, 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 APOLLOTYRE was trading at 511.55. The strike last trading price was 36.05, 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 APOLLOTYRE was trading at 525.80. The strike last trading price was 36.05, 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 APOLLOTYRE was trading at 550.75. The strike last trading price was 36.05, 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 APOLLOTYRE was trading at 547.85. The strike last trading price was 36.05, 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 APOLLOTYRE was trading at 547.55. The strike last trading price was 36.05, which was 36.05 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 26 Sept APOLLOTYRE was trading at 564.25. 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 25 Sept APOLLOTYRE was trading at 544.55. 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 24 Sept APOLLOTYRE was trading at 528.65. 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 20 Sept APOLLOTYRE was trading at 515.60. 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 19 Sept APOLLOTYRE was trading at 518.45. 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 Sept APOLLOTYRE was trading at 518.25. 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 16 Sept APOLLOTYRE was trading at 526.35. 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 13 Sept APOLLOTYRE was trading at 526.70. 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 12 Sept APOLLOTYRE was trading at 518.05. 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 Sept APOLLOTYRE was trading at 523.65. 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 10 Sept APOLLOTYRE was trading at 518.65. 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 Sept APOLLOTYRE was trading at 508.70. 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 2 Sept APOLLOTYRE was trading at 499.35. 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


APOLLOTYRE 28NOV2024 500 PE
Delta: -0.73
Vega: 0.31
Theta: -0.31
Gamma: 0.01
Date Close Ltp Change IV Volume Change OI OI
14 Nov 474.10 29.55 -20.45 37.86 224 -23 322
13 Nov 456.60 50 15.45 65.11 189 -41 347
12 Nov 471.35 34.55 6.50 43.41 147 34 389
11 Nov 483.25 28.05 -0.60 45.86 314 0 357
8 Nov 491.05 28.65 5.55 56.89 591 41 357
7 Nov 497.50 23.1 -0.15 49.85 319 30 316
6 Nov 490.40 23.25 -6.25 41.80 356 12 289
5 Nov 482.45 29.5 -2.55 43.94 217 7 278
4 Nov 485.20 32.05 8.65 51.24 367 87 272
1 Nov 503.20 23.4 0.65 47.93 30 3 183
31 Oct 504.95 22.75 -2.25 - 141 2 180
30 Oct 497.60 25 0.05 - 204 40 179
29 Oct 499.05 24.95 -4.05 - 85 22 138
28 Oct 486.40 29 -5.75 - 35 12 117
25 Oct 480.05 34.75 4.50 - 14 -1 105
24 Oct 487.50 30.25 0.40 - 33 8 106
23 Oct 493.80 29.85 1.35 - 23 -6 99
22 Oct 497.10 28.5 9.50 - 40 16 104
21 Oct 510.30 19 -0.50 - 9 5 86
18 Oct 505.75 19.5 -1.75 - 8 -2 81
17 Oct 504.25 21.25 5.80 - 35 27 83
16 Oct 518.80 15.45 1.05 - 15 3 55
15 Oct 515.00 14.4 -4.20 - 15 6 53
14 Oct 503.55 18.6 0.10 - 8 3 47
11 Oct 505.05 18.5 -1.40 - 15 8 44
10 Oct 506.30 19.9 0.00 - 0 1 0
9 Oct 507.15 19.9 -1.10 - 6 1 36
8 Oct 508.95 21 -5.85 - 1 0 35
7 Oct 502.25 26.85 4.00 - 7 1 31
4 Oct 511.55 22.85 5.70 - 2 -1 29
3 Oct 525.80 17.15 6.55 - 31 18 29
1 Oct 550.75 10.6 -0.80 - 9 1 13
30 Sept 547.85 11.4 0.00 - 0 3 0
27 Sept 547.55 11.4 -2.60 - 17 2 11
26 Sept 564.25 14 0.80 - 2 1 8
25 Sept 544.55 13.2 -3.30 - 8 1 7
24 Sept 528.65 16.5 -6.00 - 2 -1 5
20 Sept 515.60 22.5 1.50 - 5 1 5
19 Sept 518.45 21 10.00 - 3 2 3
17 Sept 518.25 11 -23.70 - 1 0 0
16 Sept 526.35 34.7 0.00 - 0 0 0
13 Sept 526.70 34.7 0.00 - 0 0 0
12 Sept 518.05 34.7 0.00 - 0 0 0
11 Sept 523.65 34.7 0.00 - 0 0 0
10 Sept 518.65 34.7 0.00 - 0 0 0
4 Sept 508.70 34.7 0.00 - 0 0 0
2 Sept 499.35 34.7 - 0 0 0


For Apollo Tyres Ltd - strike price 500 expiring on 28NOV2024

Delta for 500 PE is -0.73

Historical price for 500 PE is as follows

On 14 Nov APOLLOTYRE was trading at 474.10. The strike last trading price was 29.55, which was -20.45 lower than the previous day. The implied volatity was 37.86, the open interest changed by -23 which decreased total open position to 322


On 13 Nov APOLLOTYRE was trading at 456.60. The strike last trading price was 50, which was 15.45 higher than the previous day. The implied volatity was 65.11, the open interest changed by -41 which decreased total open position to 347


On 12 Nov APOLLOTYRE was trading at 471.35. The strike last trading price was 34.55, which was 6.50 higher than the previous day. The implied volatity was 43.41, the open interest changed by 34 which increased total open position to 389


