NATIONALUM

National Aluminium Co Ltd

354.65 -9.20 (-2.53%)

L: 349.55 H: 357.5

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Historical option data for NATIONALUM
06 Feb 2026 04:11 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 24-FEB-2026 370 CE
Delta: 0.36 Vega: 0.29 Theta: -0.4 Gamma: 0.01
Date	Close	Ltp	Change	IV	Volume	OI Chg	OI
6 Feb	354.65	8.15 ₹ 30,562.5	-3.6 -13500.00	44.91	797 29,88,750	85 3,18,750	854 32,02,500
5 Feb	363.85	11.35 ₹ 42,562.5	-5.75 -21562.50	39.33	1,474 55,27,500	12 45,000	775 29,06,250
4 Feb	374.90	16.8 ₹ 63,000	0.75 2812.50	37.45	1,322 49,57,500	-108 -4,05,000	764 28,65,000
3 Feb	370.85	15.8 ₹ 59,250	0.1 375.00	39.35	3,863 1,44,86,250	228 8,55,000	880 33,00,000
2 Feb	369.70	16.3 ₹ 61,125	6.8 25500.00	39.68	4,063 1,52,36,250	80 3,00,000	624 23,40,000
1 Feb	354.20	9.3 ₹ 34,875	-18.05 -67687.50	42.78	2,298 86,17,500	231 8,66,250	546 20,47,500
30 Jan	385.45	25.05 ₹ 93,937.5	-34.25 -128437.50	41.15	144 5,40,000	-40 -1,50,000	315 11,81,250
29 Jan	428.85	58.8 ₹ 2,20,500	18.65 69937.50	37.29	87 3,26,250	-19 -71,250	355 13,31,250
28 Jan	406.15	41.35 ₹ 1,55,062.5	17.4 65250.00	26.55	468 17,55,000	-79 -2,96,250	375 14,06,250
27 Jan	384.60	24.05 ₹ 90,187.5	7.1 26625.00	31.15	1,137 42,63,750	14 52,500	460 17,25,000
23 Jan	370.65	17.15 ₹ 64,312.5	3.4 12750.00	33.64	1,686 63,22,500	-25 -93,750	441 16,53,750
22 Jan	364.60	13.7 ₹ 51,375	0.7 2625.00	33.16	508 19,05,000	39 1,46,250	467 17,51,250
21 Jan	361.50	13.25 ₹ 49,687.5	1.25 4687.50	33.82	474 17,77,500	96 3,60,000	431 16,16,250
20 Jan	358.95	12.45 ₹ 46,687.5	-3.6 -13500.00	35.77	324 12,15,000	79 2,96,250	334 12,52,500
19 Jan	368.65	16.1 ₹ 60,375	1.9 7125.00	32.44	375 14,06,250	162 6,07,500	255 9,56,250
16 Jan	361.60	14.3 ₹ 53,625	-5.5 -20625.00	34.77	84 3,15,000	33 1,23,750	93 3,48,750
14 Jan	373.55	19.5 ₹ 73,125	6.7 25125.00	30.83	162 6,07,500	18 67,500	60 2,25,000

13 Jan	357.40	12.7 ₹ 47,625	1.85 6937.50	34.25	72 2,70,000	10 37,500	41 1,53,750
12 Jan	350.05	10.8 ₹ 40,500	1.05 3937.50	34.97	29 1,08,750	8 30,000	30 1,12,500
9 Jan	348.05	9.75 ₹ 36,562.5	3.2 12000.00	32.98	38 1,42,500	5 18,750	22 82,500
8 Jan	333.50	6.3 ₹ 23,625	-4.6 -17250.00	36.14	15 56,250	-1 -3,750	18 67,500
7 Jan	352.60	10.9 ₹ 40,875	1.1 4125.00	31.41	8 30,000	2 7,500	20 75,000
6 Jan	346.70	9.8 ₹ 36,750	6.9 25875.00	32.31	32 1,20,000	17 63,750	17 63,750

For National Aluminium Co Ltd - strike price 370 expiring on 24FEB2026

Delta for 370 CE is 0.36

Historical price for 370 CE is as follows

On 6 Feb NATIONALUM was trading at 354.65. The strike last trading price was 8.15, which was -3.6 lower than the previous day. The implied volatity was 44.91, the open interest changed by 85 which increased total open position to 854

