NATIONALUM

National Aluminium Co Ltd

295.3 +5.15 (1.77%)

L: 290.35 H: 298.6

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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 30-DEC-2025 285 CE
Delta: 0.82 Vega: 0.10 Theta: -0.33 Gamma: 0.02
Date	Close	Ltp	Change	IV	Volume	OI Chg	OI
24 Dec	295.30	12.2 ₹ 45,750	4.45 16687.50	32.86	120 4,50,000	-24 -90,000	293 10,98,750
23 Dec	290.15	7.55 ₹ 28,312.5	-0.3 -1125.00	24.94	299 11,21,250	-34 -1,27,500	320 12,00,000
22 Dec	290.30	7.8 ₹ 29,250	5.3 19875.00	23.67	4,260 1,59,75,000	-347 -13,01,250	358 13,42,500
19 Dec	278.50	2.4 ₹ 9,000	-0.9 -3375.00	23.14	1,619 60,71,250	76 2,85,000	709 26,58,750
18 Dec	279.25	3 ₹ 11,250	-0.7 -2625.00	25.71	2,254 84,52,500	-57 -2,13,750	645 24,18,750
17 Dec	279.45	3.65 ₹ 13,687.5	0.5 1875.00	27.49	3,093 1,15,98,750	257 9,63,750	705 26,43,750
16 Dec	276.85	2.9 ₹ 10,875	-1.15 -4312.50	27.66	1,265 47,43,750	44 1,65,000	451 16,91,250
15 Dec	278.70	3.9 ₹ 14,625	-0.3 -1125.00	26.94	1,434 53,77,500	-15 -56,250	407 15,26,250
12 Dec	278.15	4.1 ₹ 15,375	2.75 10312.50	25.73	2,802 1,05,07,500	109 4,08,750	405 15,18,750
11 Dec	264.30	1.4 ₹ 5,250	0 0.00	29.25	99 3,71,250	-8 -30,000	296 11,10,000
10 Dec	263.00	1.3 ₹ 4,875	-0.4 -1500.00	29.05	155 5,81,250	1 3,750	304 11,40,000
9 Dec	265.65	1.6 ₹ 6,000	-0.8 -3000.00	28.38	289 10,83,750	-34 -1,27,500	304 11,40,000
8 Dec	268.35	2.25 ₹ 8,437.5	-1.15 -4312.50	28.46	447 16,76,250	-36 -1,35,000	340 12,75,000
5 Dec	273.15	3.35 ₹ 12,562.5	0.7 2625.00	24.86	823 30,86,250	-163 -6,11,250	379 14,21,250
4 Dec	269.25	2.6 ₹ 9,750	0.15 562.50	25.79	195 7,31,250	21 78,750	542 20,32,500

3 Dec	266.50	2.45 ₹ 9,187.5	0.25 937.50	25.99	257 9,63,750	113 4,23,750	521 19,53,750
2 Dec	265.15	2.2 ₹ 8,250	0 0.00	27.15	73 2,73,750	6 22,500	409 15,33,750
1 Dec	263.80	2.15 ₹ 8,062.5	0.52 1950.00	27.14	226 8,47,500	25 93,750	405 15,18,750
28 Nov	259.98	1.69 ₹ 6,337.5	-0.29 -1087.50	26.74	332 12,45,000	194 7,27,500	380 14,25,000
27 Nov	261.33	1.95 ₹ 7,312.5	0.48 1800.00	27.00	248 9,30,000	68 2,55,000	185 6,93,750
26 Nov	258.18	1.47 ₹ 5,512.5	0.2 750.00	26.58	85 3,18,750	42 1,57,500	117 4,38,750
25 Nov	253.97	1.26 ₹ 4,725	0.19 712.50	27.72	72 2,70,000	22 82,500	75 2,81,250
24 Nov	251.06	1.09 ₹ 4,087.5	-0.07 -262.50	28.90	52 1,95,000	8 30,000	53 1,98,750
21 Nov	250.68	1.14 ₹ 4,275	-1.36 -5100.00	28.13	21 78,750	3 11,250	46 1,72,500
20 Nov	257.62	2.7 ₹ 10,125	0.69 2587.50	29.34	32 1,20,000	6 22,500	41 1,53,750
19 Nov	256.60	2.01 ₹ 7,537.5	-0.24 -900.00	27.10	32 1,20,000	24 90,000	35 1,31,250
18 Nov	257.30	2.23 ₹ 8,362.5	-0.77 -2887.50	27.62	9 33,750	2 7,500	11 41,250
17 Nov	260.76	3 ₹ 11,250	-0.5 -1875.00	27.05	4 15,000	3 11,250	8 30,000
14 Nov	262.57	3.5 ₹ 13,125	-1.3 -4875.00	25.98	7 26,250	5 18,750	5 18,750
13 Nov	268.67	4.8 ₹ 18,000	0 0.00	3.96	0 0	0 0	0 0
12 Nov	266.95	4.8 ₹ 18,000	0 0.00	4.58	0 0	0 0	0 0
11 Nov	265.66	4.8 ₹ 18,000	0 0.00	4.69	0 0	0 0	0 0

