BANKNIFTY
Nifty Bank
Historical option data for BANKNIFTY
26 Dec 2024 04:13 PM IST
BANKNIFTY 29JAN2025 53200 CE | ||||||||||
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Delta: 0.26
Vega: 50.18
Theta: -13.85
Gamma: 0.00
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Date | Close | Ltp | Change | IV | Volume | Change OI | OI | |||
26 Dec | 51170.70 | 329 | -2.20 | 14.05 | 69,054 | 4,829 | 9,569 | |||
24 Dec | 51233.00 | 331.2 | -33.35 | 13.03 | 6,542 | 895 | 4,679 | |||
23 Dec | 51317.60 | 364.55 | 6.75 | 13.36 | 4,917 | 318 | 3,776 | |||
20 Dec | 50759.20 | 357.8 | -265.75 | 14.63 | 4,720 | 981 | 3,464 | |||
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19 Dec | 51575.70 | 623.55 | -257.25 | 15.02 | 3,751 | 569 | 2,482 | |||
18 Dec | 52139.55 | 880.8 | -303.95 | 14.99 | 2,487 | 365 | 1,921 | |||
17 Dec | 52834.80 | 1184.75 | -401.45 | 14.92 | 2,492 | 641 | 1,556 | |||
16 Dec | 53581.35 | 1586.2 | 26.10 | 14.42 | 401 | 20 | 913 | |||
13 Dec | 53583.80 | 1560.1 | 92.40 | 11.86 | 2,042 | 221 | 899 | |||
12 Dec | 53216.45 | 1467.7 | -87.30 | 13.98 | 461 | 134 | 677 | |||
11 Dec | 53391.35 | 1555 | -99.50 | 13.48 | 193 | -36 | 550 | |||
10 Dec | 53577.70 | 1654.5 | 84.85 | 12.57 | 179 | 24 | 610 | |||
9 Dec | 53407.75 | 1569.65 | -102.95 | 12.91 | 237 | 1 | 586 | |||
6 Dec | 53509.50 | 1672.6 | -19.20 | 12.91 | 207 | -21 | 586 | |||
5 Dec | 53603.55 | 1691.8 | 167.80 | 11.88 | 859 | -76 | 610 | |||
4 Dec | 53266.90 | 1524 | 318.40 | 12.69 | 1,316 | 51 | 695 | |||
3 Dec | 52695.75 | 1205.6 | 200.60 | 12.76 | 907 | 425 | 645 | |||
2 Dec | 52109.00 | 1005 | 53.45 | 13.51 | 147 | 10 | 118 | |||
29 Nov | 52055.60 | 951.55 | -48.45 | 12.84 | 179 | 20 | 108 | |||
28 Nov | 51906.85 | 1000 | -80.00 | 13.45 | 81 | 66 | 89 | |||
27 Nov | 52301.80 | 1080 | 81.10 | 12.43 | 1 | 0 | 22 | |||
26 Nov | 52191.50 | 998.9 | -50.50 | 12.03 | 16 | 4 | 18 | |||
25 Nov | 52207.50 | 1049.4 | -880.80 | 12.39 | 16 | 14 | 14 | |||
22 Nov | 51135.40 | 1930.2 | 0.00 | 1.20 | 0 | 0 | 0 | |||
21 Nov | 50372.90 | 1930.2 | 0.00 | 1.76 | 0 | 0 | 0 | |||
19 Nov | 50626.50 | 1930.2 | 0.00 | 1.70 | 0 | 0 | 0 | |||
18 Nov | 50363.80 | 1930.2 | 0.00 | 1.72 | 0 | 0 | 0 | |||
14 Nov | 50179.55 | 1930.2 | 0.00 | 1.82 | 0 | 0 | 0 | |||
13 Nov | 50088.35 | 1930.2 | 0.00 | 1.72 | 0 | 0 | 0 | |||
12 Nov | 51157.80 | 1930.2 | 0.00 | 0.95 | 0 | 0 | 0 | |||
11 Nov | 51876.75 | 1930.2 | 0.00 | 0.26 | 0 | 0 | 0 | |||
8 Nov | 51561.20 | 1930.2 | 0.00 | 0.48 | 0 | 0 | 0 | |||
7 Nov | 51916.50 | 1930.2 | 0.00 | 0.12 | 0 | 0 | 0 | |||
6 Nov | 52317.40 | 1930.2 | 0.00 | - | 0 | 0 | 0 | |||
5 Nov | 52207.25 | 1930.2 | 0.00 | - | 0 | 0 | 0 | |||
4 Nov | 51215.25 | 1930.2 | 1930.20 | 0.62 | 0 | 0 | 0 | |||
1 Nov | 51673.90 | 0 | 0.00 | 0.17 | 0 | 0 | 0 | |||
31 Oct | 51559.20 | 0.00 | - | 0 | 0 | 0 |
For Nifty Bank - strike price 53200 expiring on 29JAN2025
Delta for 53200 CE is 0.26
Historical price for 53200 CE is as follows
On 26 Dec BANKNIFTY was trading at 51170.70. The strike last trading price was 329, which was -2.20 lower than the previous day. The implied volatity was 14.05, the open interest changed by 4829 which increased total open position to 9569
On 24 Dec BANKNIFTY was trading at 51233.00. The strike last trading price was 331.2, which was -33.35 lower than the previous day. The implied volatity was 13.03, the open interest changed by 895 which increased total open position to 4679
On 23 Dec BANKNIFTY was trading at 51317.60. The strike last trading price was 364.55, which was 6.75 higher than the previous day. The implied volatity was 13.36, the open interest changed by 318 which increased total open position to 3776
On 20 Dec BANKNIFTY was trading at 50759.20. The strike last trading price was 357.8, which was -265.75 lower than the previous day. The implied volatity was 14.63, the open interest changed by 981 which increased total open position to 3464
On 19 Dec BANKNIFTY was trading at 51575.70. The strike last trading price was 623.55, which was -257.25 lower than the previous day. The implied volatity was 15.02, the open interest changed by 569 which increased total open position to 2482
On 18 Dec BANKNIFTY was trading at 52139.55. The strike last trading price was 880.8, which was -303.95 lower than the previous day. The implied volatity was 14.99, the open interest changed by 365 which increased total open position to 1921
