National Aluminium Co. (NATIONALUM) Option Chain
323.70+15.50 (5.03%)
Previous close: .
23 Nov
| 1D Build | Volume (K) | OI (K) | LTP (₹) |
|---|---|---|---|
| Neutral | 0 | 0.000 | 81.60 |
| Neutral | 0 | 15.000 | 26.70 |
| Neutral | 0 | 20.625 | 32.00 |
| Neutral | 0 | 28.125 | 29.45 |
| Neutral | 28.125 | 240.000 | 34.65+31.25% |
| Neutral | 0 | 105.000 | 22.50 |
| Short cover | 270 | 768.750-3.53% | 26.50+34.86% |
| Long build | 178.125 | 253.125+7.14% | 22.60+37.80% |
| Short cover | 909.375 | 986.250-4.54% | 19.30+39.86% |
| Short cover | 1,113.75 | 388.125-2.36% | 16.10+42.48% |
| Short cover | 4,123.125 | 1,222.500-24.45% | 13.40+45.65% |
| Long build | 2,235 | 376.875+43.57% | 10.95+46.98% |
| Long build | 5,475 | 1,747.500+80.97% | 8.85+46.28% |
| Long build | 1,093.125 | 348.750+58.97% | 7.10+52.69% |
| Long build | 1,985.625 | 618.750+62.56% | 5.70+58.33% |
| Long build | 333.75 | 151.875+145.45% | 4.50+55.17% |
| Long build | 3,551.25 | 1,271.250+27.44% | 3.55+73.17% |
| Short build | 435 | 165.000 | 2.90-88.19% |
| Long build | 1,423.125 | 380.625+56.15% | 2.20+62.96% |
| Long build | 420 | 189.375+260.71% | 1.80+50.00% |
| Long build | 431.25 | 311.250+16.90% | 1.40+75.00% |
| Strike |
|---|
| 270.00 |
| 275.00 |
| 280.00 |
| 285.00 |
| 290.00 |
| 295.00 |
| 300.00 |
| 305.00 |
| 310.00 |
| 315.00 |
Max Pain |
| 325.00 |
| 330.00 |
| 335.00 |
| 340.00 |
| 345.00 |
| 350.00 |
| 355.00 |
| 360.00 |
| 365.00 |
| 370.00 |
| LTP (₹) | OI (K) | Volume (K) | 1D Build |
|---|---|---|---|
| 1.30-36.59% | 123.750+6.45% | 163.125 | Short build |
| 1.75-28.57% | 181.875+410.53% | 397.5 | Short build |
| 2.15-31.75% | 365.625+4.28% | 330 | Short build |
| 2.75-31.25% | 95.625+21.43% | 200.625 | Short build |
| 3.45-35.51% | 316.875-22.83% | 676.875 | Long unwind |
| 4.25-34.62% | 144.375+30.51% | 292.5 | Short build |
| 5.45-32.30% | 1,141.875-8.01% | 1,706.25 | Long unwind |
| 6.75-33.50% | 457.500+19.61% | 406.875 | Short build |
| 8.25-33.47% | 1,273.125+9.87% | 1,233.75 | Short build |
| 10.25-31.21% | 656.250+34.10% | 1,308.75 | Short build |
| 12.50-29.18% | 1,008.750+18.24% | 1,792.5 | Short build |
| 15.20-26.39% | 153.750+115.79% | 474.375 | Short build |
| 17.75-25.58% | 438.750+35.26% | 315 | Short build |
| 21.05-21.31% | 50.625+200.00% | 61.875 | Short build |
| 24.50-24.38% | 318.750+8.97% | 76.875 | Short build |
| 37.00 | 1.875 | 0 | Neutral |
| 32.25-18.25% | 1,228.125-0.30% | 65.625 | Long unwind |
| 29.70 | 0.000 | 0 | Neutral |
| 40.25-16.67% | 180.000-1.03% | 16.875 | Long unwind |
| 47.50 | 5.625 | 0 | Neutral |
| 49.50-17.77% | 153.750+2.50% | 5.625 | Short build |
FAQs
What is the put-call ratio (PCR) of National Aluminium Co. (NATIONALUM) today?
As of 15:40 IST on 28 Oct 2026, National Aluminium Co. (NATIONALUM) put-call ratio (PCR) for the 23 Nov expiry is 0.90. Put open interest stands at 98,55,000 shares against 1,09,81,875 shares on the call side. PCR is total put open interest divided by total call open interest: above 1 leans bullish, below about 0.7 leans bearish, and roughly 0.8–1.0 is neutral.
What is the max pain for National Aluminium Co. (NATIONALUM) options for the 23 Nov expiry?
As of 15:40 IST on 28 Oct 2026, National Aluminium Co. (NATIONALUM) max pain for the 23 Nov expiry is 320.00. Spot is 323.70, 3.70 points (1.16%) above it, with 26 days to expiry. Max pain is the strike at which option buyers would lose the most at expiry, and price often drifts towards it in the final days.