On 5 Feb NATIONALUM was trading at 363.85. The strike last trading price was 11.35, which was -5.75 lower than the previous day. The implied volatity was 39.33, the open interest changed by 12 which increased total open position to 775

On 4 Feb NATIONALUM was trading at 374.90. The strike last trading price was 16.8, which was 0.75 higher than the previous day. The implied volatity was 37.45, the open interest changed by -108 which decreased total open position to 764

On 3 Feb NATIONALUM was trading at 370.85. The strike last trading price was 15.8, which was 0.1 higher than the previous day. The implied volatity was 39.35, the open interest changed by 228 which increased total open position to 880

On 2 Feb NATIONALUM was trading at 369.70. The strike last trading price was 16.3, which was 6.8 higher than the previous day. The implied volatity was 39.68, the open interest changed by 80 which increased total open position to 624

On 1 Feb NATIONALUM was trading at 354.20. The strike last trading price was 9.3, which was -18.05 lower than the previous day. The implied volatity was 42.78, the open interest changed by 231 which increased total open position to 546

On 30 Jan NATIONALUM was trading at 385.45. The strike last trading price was 25.05, which was -34.25 lower than the previous day. The implied volatity was 41.15, the open interest changed by -40 which decreased total open position to 315

On 29 Jan NATIONALUM was trading at 428.85. The strike last trading price was 58.8, which was 18.65 higher than the previous day. The implied volatity was 37.29, the open interest changed by -19 which decreased total open position to 355

On 28 Jan NATIONALUM was trading at 406.15. The strike last trading price was 41.35, which was 17.4 higher than the previous day. The implied volatity was 26.55, the open interest changed by -79 which decreased total open position to 375

On 27 Jan NATIONALUM was trading at 384.60. The strike last trading price was 24.05, which was 7.1 higher than the previous day. The implied volatity was 31.15, the open interest changed by 14 which increased total open position to 460

On 23 Jan NATIONALUM was trading at 370.65. The strike last trading price was 17.15, which was 3.4 higher than the previous day. The implied volatity was 33.64, the open interest changed by -25 which decreased total open position to 441

On 22 Jan NATIONALUM was trading at 364.60. The strike last trading price was 13.7, which was 0.7 higher than the previous day. The implied volatity was 33.16, the open interest changed by 39 which increased total open position to 467

On 21 Jan NATIONALUM was trading at 361.50. The strike last trading price was 13.25, which was 1.25 higher than the previous day. The implied volatity was 33.82, the open interest changed by 96 which increased total open position to 431

On 20 Jan NATIONALUM was trading at 358.95. The strike last trading price was 12.45, which was -3.6 lower than the previous day. The implied volatity was 35.77, the open interest changed by 79 which increased total open position to 334

On 19 Jan NATIONALUM was trading at 368.65. The strike last trading price was 16.1, which was 1.9 higher than the previous day. The implied volatity was 32.44, the open interest changed by 162 which increased total open position to 255

On 16 Jan NATIONALUM was trading at 361.60. The strike last trading price was 14.3, which was -5.5 lower than the previous day. The implied volatity was 34.77, the open interest changed by 33 which increased total open position to 93

On 14 Jan NATIONALUM was trading at 373.55. The strike last trading price was 19.5, which was 6.7 higher than the previous day. The implied volatity was 30.83, the open interest changed by 18 which increased total open position to 60

On 13 Jan NATIONALUM was trading at 357.40. The strike last trading price was 12.7, which was 1.85 higher than the previous day. The implied volatity was 34.25, the open interest changed by 10 which increased total open position to 41

On 12 Jan NATIONALUM was trading at 350.05. The strike last trading price was 10.8, which was 1.05 higher than the previous day. The implied volatity was 34.97, the open interest changed by 8 which increased total open position to 30

On 9 Jan NATIONALUM was trading at 348.05. The strike last trading price was 9.75, which was 3.2 higher than the previous day. The implied volatity was 32.98, the open interest changed by 5 which increased total open position to 22

On 8 Jan NATIONALUM was trading at 333.50. The strike last trading price was 6.3, which was -4.6 lower than the previous day. The implied volatity was 36.14, the open interest changed by -1 which decreased total open position to 18