On 17 Dec BANKNIFTY was trading at 52834.80. The strike last trading price was 1184.75, which was -401.45 lower than the previous day. The implied volatity was 14.92, the open interest changed by 641 which increased total open position to 1556
On 16 Dec BANKNIFTY was trading at 53581.35. The strike last trading price was 1586.2, which was 26.10 higher than the previous day. The implied volatity was 14.42, the open interest changed by 20 which increased total open position to 913
On 13 Dec BANKNIFTY was trading at 53583.80. The strike last trading price was 1560.1, which was 92.40 higher than the previous day. The implied volatity was 11.86, the open interest changed by 221 which increased total open position to 899
On 12 Dec BANKNIFTY was trading at 53216.45. The strike last trading price was 1467.7, which was -87.30 lower than the previous day. The implied volatity was 13.98, the open interest changed by 134 which increased total open position to 677
On 11 Dec BANKNIFTY was trading at 53391.35. The strike last trading price was 1555, which was -99.50 lower than the previous day. The implied volatity was 13.48, the open interest changed by -36 which decreased total open position to 550
On 10 Dec BANKNIFTY was trading at 53577.70. The strike last trading price was 1654.5, which was 84.85 higher than the previous day. The implied volatity was 12.57, the open interest changed by 24 which increased total open position to 610
On 9 Dec BANKNIFTY was trading at 53407.75. The strike last trading price was 1569.65, which was -102.95 lower than the previous day. The implied volatity was 12.91, the open interest changed by 1 which increased total open position to 586
On 6 Dec BANKNIFTY was trading at 53509.50. The strike last trading price was 1672.6, which was -19.20 lower than the previous day. The implied volatity was 12.91, the open interest changed by -21 which decreased total open position to 586
On 5 Dec BANKNIFTY was trading at 53603.55. The strike last trading price was 1691.8, which was 167.80 higher than the previous day. The implied volatity was 11.88, the open interest changed by -76 which decreased total open position to 610
On 4 Dec BANKNIFTY was trading at 53266.90. The strike last trading price was 1524, which was 318.40 higher than the previous day. The implied volatity was 12.69, the open interest changed by 51 which increased total open position to 695
On 3 Dec BANKNIFTY was trading at 52695.75. The strike last trading price was 1205.6, which was 200.60 higher than the previous day. The implied volatity was 12.76, the open interest changed by 425 which increased total open position to 645
On 2 Dec BANKNIFTY was trading at 52109.00. The strike last trading price was 1005, which was 53.45 higher than the previous day. The implied volatity was 13.51, the open interest changed by 10 which increased total open position to 118
On 29 Nov BANKNIFTY was trading at 52055.60. The strike last trading price was 951.55, which was -48.45 lower than the previous day. The implied volatity was 12.84, the open interest changed by 20 which increased total open position to 108
On 28 Nov BANKNIFTY was trading at 51906.85. The strike last trading price was 1000, which was -80.00 lower than the previous day. The implied volatity was 13.45, the open interest changed by 66 which increased total open position to 89
On 27 Nov BANKNIFTY was trading at 52301.80. The strike last trading price was 1080, which was 81.10 higher than the previous day. The implied volatity was 12.43, the open interest changed by 0 which decreased total open position to 22
On 26 Nov BANKNIFTY was trading at 52191.50. The strike last trading price was 998.9, which was -50.50 lower than the previous day. The implied volatity was 12.03, the open interest changed by 4 which increased total open position to 18
On 25 Nov BANKNIFTY was trading at 52207.50. The strike last trading price was 1049.4, which was -880.80 lower than the previous day. The implied volatity was 12.39, the open interest changed by 14 which increased total open position to 14
On 22 Nov BANKNIFTY was trading at 51135.40. The strike last trading price was 1930.2, which was 0.00 lower than the previous day. The implied volatity was 1.20, the open interest changed by 0 which decreased total open position to 0
On 21 Nov BANKNIFTY was trading at 50372.90. The strike last trading price was 1930.2, which was 0.00 lower than the previous day. The implied volatity was 1.76, the open interest changed by 0 which decreased total open position to 0
