NATIONALUM

National Aluminium Co Ltd

295.3 +5.15 (1.77%)

L: 290.35 H: 298.6

Back to Option Chain

Historical option data for NATIONALUM
24 Dec 2025 04:10 PM IST

Strike Price

Expiry

Ltp Ltp OI Open Interest (OI) OI Chg Change Open Interest Volume Volume IV IV

Call
Put

Per Lot

NATIONALUM 27-JAN-2026 280 CE
Delta: 0.77 Vega: 0.27 Theta: -0.17 Gamma: 0.01
Date	Close	Ltp	Change	IV	Volume	OI Chg	OI
24 Dec	295.30	21.7 ₹ 81,375	4.1 15375.00	29.26	201 7,53,750	64 2,40,000	300 11,25,000
23 Dec	290.15	17.6 ₹ 66,000	-0.05 -187.50	27.89	164 6,15,000	57 2,13,750	234 8,77,500
22 Dec	290.30	17.2 ₹ 64,500	6.7 25125.00	25.54	456 17,10,000	-143 -5,36,250	187 7,01,250
19 Dec	278.50	10.45 ₹ 39,187.5	-0.35 -1312.50	26.77	169 6,33,750	46 1,72,500	333 12,48,750

18 Dec	279.25	10.5 ₹ 39,375	-0.85 -3187.50	26.09	251 9,41,250	59 2,21,250	285 10,68,750
17 Dec	279.45	11.2 ₹ 42,000	0.6 2250.00	27.26	279 10,46,250	109 4,08,750	225 8,43,750
16 Dec	276.85	10.2 ₹ 38,250	-1.7 -6375.00	28.33	61 2,28,750	5 18,750	116 4,35,000
15 Dec	278.70	11.9 ₹ 44,625	0.45 1687.50	28.63	72 2,70,000	40 1,50,000	112 4,20,000
12 Dec	278.15	11.55 ₹ 43,312.5	5.55 20812.50	27.05	142 5,32,500	5 18,750	72 2,70,000
11 Dec	264.30	6 ₹ 22,500	-0.05 -187.50	28.33	44 1,65,000	6 22,500	65 2,43,750
10 Dec	263.00	6.05 ₹ 22,687.5	-0.35 -1312.50	29.58	25 93,750	8 30,000	58 2,17,500
9 Dec	265.65	6.4 ₹ 24,000	-1.25 -4687.50	28.17	14 52,500	6 22,500	49 1,83,750
8 Dec	268.35	7.65 ₹ 28,687.5	-2.45 -9187.50	28.50	9 33,750	-4 -15,000	43 1,61,250
5 Dec	273.15	10.1 ₹ 37,875	2.3 8625.00	27.33	31 1,16,250	6 22,500	46 1,72,500
4 Dec	269.25	7.8 ₹ 29,250	0.4 1500.00	25.88	11 41,250	5 18,750	39 1,46,250
3 Dec	266.50	7.4 ₹ 27,750	0.4 1500.00	25.96	2 7,500	-1 -3,750	33 1,23,750
2 Dec	265.15	7 ₹ 26,250	-1 -3750.00	27.44	5 18,750	2 7,500	33 1,23,750
1 Dec	263.80	8 ₹ 30,000	1.07 4012.50	30.55	4 15,000	3 11,250	30 1,12,500
28 Nov	259.98	6.93 ₹ 25,987.5	0.23 862.50	30.54	7 26,250	2 7,500	27 1,01,250
27 Nov	261.33	6.7 ₹ 25,125	1.35 5062.50	28.75	10 37,500	-1 -3,750	25 93,750
26 Nov	258.18	5.35 ₹ 20,062.5	1.1 4125.00	27.54	26 97,500	21 78,750	27 1,01,250
21 Nov	250.68	4.25 ₹ 15,937.5	-2.62 -9825.00	28.91	1 3,750	0 0	6 22,500
20 Nov	257.62	6.87 ₹ 25,762.5	0.36 1350.00	29.21	3 11,250	-1 -3,750	6 22,500
18 Nov	257.30	6.51 ₹ 24,412.5	-1.8 -6750.00	28.98	1 3,750	0 0	6 22,500
17 Nov	260.76	8.31 ₹ 31,162.5	-1.94 -7275.00	29.58	1 3,750	0 0	5 18,750
14 Nov	262.57	10.25 ₹ 38,437.5	2.25 8437.50	-	0 0	1 3,750	0 0
13 Nov	268.67	10.25 ₹ 38,437.5	2.25 8437.50	26.49	1 3,750	0 0	4 15,000
12 Nov	266.95	8 ₹ 30,000	-1.35 -5062.50	-	0 0	4 15,000	0 0
11 Nov	265.66	8 ₹ 30,000	-1.35 -5062.50	23.94	4 15,000	3 11,250	3 11,250