For National Aluminium Co Ltd - strike price 285 expiring on 30DEC2025

Delta for 285 CE is 0.82

Historical price for 285 CE is as follows

On 24 Dec NATIONALUM was trading at 295.30. The strike last trading price was 12.2, which was 4.45 higher than the previous day. The implied volatity was 32.86, the open interest changed by -24 which decreased total open position to 293

On 23 Dec NATIONALUM was trading at 290.15. The strike last trading price was 7.55, which was -0.3 lower than the previous day. The implied volatity was 24.94, the open interest changed by -34 which decreased total open position to 320

On 22 Dec NATIONALUM was trading at 290.30. The strike last trading price was 7.8, which was 5.3 higher than the previous day. The implied volatity was 23.67, the open interest changed by -347 which decreased total open position to 358

On 19 Dec NATIONALUM was trading at 278.50. The strike last trading price was 2.4, which was -0.9 lower than the previous day. The implied volatity was 23.14, the open interest changed by 76 which increased total open position to 709

On 18 Dec NATIONALUM was trading at 279.25. The strike last trading price was 3, which was -0.7 lower than the previous day. The implied volatity was 25.71, the open interest changed by -57 which decreased total open position to 645

On 17 Dec NATIONALUM was trading at 279.45. The strike last trading price was 3.65, which was 0.5 higher than the previous day. The implied volatity was 27.49, the open interest changed by 257 which increased total open position to 705

On 16 Dec NATIONALUM was trading at 276.85. The strike last trading price was 2.9, which was -1.15 lower than the previous day. The implied volatity was 27.66, the open interest changed by 44 which increased total open position to 451

On 15 Dec NATIONALUM was trading at 278.70. The strike last trading price was 3.9, which was -0.3 lower than the previous day. The implied volatity was 26.94, the open interest changed by -15 which decreased total open position to 407

On 12 Dec NATIONALUM was trading at 278.15. The strike last trading price was 4.1, which was 2.75 higher than the previous day. The implied volatity was 25.73, the open interest changed by 109 which increased total open position to 405

On 11 Dec NATIONALUM was trading at 264.30. The strike last trading price was 1.4, which was 0 lower than the previous day. The implied volatity was 29.25, the open interest changed by -8 which decreased total open position to 296

On 10 Dec NATIONALUM was trading at 263.00. The strike last trading price was 1.3, which was -0.4 lower than the previous day. The implied volatity was 29.05, the open interest changed by 1 which increased total open position to 304

On 9 Dec NATIONALUM was trading at 265.65. The strike last trading price was 1.6, which was -0.8 lower than the previous day. The implied volatity was 28.38, the open interest changed by -34 which decreased total open position to 304

On 8 Dec NATIONALUM was trading at 268.35. The strike last trading price was 2.25, which was -1.15 lower than the previous day. The implied volatity was 28.46, the open interest changed by -36 which decreased total open position to 340

On 5 Dec NATIONALUM was trading at 273.15. The strike last trading price was 3.35, which was 0.7 higher than the previous day. The implied volatity was 24.86, the open interest changed by -163 which decreased total open position to 379

On 4 Dec NATIONALUM was trading at 269.25. The strike last trading price was 2.6, which was 0.15 higher than the previous day. The implied volatity was 25.79, the open interest changed by 21 which increased total open position to 542