On 7 Jan NATIONALUM was trading at 352.60. The strike last trading price was 10.9, which was 1.1 higher than the previous day. The implied volatity was 31.41, the open interest changed by 2 which increased total open position to 20

On 6 Jan NATIONALUM was trading at 346.70. The strike last trading price was 9.8, which was 6.9 higher than the previous day. The implied volatity was 32.31, the open interest changed by 17 which increased total open position to 17

NATIONALUM 24FEB2026 370 PE
Delta: -0.63 Vega: 0.3 Theta: -0.33 Gamma: 0.01
Date	Close	Ltp	Change	IV	Volume	OI Chg	OI
6 Feb	354.65	23.9 ₹ 89,625	2.6 9750.00	48.2	78 2,92,500	-37 -1,38,750	524 19,65,000
5 Feb	363.85	21.1 ₹ 79,125	6.05 22687.50	57.65	379 14,21,250	-75 -2,81,250	579 21,71,250
4 Feb	374.90	14.8 ₹ 55,500	-3 -11250.00	52.19	596 22,35,000	59 2,21,250	656 24,60,000
3 Feb	370.85	17.5 ₹ 65,625	-1.35 -5062.50	54.47	1,020 38,25,000	82 3,07,500	596 22,35,000
2 Feb	369.70	18 ₹ 67,500	-10.45 -39187.50	54.75	616 23,10,000	42 1,57,500	514 19,27,500
1 Feb	354.20	29.05 ₹ 1,08,937.5	14.1 52875.00	58.47	459 17,21,250	-105 -3,93,750	472 17,70,000
30 Jan	385.45	15.65 ₹ 58,687.5	10.95 41062.50	57.67	1,440 54,00,000	136 5,10,000	577 21,63,750
29 Jan	428.85	4.9 ₹ 18,375	-1.65 -6187.50	56.91	516 19,35,000	95 3,56,250	441 16,53,750
28 Jan	406.15	6.3 ₹ 23,625	-5.95 -22312.50	48.77	1,372 51,45,000	-234 -8,77,500	347 13,01,250
27 Jan	384.60	11.9 ₹ 44,625	-6.5 -24375.00	47.39	1,247 46,76,250	50 1,87,500	581 21,78,750
23 Jan	370.65	18.1 ₹ 67,875	-1.5 -5625.00	46.77	787 29,51,250	-53 -1,98,750	532 19,95,000
22 Jan	364.60	19.6 ₹ 73,500	-2.2 -8250.00	42.71	235 8,81,250	0 0	585 21,93,750
21 Jan	361.50	21.7 ₹ 81,375	-2 -7500.00	44.64	205 7,68,750	87 3,26,250	585 21,93,750
20 Jan	358.95	23.3 ₹ 87,375	4.4 16500.00	42.88	214 8,02,500	45 1,68,750	498 18,67,500
19 Jan	368.65	19.05 ₹ 71,437.5	-3.2 -12000.00	43.84	479 17,96,250	401 15,03,750	454 17,02,500
16 Jan	361.60	22.25 ₹ 83,437.5	4.1 15375.00	41.95	35 1,31,250	6 22,500	53 1,98,750
14 Jan	373.55	18.2 ₹ 68,250	-9.8 -36750.00	44.37	75 2,81,250	41 1,53,750	44 1,65,000
13 Jan	357.40	28 ₹ 1,05,000	-62.4 -234000.00	-	0 0	0 0	0 0
12 Jan	350.05	28 ₹ 1,05,000	-62.4 -234000.00	40.41	3 11,250	0 0	0 0
9 Jan	348.05	90.4 ₹ 3,39,000	0 0.00	-	0 0	0 0	0 0
8 Jan	333.50	90.4 ₹ 3,39,000	0 0.00	-	0 0	0 0	0 0
7 Jan	352.60	90.4 ₹ 3,39,000	0 0.00	-	0 0	0 0	0 0
6 Jan	346.70	90.4 ₹ 3,39,000	0 0.00	-	0 0	0 0	0 0