On 19 Nov BANKNIFTY was trading at 50626.50. The strike last trading price was 1930.2, which was 0.00 lower than the previous day. The implied volatity was 1.70, the open interest changed by 0 which decreased total open position to 0
On 18 Nov BANKNIFTY was trading at 50363.80. The strike last trading price was 1930.2, which was 0.00 lower than the previous day. The implied volatity was 1.72, the open interest changed by 0 which decreased total open position to 0
On 14 Nov BANKNIFTY was trading at 50179.55. The strike last trading price was 1930.2, which was 0.00 lower than the previous day. The implied volatity was 1.82, the open interest changed by 0 which decreased total open position to 0
On 13 Nov BANKNIFTY was trading at 50088.35. The strike last trading price was 1930.2, which was 0.00 lower than the previous day. The implied volatity was 1.72, the open interest changed by 0 which decreased total open position to 0
On 12 Nov BANKNIFTY was trading at 51157.80. The strike last trading price was 1930.2, which was 0.00 lower than the previous day. The implied volatity was 0.95, the open interest changed by 0 which decreased total open position to 0
On 11 Nov BANKNIFTY was trading at 51876.75. The strike last trading price was 1930.2, which was 0.00 lower than the previous day. The implied volatity was 0.26, the open interest changed by 0 which decreased total open position to 0
On 8 Nov BANKNIFTY was trading at 51561.20. The strike last trading price was 1930.2, which was 0.00 lower than the previous day. The implied volatity was 0.48, the open interest changed by 0 which decreased total open position to 0
On 7 Nov BANKNIFTY was trading at 51916.50. The strike last trading price was 1930.2, which was 0.00 lower than the previous day. The implied volatity was 0.12, the open interest changed by 0 which decreased total open position to 0
On 6 Nov BANKNIFTY was trading at 52317.40. The strike last trading price was 1930.2, 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 5 Nov BANKNIFTY was trading at 52207.25. The strike last trading price was 1930.2, 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 4 Nov BANKNIFTY was trading at 51215.25. The strike last trading price was 1930.2, which was 1930.20 higher than the previous day. The implied volatity was 0.62, the open interest changed by 0 which decreased total open position to 0
On 1 Nov BANKNIFTY was trading at 51673.90. The strike last trading price was 0, which was 0.00 lower than the previous day. The implied volatity was 0.17, the open interest changed by 0 which decreased total open position to 0
On 31 Oct BANKNIFTY was trading at 51559.20. The strike last trading price was 0.00, which was lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to
BANKNIFTY 29JAN2025 53200 PE | |||||||
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Delta: -0.71
Vega: 53.71
Theta: -2.55
Gamma: 0.00
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Date | Close | Ltp | Change | IV | Volume | Change OI | OI |
26 Dec | 51170.70 | 1955.1 | 200.15 | 16.48 | 7,041 | 2,477 | 4,184 |
24 Dec | 51233.00 | 1754.95 | -50.05 | 13.73 | 710 | 172 | 1,743 |
23 Dec | 51317.60 | 1805 | -451.45 | 14.86 | 67 | -29 | 1,571 |
20 Dec | 50759.20 | 2256.45 | 616.10 | 17.22 | 307 | -66 | 1,600 |
19 Dec | 51575.70 | 1640.35 | 330.05 | 15.36 | 707 | -88 | 1,672 |
18 Dec | 52139.55 | 1310.3 | 313.70 | 15.61 | 1,407 | 106 | 1,761 |
17 Dec | 52834.80 | 996.6 | 267.55 | 15.23 | 2,817 | -42 | 1,659 |
16 Dec | 53581.35 | 729.05 | 0.85 | 15.43 | 1,121 | 512 | 1,712 |
13 Dec | 53583.80 | 728.2 | -131.15 | 15.84 | 2,750 | -188 | 1,178 |
12 Dec | 53216.45 | 859.35 | 50.35 | 15.49 | 8,991 | 545 | 1,391 |
11 Dec | 53391.35 | 809 | 7.65 | 15.59 | 165 | 17 | 827 |
10 Dec | 53577.70 | 801.35 | -64.25 | 16.48 | 308 | -2 | 805 |
9 Dec | 53407.75 | 865.6 | 52.50 | 16.33 | 363 | -53 | 801 |
6 Dec | 53509.50 | 813.1 | -11.90 | 15.74 | 492 | 54 | 837 |
5 Dec | 53603.55 | 825 | -111.00 | 16.34 | 1,488 | -134 | 785 |
4 Dec | 53266.90 | 936 | -246.40 | 15.94 | 1,056 | 407 | 936 |
3 Dec | 52695.75 | 1182.4 | -271.65 | 15.98 | 571 | 207 | 521 |
2 Dec | 52109.00 | 1454.05 | 20.60 | 16.00 | 136 | 107 | 314 |
29 Nov | 52055.60 | 1433.45 | -23.95 | 15.06 | 135 | 106 | 208 |
28 Nov | 51906.85 | 1457.4 | -908.45 | 15.06 | 125 | 101 | 101 |