For National Aluminium Co Ltd - strike price 280 expiring on 27JAN2026

Delta for 280 CE is 0.77

Historical price for 280 CE is as follows

On 24 Dec NATIONALUM was trading at 295.30. The strike last trading price was 21.7, which was 4.1 higher than the previous day. The implied volatity was 29.26, the open interest changed by 64 which increased total open position to 300

On 23 Dec NATIONALUM was trading at 290.15. The strike last trading price was 17.6, which was -0.05 lower than the previous day. The implied volatity was 27.89, the open interest changed by 57 which increased total open position to 234

On 22 Dec NATIONALUM was trading at 290.30. The strike last trading price was 17.2, which was 6.7 higher than the previous day. The implied volatity was 25.54, the open interest changed by -143 which decreased total open position to 187

On 19 Dec NATIONALUM was trading at 278.50. The strike last trading price was 10.45, which was -0.35 lower than the previous day. The implied volatity was 26.77, the open interest changed by 46 which increased total open position to 333

On 18 Dec NATIONALUM was trading at 279.25. The strike last trading price was 10.5, which was -0.85 lower than the previous day. The implied volatity was 26.09, the open interest changed by 59 which increased total open position to 285

On 17 Dec NATIONALUM was trading at 279.45. The strike last trading price was 11.2, which was 0.6 higher than the previous day. The implied volatity was 27.26, the open interest changed by 109 which increased total open position to 225

On 16 Dec NATIONALUM was trading at 276.85. The strike last trading price was 10.2, which was -1.7 lower than the previous day. The implied volatity was 28.33, the open interest changed by 5 which increased total open position to 116

On 15 Dec NATIONALUM was trading at 278.70. The strike last trading price was 11.9, which was 0.45 higher than the previous day. The implied volatity was 28.63, the open interest changed by 40 which increased total open position to 112

On 12 Dec NATIONALUM was trading at 278.15. The strike last trading price was 11.55, which was 5.55 higher than the previous day. The implied volatity was 27.05, the open interest changed by 5 which increased total open position to 72

On 11 Dec NATIONALUM was trading at 264.30. The strike last trading price was 6, which was -0.05 lower than the previous day. The implied volatity was 28.33, the open interest changed by 6 which increased total open position to 65

On 10 Dec NATIONALUM was trading at 263.00. The strike last trading price was 6.05, which was -0.35 lower than the previous day. The implied volatity was 29.58, the open interest changed by 8 which increased total open position to 58

On 9 Dec NATIONALUM was trading at 265.65. The strike last trading price was 6.4, which was -1.25 lower than the previous day. The implied volatity was 28.17, the open interest changed by 6 which increased total open position to 49

On 8 Dec NATIONALUM was trading at 268.35. The strike last trading price was 7.65, which was -2.45 lower than the previous day. The implied volatity was 28.50, the open interest changed by -4 which decreased total open position to 43

On 5 Dec NATIONALUM was trading at 273.15. The strike last trading price was 10.1, which was 2.3 higher than the previous day. The implied volatity was 27.33, the open interest changed by 6 which increased total open position to 46