On 3 Dec NATIONALUM was trading at 266.50. The strike last trading price was 2.45, which was 0.25 higher than the previous day. The implied volatity was 25.99, the open interest changed by 113 which increased total open position to 521

On 2 Dec NATIONALUM was trading at 265.15. The strike last trading price was 2.2, which was 0 lower than the previous day. The implied volatity was 27.15, the open interest changed by 6 which increased total open position to 409

On 1 Dec NATIONALUM was trading at 263.80. The strike last trading price was 2.15, which was 0.52 higher than the previous day. The implied volatity was 27.14, the open interest changed by 25 which increased total open position to 405

On 28 Nov NATIONALUM was trading at 259.98. The strike last trading price was 1.69, which was -0.29 lower than the previous day. The implied volatity was 26.74, the open interest changed by 194 which increased total open position to 380

On 27 Nov NATIONALUM was trading at 261.33. The strike last trading price was 1.95, which was 0.48 higher than the previous day. The implied volatity was 27.00, the open interest changed by 68 which increased total open position to 185

On 26 Nov NATIONALUM was trading at 258.18. The strike last trading price was 1.47, which was 0.2 higher than the previous day. The implied volatity was 26.58, the open interest changed by 42 which increased total open position to 117

On 25 Nov NATIONALUM was trading at 253.97. The strike last trading price was 1.26, which was 0.19 higher than the previous day. The implied volatity was 27.72, the open interest changed by 22 which increased total open position to 75

On 24 Nov NATIONALUM was trading at 251.06. The strike last trading price was 1.09, which was -0.07 lower than the previous day. The implied volatity was 28.90, the open interest changed by 8 which increased total open position to 53

On 21 Nov NATIONALUM was trading at 250.68. The strike last trading price was 1.14, which was -1.36 lower than the previous day. The implied volatity was 28.13, the open interest changed by 3 which increased total open position to 46

On 20 Nov NATIONALUM was trading at 257.62. The strike last trading price was 2.7, which was 0.69 higher than the previous day. The implied volatity was 29.34, the open interest changed by 6 which increased total open position to 41

On 19 Nov NATIONALUM was trading at 256.60. The strike last trading price was 2.01, which was -0.24 lower than the previous day. The implied volatity was 27.10, the open interest changed by 24 which increased total open position to 35

On 18 Nov NATIONALUM was trading at 257.30. The strike last trading price was 2.23, which was -0.77 lower than the previous day. The implied volatity was 27.62, the open interest changed by 2 which increased total open position to 11

On 17 Nov NATIONALUM was trading at 260.76. The strike last trading price was 3, which was -0.5 lower than the previous day. The implied volatity was 27.05, the open interest changed by 3 which increased total open position to 8

On 14 Nov NATIONALUM was trading at 262.57. The strike last trading price was 3.5, which was -1.3 lower than the previous day. The implied volatity was 25.98, the open interest changed by 5 which increased total open position to 5

On 13 Nov NATIONALUM was trading at 268.67. The strike last trading price was 4.8, which was 0 lower than the previous day. The implied volatity was 3.96, 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 4.8, which was 0 lower than the previous day. The implied volatity was 4.58, 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 4.8, which was 0 lower than the previous day. The implied volatity was 4.69, the open interest changed by 0 which decreased total open position to 0