Which National Aluminium Co. (NATIONALUM) strike has the highest call and put open interest?
As of 15:40 IST on 28 Oct 2026, National Aluminium Co. (NATIONALUM) has its highest call open interest at the 330.00 strike (17,47,500 shares) and its highest put open interest at the 310.00 strike (12,73,125 shares) for the 23 Nov expiry. These are the peaks among the near-the-money strikes on this chain. Heavy call open interest often caps the price as resistance, and heavy put open interest often holds it as support.
What are the support and resistance levels of National Aluminium Co. (NATIONALUM) from the option chain?
As of 15:40 IST on 28 Oct 2026, National Aluminium Co. (NATIONALUM) option chain marks support at 310.00 and resistance at 330.00 for the 23 Nov expiry. Spot is 323.70, 13.70 points (4.42%) above support and 6.30 points (1.91%) below resistance, with 26 days to expiry. Sahi scores the strikes near spot by open interest, fresh build-up and distance from the price, so these levels can differ from the single highest open-interest strikes. Put writers tend to defend support and call writers tend to defend resistance.
What is the expected move for National Aluminium Co. (NATIONALUM) by the 23 Nov expiry?
As of 15:40 IST on 28 Oct 2026, the expected move for National Aluminium Co. (NATIONALUM) by the 23 Nov expiry is ±25.90 (8.00%). From the spot price of 323.70, that puts the range at 297.80 to 349.60, with 26 days to expiry. The expected move is estimated from the at-the-money straddle premium — the 320 call plus the 320 put — which is what options traders are paying for NATIONALUM to move in either direction before expiry.
What is the ATM straddle premium for National Aluminium Co. (NATIONALUM) today?
As of 15:40 IST on 28 Oct 2026, National Aluminium Co. (NATIONALUM) ATM straddle premium for the 23 Nov expiry is 25.90, with 26 days to expiry: the 320.00 call at 13.40 plus the 320.00 put at 12.50. One lot of the straddle costs ₹48,563. A long straddle profits only if the price moves further than the premium in either direction by expiry.
What is the ATM implied volatility of National Aluminium Co. (NATIONALUM) today?
As of 15:40 IST on 28 Oct 2026, National Aluminium Co. (NATIONALUM) ATM implied volatility for the 23 Nov expiry is 39.71% at the 320.00 strike. Implied volatility is the annualised move that option premiums are pricing in: higher IV makes options dearer to buy and pays sellers more premium.
Which National Aluminium Co. (NATIONALUM) strikes saw the biggest OI build-up or unwinding today?
As of 15:40 IST on 28 Oct 2026, National Aluminium Co. (NATIONALUM) has its biggest open-interest build-up at the 330.00 call (+7,81,875 shares) and its biggest unwinding at the 320.00 call (−3,95,625 shares) for the 23 Nov expiry. Change in open interest is measured against the previous session's close. A build-up means fresh positions are being written at that strike; unwinding means traders are closing them out.
What is the lot size of National Aluminium Co. (NATIONALUM), and what is one contract worth at today's price?
As of 15:40 IST on 28 Oct 2026, National Aluminium Co. (NATIONALUM) lot size for the 23 Nov expiry is 1,875 shares. At a spot price of 323.70, one contract is worth ₹6,06,938. Options trade only in whole lots, so premium × lot size is the rupee cost of one lot. NSE revises stock lot sizes from time to time, so confirm it before you place an order.
When do National Aluminium Co. (NATIONALUM) options expire?
Stock options on NSE have monthly expiries only — there are no weekly contracts on individual stocks. The National Aluminium Co. (NATIONALUM) expiry shown on this chain is 23 Nov 2026. Three monthly expiries trade at a time — near, next and far month — and the expiry selector above the chain switches between them. Time value decays fastest in the final days, so near-month premiums fall quickly as expiry approaches.
How are National Aluminium Co. (NATIONALUM) options settled at expiry?
Stock options on NSE are physically settled. An in-the-money National Aluminium Co. (NATIONALUM) option held to expiry becomes a delivery obligation: a long Call or a short Put means you take delivery of NATIONALUM shares and pay their full value, while a long Put or a short Call means you deliver the shares. Out-of-the-money options expire worthless. To avoid delivery, square off or roll the position before expiry.
How much margin do you need to trade National Aluminium Co. (NATIONALUM) options?
Buying a National Aluminium Co. (NATIONALUM) Call or Put needs only the premium — option price × lot size, paid upfront. Selling (writing) an option needs SPAN plus exposure margin set by the exchange, which is usually far larger than the premium because the seller's risk is open-ended. In-the-money positions also attract additional delivery margin in the last few days before expiry, because stock options settle by physical delivery.