On 4 Dec NATIONALUM was trading at 269.25. The strike last trading price was 7.8, which was 0.4 higher than the previous day. The implied volatity was 25.88, the open interest changed by 5 which increased total open position to 39

On 3 Dec NATIONALUM was trading at 266.50. The strike last trading price was 7.4, which was 0.4 higher than the previous day. The implied volatity was 25.96, the open interest changed by -1 which decreased total open position to 33

On 2 Dec NATIONALUM was trading at 265.15. The strike last trading price was 7, which was -1 lower than the previous day. The implied volatity was 27.44, the open interest changed by 2 which increased total open position to 33

On 1 Dec NATIONALUM was trading at 263.80. The strike last trading price was 8, which was 1.07 higher than the previous day. The implied volatity was 30.55, the open interest changed by 3 which increased total open position to 30

On 28 Nov NATIONALUM was trading at 259.98. The strike last trading price was 6.93, which was 0.23 higher than the previous day. The implied volatity was 30.54, the open interest changed by 2 which increased total open position to 27

On 27 Nov NATIONALUM was trading at 261.33. The strike last trading price was 6.7, which was 1.35 higher than the previous day. The implied volatity was 28.75, the open interest changed by -1 which decreased total open position to 25

On 26 Nov NATIONALUM was trading at 258.18. The strike last trading price was 5.35, which was 1.1 higher than the previous day. The implied volatity was 27.54, the open interest changed by 21 which increased total open position to 27

On 21 Nov NATIONALUM was trading at 250.68. The strike last trading price was 4.25, which was -2.62 lower than the previous day. The implied volatity was 28.91, the open interest changed by 0 which decreased total open position to 6

On 20 Nov NATIONALUM was trading at 257.62. The strike last trading price was 6.87, which was 0.36 higher than the previous day. The implied volatity was 29.21, the open interest changed by -1 which decreased total open position to 6

On 18 Nov NATIONALUM was trading at 257.30. The strike last trading price was 6.51, which was -1.8 lower than the previous day. The implied volatity was 28.98, the open interest changed by 0 which decreased total open position to 6

On 17 Nov NATIONALUM was trading at 260.76. The strike last trading price was 8.31, which was -1.94 lower than the previous day. The implied volatity was 29.58, the open interest changed by 0 which decreased total open position to 5

On 14 Nov NATIONALUM was trading at 262.57. The strike last trading price was 10.25, which was 2.25 higher than the previous day. The implied volatity was -, the open interest changed by 1 which increased total open position to 0

On 13 Nov NATIONALUM was trading at 268.67. The strike last trading price was 10.25, which was 2.25 higher than the previous day. The implied volatity was 26.49, the open interest changed by 0 which decreased total open position to 4

On 12 Nov NATIONALUM was trading at 266.95. The strike last trading price was 8, which was -1.35 lower than the previous day. The implied volatity was -, the open interest changed by 4 which increased total open position to 0

On 11 Nov NATIONALUM was trading at 265.66. The strike last trading price was 8, which was -1.35 lower than the previous day. The implied volatity was 23.94, the open interest changed by 3 which increased total open position to 3