NATIONALUM 30DEC2025 285 PE
Delta: -0.15 Vega: 0.09 Theta: -0.21 Gamma: 0.02
Date	Close	Ltp	Change	IV	Volume	OI Chg	OI
24 Dec	295.30	0.9 ₹ 3,375	-1.15 -4312.50	29.36	1,811 67,91,250	80 3,00,000	658 24,67,500
23 Dec	290.15	2.1 ₹ 7,875	-0.65 -2437.50	27.85	1,404 52,65,000	102 3,82,500	585 21,93,750
22 Dec	290.30	2.75 ₹ 10,312.5	-5.55 -20812.50	30.96	2,493 93,48,750	261 9,78,750	487 18,26,250
19 Dec	278.50	7.95 ₹ 29,812.5	-0.7 -2625.00	25.44	64 2,40,000	-1 -3,750	226 8,47,500
18 Dec	279.25	9.05 ₹ 33,937.5	0.2 750.00	29.60	158 5,92,500	-10 -37,500	228 8,55,000
17 Dec	279.45	9 ₹ 33,750	-2 -7500.00	29.06	316 11,85,000	189 7,08,750	240 9,00,000
16 Dec	276.85	11.15 ₹ 41,812.5	1.45 5437.50	29.44	66 2,47,500	13 48,750	52 1,95,000
15 Dec	278.70	9.7 ₹ 36,375	-0.95 -3562.50	30.03	20 75,000	-4 -15,000	39 1,46,250
12 Dec	278.15	10.35 ₹ 38,812.5	-6.65 -24937.50	29.74	74 2,77,500	21 78,750	43 1,61,250
11 Dec	264.30	17 ₹ 63,750	3.5 13125.00	-	0 0	0 0	22 82,500
10 Dec	263.00	17 ₹ 63,750	3.5 13125.00	-	0 0	0 0	22 82,500
9 Dec	265.65	17 ₹ 63,750	3.5 13125.00	-	0 0	-7 -26,250	0 0
8 Dec	268.35	17 ₹ 63,750	3.5 13125.00	23.24	8 30,000	-6 -22,500	23 86,250
5 Dec	273.15	13.45 ₹ 50,437.5	-4.35 -16312.50	26.03	12 45,000	6 22,500	28 1,05,000
4 Dec	269.25	17.8 ₹ 66,750	-2.15 -8062.50	31.79	5 18,750	1 3,750	20 75,000
3 Dec	266.50	19.9 ₹ 74,625	-0.85 -3187.50	35.97	3 11,250	-1 -3,750	19 71,250
2 Dec	265.15	20.9 ₹ 78,375	-0.35 -1312.50	31.17	5 18,750	1 3,750	19 71,250
1 Dec	263.80	21.25 ₹ 79,687.5	-8.65 -32437.50	29.73	3 11,250	1 3,750	18 67,500
28 Nov	259.98	29.9 ₹ 1,12,125	-3.03 -11362.50	-	0 0	0 0	0 0
27 Nov	261.33	29.9 ₹ 1,12,125	-3.03 -11362.50	-	0 0	0 0	0 0
26 Nov	258.18	29.9 ₹ 1,12,125	-3.03 -11362.50	-	0 0	1 3,750	0 0
25 Nov	253.97	29.9 ₹ 1,12,125	-3.03 -11362.50	32.05	1 3,750	0 0	16 60,000
24 Nov	251.06	32.93 ₹ 1,23,487.5	6.93 25987.50	31.25	5 18,750	0 0	12 45,000
21 Nov	250.68	26 ₹ 97,500	-36.3 -136125.00	-	0 0	12 45,000	0 0
20 Nov	257.62	26 ₹ 97,500	-36.3 -136125.00	29.57	12 45,000	6 22,500	6 22,500
19 Nov	256.60	62.3 ₹ 2,33,625	0 0.00	-	0 0	0 0	0 0
18 Nov	257.30	62.3 ₹ 2,33,625	0 0.00	-	0 0	0 0	0 0
17 Nov	260.76	62.3 ₹ 2,33,625	0 0.00	-	0 0	0 0	0 0
14 Nov	262.57	62.3 ₹ 2,33,625	0 0.00	-	0 0	0 0	0 0
13 Nov	268.67	62.3 ₹ 2,33,625	0 0.00	-	0 0	0 0	0 0
12 Nov	266.95	62.3 ₹ 2,33,625	0 0.00	-	0 0	0 0	0 0
11 Nov	265.66	62.3 ₹ 2,33,625	0 0.00	-	0 0	0 0	0 0

For National Aluminium Co Ltd - strike price 285 expiring on 30DEC2025

Delta for 285 PE is -0.15

Historical price for 285 PE is as follows

On 24 Dec NATIONALUM was trading at 295.30. The strike last trading price was 0.9, which was -1.15 lower than the previous day. The implied volatity was 29.36, the open interest changed by 80 which increased total open position to 658

On 23 Dec NATIONALUM was trading at 290.15. The strike last trading price was 2.1, which was -0.65 lower than the previous day. The implied volatity was 27.85, the open interest changed by 102 which increased total open position to 585

On 22 Dec NATIONALUM was trading at 290.30. The strike last trading price was 2.75, which was -5.55 lower than the previous day. The implied volatity was 30.96, the open interest changed by 261 which increased total open position to 487