On 11 Nov APOLLOTYRE was trading at 483.25. The strike last trading price was 28.05, which was -0.60 lower than the previous day. The implied volatity was 45.86, the open interest changed by 0 which decreased total open position to 357


On 8 Nov APOLLOTYRE was trading at 491.05. The strike last trading price was 28.65, which was 5.55 higher than the previous day. The implied volatity was 56.89, the open interest changed by 41 which increased total open position to 357


On 7 Nov APOLLOTYRE was trading at 497.50. The strike last trading price was 23.1, which was -0.15 lower than the previous day. The implied volatity was 49.85, the open interest changed by 30 which increased total open position to 316


On 6 Nov APOLLOTYRE was trading at 490.40. The strike last trading price was 23.25, which was -6.25 lower than the previous day. The implied volatity was 41.80, the open interest changed by 12 which increased total open position to 289


On 5 Nov APOLLOTYRE was trading at 482.45. The strike last trading price was 29.5, which was -2.55 lower than the previous day. The implied volatity was 43.94, the open interest changed by 7 which increased total open position to 278


On 4 Nov APOLLOTYRE was trading at 485.20. The strike last trading price was 32.05, which was 8.65 higher than the previous day. The implied volatity was 51.24, the open interest changed by 87 which increased total open position to 272


On 1 Nov APOLLOTYRE was trading at 503.20. The strike last trading price was 23.4, which was 0.65 higher than the previous day. The implied volatity was 47.93, the open interest changed by 3 which increased total open position to 183


On 31 Oct APOLLOTYRE was trading at 504.95. The strike last trading price was 22.75, which was -2.25 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 30 Oct APOLLOTYRE was trading at 497.60. The strike last trading price was 25, which was 0.05 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 29 Oct APOLLOTYRE was trading at 499.05. The strike last trading price was 24.95, which was -4.05 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 28 Oct APOLLOTYRE was trading at 486.40. The strike last trading price was 29, which was -5.75 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 25 Oct APOLLOTYRE was trading at 480.05. The strike last trading price was 34.75, which was 4.50 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 24 Oct APOLLOTYRE was trading at 487.50. The strike last trading price was 30.25, which was 0.40 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 23 Oct APOLLOTYRE was trading at 493.80. The strike last trading price was 29.85, which was 1.35 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 22 Oct APOLLOTYRE was trading at 497.10. The strike last trading price was 28.5, which was 9.50 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 21 Oct APOLLOTYRE was trading at 510.30. The strike last trading price was 19, 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 18 Oct APOLLOTYRE was trading at 505.75. The strike last trading price was 19.5, 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 APOLLOTYRE was trading at 504.25. The strike last trading price was 21.25, which was 5.80 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 16 Oct APOLLOTYRE was trading at 518.80. The strike last trading price was 15.45, which was 1.05 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 15 Oct APOLLOTYRE was trading at 515.00. The strike last trading price was 14.4, which was -4.20 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 14 Oct APOLLOTYRE was trading at 503.55. The strike last trading price was 18.6, which was 0.10 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 11 Oct APOLLOTYRE was trading at 505.05. The strike last trading price was 18.5, which was -1.40 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 10 Oct APOLLOTYRE was trading at 506.30. The strike last trading price was 19.9, 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 Oct APOLLOTYRE was trading at 507.15. The strike last trading price was 19.9, which was -1.10 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 8 Oct APOLLOTYRE was trading at 508.95. The strike last trading price was 21, which was -5.85 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 7 Oct APOLLOTYRE was trading at 502.25. The strike last trading price was 26.85, which was 4.00 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 4 Oct APOLLOTYRE was trading at 511.55. The strike last trading price was 22.85, 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 3 Oct APOLLOTYRE was trading at 525.80. The strike last trading price was 17.15, which was 6.55 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 1 Oct APOLLOTYRE was trading at 550.75. The strike last trading price was 10.6, which was -0.80 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 30 Sept APOLLOTYRE was trading at 547.85. The strike last trading price was 11.4, 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 APOLLOTYRE was trading at 547.55. The strike last trading price was 11.4, which was -2.60 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 26 Sept APOLLOTYRE was trading at 564.25. The strike last trading price was 14, which was 0.80 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 25 Sept APOLLOTYRE was trading at 544.55. The strike last trading price was 13.2, 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 24 Sept APOLLOTYRE was trading at 528.65. The strike last trading price was 16.5, 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 20 Sept APOLLOTYRE was trading at 515.60. The strike last trading price was 22.5, which was 1.50 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 19 Sept APOLLOTYRE was trading at 518.45. The strike last trading price was 21, which was 10.00 higher than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 17 Sept APOLLOTYRE was trading at 518.25. The strike last trading price was 11, which was -23.70 lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to


On 16 Sept APOLLOTYRE was trading at 526.35. The strike last trading price was 34.7, 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 APOLLOTYRE was trading at 526.70. The strike last trading price was 34.7, 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 APOLLOTYRE was trading at 518.05. The strike last trading price was 34.7, 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 APOLLOTYRE was trading at 523.65. The strike last trading price was 34.7, 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 APOLLOTYRE was trading at 518.65. The strike last trading price was 34.7, 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 Sept APOLLOTYRE was trading at 508.70. The strike last trading price was 34.7, 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 2 Sept APOLLOTYRE was trading at 499.35. The strike last trading price was 34.7, which was lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to