NATIONALUM 27JAN2026 280 PE
Delta: -0.23 Vega: 0.27 Theta: -0.10 Gamma: 0.01
Date	Close	Ltp	Change	IV	Volume	OI Chg	OI
24 Dec	295.30	3.8 ₹ 14,250	-1.2 -4500.00	29.98	360 13,50,000	74 2,77,500	293 10,98,750
23 Dec	290.15	5 ₹ 18,750	-0.15 -562.50	29.11	166 6,22,500	-2 -7,500	218 8,17,500
22 Dec	290.30	5.25 ₹ 19,687.5	-3.65 -13687.50	29.77	621 23,28,750	-121 -4,53,750	215 8,06,250
19 Dec	278.50	8.8 ₹ 33,000	-0.75 -2812.50	26.29	80 3,00,000	34 1,27,500	336 12,60,000
18 Dec	279.25	9.7 ₹ 36,375	0.2 750.00	28.83	108 4,05,000	31 1,16,250	300 11,25,000
17 Dec	279.45	9.6 ₹ 36,000	-2.15 -8062.50	28.55	260 9,75,000	210 7,87,500	269 10,08,750
16 Dec	276.85	11.75 ₹ 44,062.5	1.05 3937.50	30.35	8 30,000	5 18,750	58 2,17,500
15 Dec	278.70	10.7 ₹ 40,125	-0.65 -2437.50	30.68	27 1,01,250	22 82,500	53 1,98,750
12 Dec	278.15	11.3 ₹ 42,375	-5.2 -19500.00	31.02	28 1,05,000	18 67,500	31 1,16,250
11 Dec	264.30	16.5 ₹ 61,875	2.5 9375.00	-	0 0	0 0	13 48,750
10 Dec	263.00	16.5 ₹ 61,875	2.5 9375.00	-	0 0	0 0	13 48,750
9 Dec	265.65	16.5 ₹ 61,875	2.5 9375.00	-	0 0	6 22,500	0 0
8 Dec	268.35	16.5 ₹ 61,875	2.5 9375.00	29.18	9 33,750	6 22,500	13 48,750
5 Dec	273.15	14 ₹ 52,500	-3.4 -12750.00	30.19	2 7,500	0 0	5 18,750
4 Dec	269.25	17.4 ₹ 65,250	-2 -7500.00	33.02	2 7,500	1 3,750	4 15,000
3 Dec	266.50	19.4 ₹ 72,750	-7.13 -26737.50	-	0 0	0 0	0 0
2 Dec	265.15	19.4 ₹ 72,750	-7.13 -26737.50	31.62	3 11,250	0 0	3 11,250
1 Dec	263.80	26.53 ₹ 99,487.5	-21.82 -81825.00	-	0 0	0 0	0 0
28 Nov	259.98	26.53 ₹ 99,487.5	-21.82 -81825.00	-	0 0	0 0	0 0
27 Nov	261.33	26.53 ₹ 99,487.5	-21.82 -81825.00	-	0 0	3 11,250	0 0
26 Nov	258.18	26.53 ₹ 99,487.5	-21.82 -81825.00	38.08	3 11,250	0 0	0 0
21 Nov	250.68	48.35 ₹ 1,81,312.5	0 0.00	-	0 0	0 0	0 0
20 Nov	257.62	48.35 ₹ 1,81,312.5	0 0.00	-	0 0	0 0	0 0
18 Nov	257.30	48.35 ₹ 1,81,312.5	0 0.00	-	0 0	0 0	0 0
17 Nov	260.76	48.35 ₹ 1,81,312.5	0 0.00	-	0 0	0 0	0 0
14 Nov	262.57	48.35 ₹ 1,81,312.5	0 0.00	-	0 0	0 0	0 0
13 Nov	268.67	48.35 ₹ 1,81,312.5	0 0.00	-	0 0	0 0	0 0
12 Nov	266.95	48.35 ₹ 1,81,312.5	0 0.00	-	0 0	0 0	0 0
11 Nov	265.66	48.35 ₹ 1,81,312.5	0 0.00	-	0 0	0 0	0 0

For National Aluminium Co Ltd - strike price 280 expiring on 27JAN2026

Delta for 280 PE is -0.23

Historical price for 280 PE is as follows

On 24 Dec NATIONALUM was trading at 295.30. The strike last trading price was 3.8, which was -1.2 lower than the previous day. The implied volatity was 29.98, the open interest changed by 74 which increased total open position to 293

On 23 Dec NATIONALUM was trading at 290.15. The strike last trading price was 5, which was -0.15 lower than the previous day. The implied volatity was 29.11, the open interest changed by -2 which decreased total open position to 218

On 22 Dec NATIONALUM was trading at 290.30. The strike last trading price was 5.25, which was -3.65 lower than the previous day. The implied volatity was 29.77, the open interest changed by -121 which decreased total open position to 215

