National Aluminium Company Limited

NSE: NATIONALUMMetals & MiningLot size: 1875

National Aluminium Company Limited Option Chain Analysis

2026-11-232026-12-292027-01-25
Total CE OI
1.10 Cr
Total PE OI
98.7 L
PCR
0.90Neutral
CE OIChgVolIVLTPStrikeLTPIVVolChgPE OI
00——%₹—250₹——%—+23K1.6 L
00——%₹—255₹——%—02K
71K0——%₹—260₹——%—-4K2.0 L
00——%₹—265₹——%—+68K77K
00——%₹—270₹——%—+8K1.2 L
15K0——%₹—275₹——%—+1.5 L1.8 L
21K0——%₹—280₹——%—+13K3.6 L
28K0——%₹—285₹——%—+4K83K
2.4 L+2K——%₹—290₹——%—-60K3.5 L
1.1 L0——%₹—295₹——%—+36K1.5 L
7.7 L-30K——%₹—300₹——%—-99K11.4 L
2.5 L+15K——%₹—305₹——%—+75K4.6 L
9.9 L-43K——%₹—310₹——%—+1.1 L12.7 L
3.9 L-11K——%₹—315₹——%—+1.7 L6.6 L
12.1 L-4.1 L——%₹—320₹——%—+1.6 L10.1 L
3.7 L+1.1 L——%₹—325₹——%—+68K1.4 L
17.5 L+7.9 L——%₹—330₹——%—+1.1 L4.4 L
3.4 L+1.2 L——%₹—335₹——%—+36K53K
6.2 L+2.4 L——%₹—340₹——%—+26K3.2 L
1.5 L+92K——%₹—345₹——%—02K
12.4 L+2.5 L——%₹—350ATM₹——%—-4K12.3 L
1.6 L+1.6 L——%₹—355₹——%—00
3.9 L+1.4 L——%₹—360₹——%—-4K1.8 L
2.0 L+1.5 L——%₹—365₹——%—06K
3.1 L+47K——%₹—370₹——%—+4K1.5 L
36K+34K——%₹—375₹——%—00
5.0 L+1.4 L——%₹—380₹——%—+2K5.2 L
3.2 L+15K——%₹—390₹——%—06.1 L
4.7 L+49K——%₹—400₹——%———

Bold CE OI = highest call writing (resistance). Bold PE OI = highest put writing (support). ATM = at-the-money.

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Key Strike Levels

The open interest clusters prominently around the 340, 350 and 330 Call strikes, together with the 315, 320 and 275 Put strikes, indicating a clear concentration of market participants. This pattern strongly suggests a market‑defined range roughly between ₹315 and ₹350 for the November expiry, giving a tangible boundary for price expectations. The concentration of 150 contracts each at the 340 Call and 315 Put acts as a robust near‑term resistance and support respectively, anchoring the implied price corridor.

OI Buildup Activity

New Call open interest adds aggressively 330 (+7,81,875), 350 (+2,73,750) and 340 (+2,38,125) contracts, indicating pronounced positioning by option writers at higher strikes. On the Put side, fresh additions appear decisively at 315 (+1,66,875), 320 (+1,55,625) and 275 (+1,46,250), reflecting a defensive bias to protect downside risk. The net inflow of fresh OI across both sides points clearly to a tightening of the implied payoff curve as expiry approaches, tightening the risk‑reward profile.

Volatility Read

The at‑the‑money implied volatility stands at 30.49 %, consistent with typical equity‑index levels for a mid‑cap commodity exposure and signalling moderate price dispersion. The volatility skew is neutral, implying balanced pricing between out‑of‑the‑money Calls and Puts, with no pronounced premium on either side.

Key OI Levels

The highest Call open interest of 150 contracts resides at the 340 strike, while the highest Put open interest of 150 contracts is located at the 315 strike.

Frequently Asked Questions

What is the highest call OI strike for National Aluminium Company Limited today?
The strike with highest call (CE) open interest for National Aluminium Company Limited is ₹330 for the 2026-11-23 expiry. This acts as a key resistance level since call writers will defend this strike aggressively near expiry.
What is the highest put OI strike for National Aluminium Company Limited today?
The strike with highest put (PE) open interest for National Aluminium Company Limited is ₹310 for the 2026-11-23 expiry. This acts as a key support level — put writers will tend to defend this level near expiry.
What does OI buildup in National Aluminium Company Limited options mean?
Open Interest (OI) buildup in National Aluminium Company Limited options shows how many net new contracts are being created at each strike. Rising OI at a strike means fresh positions (writers or buyers). Rising OI with rising price = long buildup (bullish); rising OI with falling price = short buildup (bearish).
When does National Aluminium Company Limited options expire?
National Aluminium Company Limited options have their nearest expiry on 2026-11-23. NSE F&O stocks have monthly expiry contracts — typically the last Tuesday of each month. MarketNetra shows data for the nearest two expiries.
How to read National Aluminium Company Limited option chain?
The National Aluminium Company Limited option chain shows calls (CE) on the left and puts (PE) on the right for each strike price. Key columns: OI (total open contracts), OI Change (new positions today), Volume (today's trades), IV (implied volatility — higher = more uncertainty), and LTP (last traded price). The ATM (at-the-money) strike is highlighted in blue.