NATIONALUM

National Aluminium Co Ltd

373.55 +16.15 (4.52%)

L: 356.3 H: 374.3

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Historical option data for NATIONALUM
14 Jan 2026 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 350 CE
Delta: 0.91 Vega: 0.12 Theta: -0.21 Gamma: 0.01
Date	Close	Ltp	Change	IV	Volume	OI Chg	OI
14 Jan	373.55	25.85 ₹ 96,937.5	11.1 41625.00	28.05	1,146 42,97,500	-242 -9,07,500	588 22,05,000

13 Jan	357.40	14.5 ₹ 54,375	2.5 9375.00	35.57	2,396 89,85,000	-352 -13,20,000	830 31,12,500
12 Jan	350.05	12.35 ₹ 46,312.5	1.55 5812.50	39.21	5,786 2,16,97,500	152 5,70,000	1,203 45,11,250
9 Jan	348.05	11 ₹ 41,250	5 18750.00	34.44	4,224 1,58,40,000	-44 -1,65,000	1,039 38,96,250
8 Jan	333.50	5.85 ₹ 21,937.5	-7.35 -27562.50	38.58	3,689 1,38,33,750	72 2,70,000	1,081 40,53,750
7 Jan	352.60	13.15 ₹ 49,312.5	1.8 6750.00	32.3	5,686 2,13,22,500	-150 -5,62,500	1,033 38,73,750
6 Jan	346.70	11.75 ₹ 44,062.5	7.15 26812.50	34.66	12,177 4,56,63,750	489 18,33,750	1,195 44,81,250
5 Jan	330.80	4.6 ₹ 17,250	-0.1 -375.00	32.9	1,520 57,00,000	39 1,46,250	701 26,28,750
2 Jan	330.30	4.3 ₹ 16,125	2.25 8437.50	31.31	3,228 1,21,05,000	381 14,28,750	660 24,75,000
1 Jan	314.60	2.1 ₹ 7,875	-0.25 -937.50	33.84	277 10,38,750	55 2,06,250	277 10,38,750
31 Dec	314.30	2.3 ₹ 8,625	0 0.00	34.41	746 27,97,500	205 7,68,750	221 8,28,750
30 Dec	316.60	2.3 ₹ 8,625	-0.56 -2100.00	31.96	16 60,000	14 52,500	14 52,500

For National Aluminium Co Ltd - strike price 350 expiring on 27JAN2026

Delta for 350 CE is 0.91

Historical price for 350 CE is as follows

On 14 Jan NATIONALUM was trading at 373.55. The strike last trading price was 25.85, which was 11.1 higher than the previous day. The implied volatity was 28.05, the open interest changed by -242 which decreased total open position to 588

On 13 Jan NATIONALUM was trading at 357.40. The strike last trading price was 14.5, which was 2.5 higher than the previous day. The implied volatity was 35.57, the open interest changed by -352 which decreased total open position to 830

On 12 Jan NATIONALUM was trading at 350.05. The strike last trading price was 12.35, which was 1.55 higher than the previous day. The implied volatity was 39.21, the open interest changed by 152 which increased total open position to 1203

On 9 Jan NATIONALUM was trading at 348.05. The strike last trading price was 11, which was 5 higher than the previous day. The implied volatity was 34.44, the open interest changed by -44 which decreased total open position to 1039

On 8 Jan NATIONALUM was trading at 333.50. The strike last trading price was 5.85, which was -7.35 lower than the previous day. The implied volatity was 38.58, the open interest changed by 72 which increased total open position to 1081

On 7 Jan NATIONALUM was trading at 352.60. The strike last trading price was 13.15, which was 1.8 higher than the previous day. The implied volatity was 32.3, the open interest changed by -150 which decreased total open position to 1033

On 6 Jan NATIONALUM was trading at 346.70. The strike last trading price was 11.75, which was 7.15 higher than the previous day. The implied volatity was 34.66, the open interest changed by 489 which increased total open position to 1195

On 5 Jan NATIONALUM was trading at 330.80. The strike last trading price was 4.6, which was -0.1 lower than the previous day. The implied volatity was 32.9, the open interest changed by 39 which increased total open position to 701

On 2 Jan NATIONALUM was trading at 330.30. The strike last trading price was 4.3, which was 2.25 higher than the previous day. The implied volatity was 31.31, the open interest changed by 381 which increased total open position to 660

On 1 Jan NATIONALUM was trading at 314.60. The strike last trading price was 2.1, which was -0.25 lower than the previous day. The implied volatity was 33.84, the open interest changed by 55 which increased total open position to 277

On 31 Dec NATIONALUM was trading at 314.30. The strike last trading price was 2.3, which was 0 lower than the previous day. The implied volatity was 34.41, the open interest changed by 205 which increased total open position to 221