For National Aluminium Co Ltd - strike price 370 expiring on 24FEB2026

Delta for 370 PE is -0.63

Historical price for 370 PE is as follows

On 6 Feb NATIONALUM was trading at 354.65. The strike last trading price was 23.9, which was 2.6 higher than the previous day. The implied volatity was 48.2, the open interest changed by -37 which decreased total open position to 524

On 5 Feb NATIONALUM was trading at 363.85. The strike last trading price was 21.1, which was 6.05 higher than the previous day. The implied volatity was 57.65, the open interest changed by -75 which decreased total open position to 579

On 4 Feb NATIONALUM was trading at 374.90. The strike last trading price was 14.8, which was -3 lower than the previous day. The implied volatity was 52.19, the open interest changed by 59 which increased total open position to 656

On 3 Feb NATIONALUM was trading at 370.85. The strike last trading price was 17.5, which was -1.35 lower than the previous day. The implied volatity was 54.47, the open interest changed by 82 which increased total open position to 596

On 2 Feb NATIONALUM was trading at 369.70. The strike last trading price was 18, which was -10.45 lower than the previous day. The implied volatity was 54.75, the open interest changed by 42 which increased total open position to 514

On 1 Feb NATIONALUM was trading at 354.20. The strike last trading price was 29.05, which was 14.1 higher than the previous day. The implied volatity was 58.47, the open interest changed by -105 which decreased total open position to 472

On 30 Jan NATIONALUM was trading at 385.45. The strike last trading price was 15.65, which was 10.95 higher than the previous day. The implied volatity was 57.67, the open interest changed by 136 which increased total open position to 577

On 29 Jan NATIONALUM was trading at 428.85. The strike last trading price was 4.9, which was -1.65 lower than the previous day. The implied volatity was 56.91, the open interest changed by 95 which increased total open position to 441

On 28 Jan NATIONALUM was trading at 406.15. The strike last trading price was 6.3, which was -5.95 lower than the previous day. The implied volatity was 48.77, the open interest changed by -234 which decreased total open position to 347

On 27 Jan NATIONALUM was trading at 384.60. The strike last trading price was 11.9, which was -6.5 lower than the previous day. The implied volatity was 47.39, the open interest changed by 50 which increased total open position to 581

On 23 Jan NATIONALUM was trading at 370.65. The strike last trading price was 18.1, which was -1.5 lower than the previous day. The implied volatity was 46.77, the open interest changed by -53 which decreased total open position to 532

On 22 Jan NATIONALUM was trading at 364.60. The strike last trading price was 19.6, which was -2.2 lower than the previous day. The implied volatity was 42.71, the open interest changed by 0 which decreased total open position to 585

On 21 Jan NATIONALUM was trading at 361.50. The strike last trading price was 21.7, which was -2 lower than the previous day. The implied volatity was 44.64, the open interest changed by 87 which increased total open position to 585

On 20 Jan NATIONALUM was trading at 358.95. The strike last trading price was 23.3, which was 4.4 higher than the previous day. The implied volatity was 42.88, the open interest changed by 45 which increased total open position to 498

On 19 Jan NATIONALUM was trading at 368.65. The strike last trading price was 19.05, which was -3.2 lower than the previous day. The implied volatity was 43.84, the open interest changed by 401 which increased total open position to 454

On 16 Jan NATIONALUM was trading at 361.60. The strike last trading price was 22.25, which was 4.1 higher than the previous day. The implied volatity was 41.95, the open interest changed by 6 which increased total open position to 53

On 14 Jan NATIONALUM was trading at 373.55. The strike last trading price was 18.2, which was -9.8 lower than the previous day. The implied volatity was 44.37, the open interest changed by 41 which increased total open position to 44

On 13 Jan NATIONALUM was trading at 357.40. The strike last trading price was 28, which was -62.4 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 0

On 12 Jan NATIONALUM was trading at 350.05. The strike last trading price was 28, which was -62.4 lower than the previous day. The implied volatity was 40.41, the open interest changed by 0 which decreased total open position to 0

On 9 Jan NATIONALUM was trading at 348.05. The strike last trading price was 90.4, 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 8 Jan NATIONALUM was trading at 333.50. The strike last trading price was 90.4, 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 7 Jan NATIONALUM was trading at 352.60. The strike last trading price was 90.4, 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 6 Jan NATIONALUM was trading at 346.70. The strike last trading price was 90.4, 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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