27 Nov | 52301.80 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
26 Nov | 52191.50 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
25 Nov | 52207.50 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
22 Nov | 51135.40 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
21 Nov | 50372.90 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
19 Nov | 50626.50 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
18 Nov | 50363.80 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
14 Nov | 50179.55 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
13 Nov | 50088.35 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
12 Nov | 51157.80 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
11 Nov | 51876.75 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
8 Nov | 51561.20 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
7 Nov | 51916.50 | 2365.85 | 0.00 | - | 0 | 0 | 0 |
6 Nov | 52317.40 | 2365.85 | 0.00 | 0.39 | 0 | 0 | 0 |
5 Nov | 52207.25 | 2365.85 | 2365.85 | 0.14 | 0 | 0 | 0 |
4 Nov | 51215.25 | 0 | 0.00 | - | 0 | 0 | 0 |
1 Nov | 51673.90 | 0 | 0.00 | - | 0 | 0 | 0 |
31 Oct | 51559.20 | 0.00 | - | 0 | 0 | 0 |
For Nifty Bank - strike price 53200 expiring on 29JAN2025
Delta for 53200 PE is -0.71
Historical price for 53200 PE is as follows
On 26 Dec BANKNIFTY was trading at 51170.70. The strike last trading price was 1955.1, which was 200.15 higher than the previous day. The implied volatity was 16.48, the open interest changed by 2477 which increased total open position to 4184
On 24 Dec BANKNIFTY was trading at 51233.00. The strike last trading price was 1754.95, which was -50.05 lower than the previous day. The implied volatity was 13.73, the open interest changed by 172 which increased total open position to 1743
On 23 Dec BANKNIFTY was trading at 51317.60. The strike last trading price was 1805, which was -451.45 lower than the previous day. The implied volatity was 14.86, the open interest changed by -29 which decreased total open position to 1571
On 20 Dec BANKNIFTY was trading at 50759.20. The strike last trading price was 2256.45, which was 616.10 higher than the previous day. The implied volatity was 17.22, the open interest changed by -66 which decreased total open position to 1600
On 19 Dec BANKNIFTY was trading at 51575.70. The strike last trading price was 1640.35, which was 330.05 higher than the previous day. The implied volatity was 15.36, the open interest changed by -88 which decreased total open position to 1672
On 18 Dec BANKNIFTY was trading at 52139.55. The strike last trading price was 1310.3, which was 313.70 higher than the previous day. The implied volatity was 15.61, the open interest changed by 106 which increased total open position to 1761
On 17 Dec BANKNIFTY was trading at 52834.80. The strike last trading price was 996.6, which was 267.55 higher than the previous day. The implied volatity was 15.23, the open interest changed by -42 which decreased total open position to 1659
On 16 Dec BANKNIFTY was trading at 53581.35. The strike last trading price was 729.05, which was 0.85 higher than the previous day. The implied volatity was 15.43, the open interest changed by 512 which increased total open position to 1712
On 13 Dec BANKNIFTY was trading at 53583.80. The strike last trading price was 728.2, which was -131.15 lower than the previous day. The implied volatity was 15.84, the open interest changed by -188 which decreased total open position to 1178
On 12 Dec BANKNIFTY was trading at 53216.45. The strike last trading price was 859.35, which was 50.35 higher than the previous day. The implied volatity was 15.49, the open interest changed by 545 which increased total open position to 1391
On 11 Dec BANKNIFTY was trading at 53391.35. The strike last trading price was 809, which was 7.65 higher than the previous day. The implied volatity was 15.59, the open interest changed by 17 which increased total open position to 827
On 10 Dec BANKNIFTY was trading at 53577.70. The strike last trading price was 801.35, which was -64.25 lower than the previous day. The implied volatity was 16.48, the open interest changed by -2 which decreased total open position to 805
On 9 Dec BANKNIFTY was trading at 53407.75. The strike last trading price was 865.6, which was 52.50 higher than the previous day. The implied volatity was 16.33, the open interest changed by -53 which decreased total open position to 801