On 30 Dec NATIONALUM was trading at 316.60. The strike last trading price was 2.3, which was -0.56 lower than the previous day. The implied volatity was 31.96, the open interest changed by 14 which increased total open position to 14

NATIONALUM 27JAN2026 350 PE
Delta: -0.17 Vega: 0.18 Theta: -0.27 Gamma: 0.01
Date	Close	Ltp	Change	IV	Volume	OI Chg	OI
14 Jan	373.55	2.8 ₹ 10,500	-4 -15000.00	40.82	3,010 1,12,87,500	292 10,95,000	942 35,32,500
13 Jan	357.40	6.65 ₹ 24,937.5	-3.8 -14250.00	37.26	3,140 1,17,75,000	118 4,42,500	653 24,48,750
12 Jan	350.05	10 ₹ 37,500	-2.2 -8250.00	39.52	3,553 1,33,23,750	203 7,61,250	532 19,95,000
9 Jan	348.05	11.9 ₹ 44,625	-9 -33750.00	39.7	690 25,87,500	55 2,06,250	331 12,41,250
8 Jan	333.50	21.15 ₹ 79,312.5	9.95 37312.50	38.83	1,299 48,71,250	-280 -10,50,000	276 10,35,000
7 Jan	352.60	11 ₹ 41,250	-2.65 -9937.50	40.55	3,346 1,25,47,500	22 82,500	563 21,11,250
6 Jan	346.70	12.85 ₹ 48,187.5	-9.15 -34312.50	39.19	2,348 88,05,000	494 18,52,500	535 20,06,250
5 Jan	330.80	21.8 ₹ 81,750	-0.95 -3562.50	35.23	57 2,13,750	19 71,250	42 1,57,500
2 Jan	330.30	23.3 ₹ 87,375	-11.7 -43875.00	34.54	38 1,42,500	23 86,250	24 90,000
1 Jan	314.60	35 ₹ 1,31,250	-55.97 -209887.50	-	0 0	0 0	1 3,750
31 Dec	314.30	35 ₹ 1,31,250	-55.97 -209887.50	30.33	1 3,750	0 0	0 0
30 Dec	316.60	0 ₹ 0	0 0.00	-	0 0	0 0	0 0

For National Aluminium Co Ltd - strike price 350 expiring on 27JAN2026

Delta for 350 PE is -0.17

Historical price for 350 PE is as follows

On 14 Jan NATIONALUM was trading at 373.55. The strike last trading price was 2.8, which was -4 lower than the previous day. The implied volatity was 40.82, the open interest changed by 292 which increased total open position to 942

On 13 Jan NATIONALUM was trading at 357.40. The strike last trading price was 6.65, which was -3.8 lower than the previous day. The implied volatity was 37.26, the open interest changed by 118 which increased total open position to 653

On 12 Jan NATIONALUM was trading at 350.05. The strike last trading price was 10, which was -2.2 lower than the previous day. The implied volatity was 39.52, the open interest changed by 203 which increased total open position to 532

On 9 Jan NATIONALUM was trading at 348.05. The strike last trading price was 11.9, which was -9 lower than the previous day. The implied volatity was 39.7, the open interest changed by 55 which increased total open position to 331

On 8 Jan NATIONALUM was trading at 333.50. The strike last trading price was 21.15, which was 9.95 higher than the previous day. The implied volatity was 38.83, the open interest changed by -280 which decreased total open position to 276

On 7 Jan NATIONALUM was trading at 352.60. The strike last trading price was 11, which was -2.65 lower than the previous day. The implied volatity was 40.55, the open interest changed by 22 which increased total open position to 563

On 6 Jan NATIONALUM was trading at 346.70. The strike last trading price was 12.85, which was -9.15 lower than the previous day. The implied volatity was 39.19, the open interest changed by 494 which increased total open position to 535

On 5 Jan NATIONALUM was trading at 330.80. The strike last trading price was 21.8, which was -0.95 lower than the previous day. The implied volatity was 35.23, the open interest changed by 19 which increased total open position to 42

On 2 Jan NATIONALUM was trading at 330.30. The strike last trading price was 23.3, which was -11.7 lower than the previous day. The implied volatity was 34.54, the open interest changed by 23 which increased total open position to 24

On 1 Jan NATIONALUM was trading at 314.60. The strike last trading price was 35, which was -55.97 lower than the previous day. The implied volatity was -, the open interest changed by 0 which decreased total open position to 1

On 31 Dec NATIONALUM was trading at 314.30. The strike last trading price was 35, which was -55.97 lower than the previous day. The implied volatity was 30.33, the open interest changed by 0 which decreased total open position to 0

On 30 Dec NATIONALUM was trading at 316.60. The strike last trading price was 0, 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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