On 19 Dec NATIONALUM was trading at 278.50. The strike last trading price was 7.95, which was -0.7 lower than the previous day. The implied volatity was 25.44, the open interest changed by -1 which decreased total open position to 226

On 18 Dec NATIONALUM was trading at 279.25. The strike last trading price was 9.05, which was 0.2 higher than the previous day. The implied volatity was 29.60, the open interest changed by -10 which decreased total open position to 228

On 17 Dec NATIONALUM was trading at 279.45. The strike last trading price was 9, which was -2 lower than the previous day. The implied volatity was 29.06, the open interest changed by 189 which increased total open position to 240

On 16 Dec NATIONALUM was trading at 276.85. The strike last trading price was 11.15, which was 1.45 higher than the previous day. The implied volatity was 29.44, the open interest changed by 13 which increased total open position to 52

On 15 Dec NATIONALUM was trading at 278.70. The strike last trading price was 9.7, which was -0.95 lower than the previous day. The implied volatity was 30.03, the open interest changed by -4 which decreased total open position to 39

On 12 Dec NATIONALUM was trading at 278.15. The strike last trading price was 10.35, which was -6.65 lower than the previous day. The implied volatity was 29.74, the open interest changed by 21 which increased total open position to 43

On 11 Dec NATIONALUM was trading at 264.30. The strike last trading price was 17, which was 3.5 higher than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 22

On 10 Dec NATIONALUM was trading at 263.00. The strike last trading price was 17, which was 3.5 higher than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 22

On 9 Dec NATIONALUM was trading at 265.65. The strike last trading price was 17, which was 3.5 higher than the previous day. The implied volatity was -, the open interest changed by -7 which decreased total open position to 0

On 8 Dec NATIONALUM was trading at 268.35. The strike last trading price was 17, which was 3.5 higher than the previous day. The implied volatity was 23.24, the open interest changed by -6 which decreased total open position to 23

On 5 Dec NATIONALUM was trading at 273.15. The strike last trading price was 13.45, which was -4.35 lower than the previous day. The implied volatity was 26.03, the open interest changed by 6 which increased total open position to 28

On 4 Dec NATIONALUM was trading at 269.25. The strike last trading price was 17.8, which was -2.15 lower than the previous day. The implied volatity was 31.79, the open interest changed by 1 which increased total open position to 20

On 3 Dec NATIONALUM was trading at 266.50. The strike last trading price was 19.9, which was -0.85 lower than the previous day. The implied volatity was 35.97, the open interest changed by -1 which decreased total open position to 19

On 2 Dec NATIONALUM was trading at 265.15. The strike last trading price was 20.9, which was -0.35 lower than the previous day. The implied volatity was 31.17, the open interest changed by 1 which increased total open position to 19

On 1 Dec NATIONALUM was trading at 263.80. The strike last trading price was 21.25, which was -8.65 lower than the previous day. The implied volatity was 29.73, the open interest changed by 1 which increased total open position to 18

On 28 Nov NATIONALUM was trading at 259.98. The strike last trading price was 29.9, which was -3.03 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 29.9, which was -3.03 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 NATIONALUM was trading at 258.18. The strike last trading price was 29.9, which was -3.03 lower than the previous day. The implied volatity was -, the open interest changed by 1 which increased total open position to 0

On 25 Nov NATIONALUM was trading at 253.97. The strike last trading price was 29.9, which was -3.03 lower than the previous day. The implied volatity was 32.05, the open interest changed by 0 which decreased total open position to 16

On 24 Nov NATIONALUM was trading at 251.06. The strike last trading price was 32.93, which was 6.93 higher than the previous day. The implied volatity was 31.25, the open interest changed by 0 which decreased total open position to 12

On 21 Nov NATIONALUM was trading at 250.68. The strike last trading price was 26, which was -36.3 lower than the previous day. The implied volatity was -, the open interest changed by 12 which increased total open position to 0

On 20 Nov NATIONALUM was trading at 257.62. The strike last trading price was 26, which was -36.3 lower than the previous day. The implied volatity was 29.57, the open interest changed by 6 which increased total open position to 6

On 19 Nov NATIONALUM was trading at 256.60. The strike last trading price was 62.3, 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 62.3, 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 62.3, 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 62.3, 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 62.3, 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 62.3, 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 62.3, 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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