On 6 Dec BANKNIFTY was trading at 53509.50. The strike last trading price was 813.1, which was -11.90 lower than the previous day. The implied volatity was 15.74, the open interest changed by 54 which increased total open position to 837
On 5 Dec BANKNIFTY was trading at 53603.55. The strike last trading price was 825, which was -111.00 lower than the previous day. The implied volatity was 16.34, the open interest changed by -134 which decreased total open position to 785
On 4 Dec BANKNIFTY was trading at 53266.90. The strike last trading price was 936, which was -246.40 lower than the previous day. The implied volatity was 15.94, the open interest changed by 407 which increased total open position to 936
On 3 Dec BANKNIFTY was trading at 52695.75. The strike last trading price was 1182.4, which was -271.65 lower than the previous day. The implied volatity was 15.98, the open interest changed by 207 which increased total open position to 521
On 2 Dec BANKNIFTY was trading at 52109.00. The strike last trading price was 1454.05, which was 20.60 higher than the previous day. The implied volatity was 16.00, the open interest changed by 107 which increased total open position to 314
On 29 Nov BANKNIFTY was trading at 52055.60. The strike last trading price was 1433.45, which was -23.95 lower than the previous day. The implied volatity was 15.06, the open interest changed by 106 which increased total open position to 208
On 28 Nov BANKNIFTY was trading at 51906.85. The strike last trading price was 1457.4, which was -908.45 lower than the previous day. The implied volatity was 15.06, the open interest changed by 101 which increased total open position to 101
On 27 Nov BANKNIFTY was trading at 52301.80. The strike last trading price was 2365.85, 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 26 Nov BANKNIFTY was trading at 52191.50. The strike last trading price was 2365.85, 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 25 Nov BANKNIFTY was trading at 52207.50. The strike last trading price was 2365.85, 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 22 Nov BANKNIFTY was trading at 51135.40. The strike last trading price was 2365.85, 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 21 Nov BANKNIFTY was trading at 50372.90. The strike last trading price was 2365.85, 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 19 Nov BANKNIFTY was trading at 50626.50. The strike last trading price was 2365.85, 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 18 Nov BANKNIFTY was trading at 50363.80. The strike last trading price was 2365.85, 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 BANKNIFTY was trading at 50179.55. The strike last trading price was 2365.85, 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 BANKNIFTY was trading at 50088.35. The strike last trading price was 2365.85, 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 BANKNIFTY was trading at 51157.80. The strike last trading price was 2365.85, 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 BANKNIFTY was trading at 51876.75. The strike last trading price was 2365.85, 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 BANKNIFTY was trading at 51561.20. The strike last trading price was 2365.85, 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 BANKNIFTY was trading at 51916.50. The strike last trading price was 2365.85, 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 BANKNIFTY was trading at 52317.40. The strike last trading price was 2365.85, which was 0.00 lower than the previous day. The implied volatity was 0.39, the open interest changed by 0 which decreased total open position to 0
On 5 Nov BANKNIFTY was trading at 52207.25. The strike last trading price was 2365.85, which was 2365.85 higher than the previous day. The implied volatity was 0.14, the open interest changed by 0 which decreased total open position to 0
On 4 Nov BANKNIFTY was trading at 51215.25. 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 0 which decreased total open position to 0
On 1 Nov BANKNIFTY was trading at 51673.90. 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 0 which decreased total open position to 0
On 31 Oct BANKNIFTY was trading at 51559.20. The strike last trading price was 0.00, which was lower than the previous day. The implied volatity was -, the open interest changed by which decreased total open position to