On 19 Dec NATIONALUM was trading at 278.50. The strike last trading price was 8.8, which was -0.75 lower than the previous day. The implied volatity was 26.29, the open interest changed by 34 which increased total open position to 336

On 18 Dec NATIONALUM was trading at 279.25. The strike last trading price was 9.7, which was 0.2 higher than the previous day. The implied volatity was 28.83, the open interest changed by 31 which increased total open position to 300

On 17 Dec NATIONALUM was trading at 279.45. The strike last trading price was 9.6, which was -2.15 lower than the previous day. The implied volatity was 28.55, the open interest changed by 210 which increased total open position to 269

On 16 Dec NATIONALUM was trading at 276.85. The strike last trading price was 11.75, which was 1.05 higher than the previous day. The implied volatity was 30.35, the open interest changed by 5 which increased total open position to 58

On 15 Dec NATIONALUM was trading at 278.70. The strike last trading price was 10.7, which was -0.65 lower than the previous day. The implied volatity was 30.68, the open interest changed by 22 which increased total open position to 53

On 12 Dec NATIONALUM was trading at 278.15. The strike last trading price was 11.3, which was -5.2 lower than the previous day. The implied volatity was 31.02, the open interest changed by 18 which increased total open position to 31

On 11 Dec NATIONALUM was trading at 264.30. The strike last trading price was 16.5, which was 2.5 higher than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 13

On 10 Dec NATIONALUM was trading at 263.00. The strike last trading price was 16.5, which was 2.5 higher than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 13

On 9 Dec NATIONALUM was trading at 265.65. The strike last trading price was 16.5, which was 2.5 higher than the previous day. The implied volatity was -, the open interest changed by 6 which increased total open position to 0

On 8 Dec NATIONALUM was trading at 268.35. The strike last trading price was 16.5, which was 2.5 higher than the previous day. The implied volatity was 29.18, the open interest changed by 6 which increased total open position to 13

On 5 Dec NATIONALUM was trading at 273.15. The strike last trading price was 14, which was -3.4 lower than the previous day. The implied volatity was 30.19, the open interest changed by 0 which decreased total open position to 5

On 4 Dec NATIONALUM was trading at 269.25. The strike last trading price was 17.4, which was -2 lower than the previous day. The implied volatity was 33.02, the open interest changed by 1 which increased total open position to 4

On 3 Dec NATIONALUM was trading at 266.50. The strike last trading price was 19.4, which was -7.13 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

On 2 Dec NATIONALUM was trading at 265.15. The strike last trading price was 19.4, which was -7.13 lower than the previous day. The implied volatity was 31.62, the open interest changed by 0 which decreased total open position to 3

On 1 Dec NATIONALUM was trading at 263.80. The strike last trading price was 26.53, which was -21.82 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

On 28 Nov NATIONALUM was trading at 259.98. The strike last trading price was 26.53, which was -21.82 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

On 27 Nov NATIONALUM was trading at 261.33. The strike last trading price was 26.53, which was -21.82 lower than the previous day. The implied volatity was -, the open interest changed by 3 which increased total open position to 0

On 26 Nov NATIONALUM was trading at 258.18. The strike last trading price was 26.53, which was -21.82 lower than the previous day. The implied volatity was 38.08, the open interest changed by 0 which decreased total open position to 0

On 21 Nov NATIONALUM was trading at 250.68. The strike last trading price was 48.35, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

On 20 Nov NATIONALUM was trading at 257.62. The strike last trading price was 48.35, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

On 18 Nov NATIONALUM was trading at 257.30. The strike last trading price was 48.35, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

On 17 Nov NATIONALUM was trading at 260.76. The strike last trading price was 48.35, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

On 14 Nov NATIONALUM was trading at 262.57. The strike last trading price was 48.35, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

On 13 Nov NATIONALUM was trading at 268.67. The strike last trading price was 48.35, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

On 12 Nov NATIONALUM was trading at 266.95. The strike last trading price was 48.35, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

On 11 Nov NATIONALUM was trading at 265.66. The strike last trading price was 48.35, which was 0 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

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