NATIONALUM National Aluminium Co. Ltd. — Smart-Money Activity, F&O Buildup & Bulk Deals
Sector: Metals & Mining · F&O lot size: 1,875NATIONALUM lot size: 1,875 shares per F&O lot for the 3 listed expiries (2026-10-27, 2026-11-23, 2026-12-29). One lot is worth about ₹5.96 lakh at the last underlying price of ₹318.00. All F&O lot sizes →
NATIONALUM Chart daily candles · add any indicator · computed in your browser
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Daily bars from exchange end-of-day data; during market hours today’s bar updates with the latest price. Splits and bonuses are adjusted; demergers show as the real gaps they were. Volume profile is estimated from each day’s range. D marks a bulk or block deal day (green: net buying, red: net selling, purple: matched cross). Charting by TradingView Lightweight Charts.
NATIONALUM Seasonality month by month since 1999 · adjusted month-end closes
NATIONALUM in October: closed the month higher in 14 of 27 years (1999–2025), with a median move of +0.6% and an average of +0.6%.
Years the month closed higher / years with data, and the median monthly move. Past patterns, not a forecast: most months are close to a coin toss.
Smart Money Verdict synthesis of derivatives, deals, and promoter files
Analysis what the data is telling us about NATIONALUM
In the last completed session, National Aluminium Co. Ltd. closed -1.79% with futures open interest moving +2.2%. That combination — price falling while OI builds — is classified as Short Buildup. Fresh short positions are being added on weakness, which historically prefaces further downside until shorts are forced to cover. The option PCR of 0.72 is balanced — no clear directional preference from option writers. Max-pain strike at ₹330 sits 3.8% above the current price, a mild magnet near expiry.
There have been no notable bulk or block deals from FIIs, mutual funds, or insurance companies in National Aluminium Co. Ltd. over the last 30 sessions.
Putting it together, the smart-money picture for National Aluminium Co. Ltd. points to a softer setup at the next open.
F&O Positioning EOD derivatives setup
Quote Details key metrics & weights
Technical Snapshot as of 2026-10-19 close · from 400 sessions of price history
Key Fundamentals headline ratios · Basic Materials
Fundamental ratios sourced from public market data, refreshed periodically; verify against company filings before relying on them.
Institutional Deals last 30 sessions (bulk & block)
Insider & Promoter Filings last 60 days
NATIONALUM Option Chain nearest expiry 2026-10-27 · spot 318 · EOD 2026-10-19
NATIONALUM option chain today (2026-10-27 expiry, NSE data of 2026-10-19): put-call ratio 0.72 · max pain ₹330 · highest call OI at ₹350 · highest put OI at ₹330 · underlying ₹318.00. One lot is 1,875 shares. At-the-money implied volatility 32.7%, IV rank 31 and IV percentile 32 over the past year (range 24.0%–51.9%); 20-day historical volatility 32.0%.
| Call OI (writers) | Strike | Put OI (writers) |
|---|---|---|
|
IV 46%
Δ 0.99
θ -0.1
ν 0
|
270 |
IV 46%
Δ -0.01
θ -0.0
ν 0
|
|
IV 65%
Δ 0.94
θ -0.3
ν 0
|
275 |
IV 65%
Δ -0.06
θ -0.2
ν 0
|
|
IV 45%
Δ 0.98
θ -0.1
ν 0
|
280 |
IV 45%
Δ -0.02
θ -0.1
ν 0
|
|
IV 44%
Δ 0.96
θ -0.2
ν 0
|
285 |
IV 44%
Δ -0.04
θ -0.1
ν 0
|
|
IV 40%
Δ 0.94
θ -0.2
ν 0
|
290 |
IV 40%
Δ -0.06
θ -0.1
ν 0
|
|
IV 39%
Δ 0.91
θ -0.2
ν 0
|
295 |
IV 39%
Δ -0.09
θ -0.2
ν 0
|
|
IV 37%
Δ 0.87
θ -0.3
ν 0
|
300 |
IV 37%
Δ -0.13
θ -0.2
ν 0
|
|
IV 35%
Δ 0.80
θ -0.3
ν 0
|
305 |
IV 35%
Δ -0.20
θ -0.3
ν 0
|
|
IV 35%
Δ 0.71
θ -0.4
ν 0
|
310 |
IV 35%
Δ -0.29
θ -0.3
ν 0
|
|
IV 33%
Δ 0.59
θ -0.4
ν 0
|
315 |
IV 33%
Δ -0.41
θ -0.3
ν 0
|
|
IV 33%
Δ 0.47
θ -0.4
ν 0
|
320 |
IV 33%
Δ -0.53
θ -0.3
ν 0
|
|
IV 33%
Δ 0.34
θ -0.4
ν 0
|
325 |
IV 33%
Δ -0.66
θ -0.3
ν 0
|
|
IV 33%
Δ 0.23
θ -0.3
ν 0
|
330 S MP |
IV 33%
Δ -0.77
θ -0.2
ν 0
|
|
IV 34%
Δ 0.16
θ -0.3
ν 0
|
335 |
IV 34%
Δ -0.84
θ -0.2
ν 0
|
|
IV 36%
Δ 0.11
θ -0.2
ν 0
|
340 |
IV 36%
Δ -0.89
θ -0.1
ν 0
|
|
IV 37%
Δ 0.08
θ -0.2
ν 0
|
345 |
IV 37%
Δ -0.92
θ -0.1
ν 0
|
|
IV 41%
Δ 0.06
θ -0.1
ν 0
|
350 R |
IV 41%
Δ -0.94
θ -0.1
ν 0
|
|
IV 42%
Δ 0.04
θ -0.1
ν 0
|
355 |
IV 42%
Δ -0.96
θ -0.1
ν 0
|
|
IV 45%
Δ 0.04
θ -0.1
ν 0
|
360 |
IV 45%
Δ -0.96
θ -0.0
ν 0
|
|
IV 46%
Δ 0.02
θ -0.1
ν 0
|
365 |
IV 46%
Δ -0.98
θ -0.0
ν 0
|
|
IV 48%
Δ 0.02
θ -0.1
ν 0
|
370 |
IV 48%
Δ -0.98
θ +0.0
ν 0
|
Chain Interpretation
Strategy Builder multi-leg payoff for NATIONALUM options · 2026-10-27 expiry
Legs
Payoff at expiry
Latest News recent coverage from Reuters, Simply Wall St, MT Newswires and others
NATIONALUM — frequently asked questions
What is the National Aluminium Co. Ltd. share price today?
NATIONALUM is trading at ₹318.00 (-1.93% vs previous close), per the latest update on this page.
What is the P/E ratio of National Aluminium Co. Ltd.?
NATIONALUM (National Aluminium Co. Ltd.) has a trailing twelve-month P/E ratio of 8.7.
What is the market cap of National Aluminium Co. Ltd.?
NATIONALUM has a market capitalisation of approximately ₹58,405 crore.
Is NATIONALUM near its 52-week high?
NATIONALUM is trading -28.6% from its 52-week high of ₹445.15 as of 2026-10-19.
What is the RSI of NATIONALUM?
The 14-day RSI of NATIONALUM is 36.8, which is considered neutral.
Is NATIONALUM above its 200-day moving average?
NATIONALUM is trading below its 200-DMA of ₹374.55 (-15.1% away).
What is the F&O buildup in NATIONALUM?
The latest end-of-day derivatives data classifies NATIONALUM as Short Buildup (bias: bearish), based on the day's combined price and open-interest change.
What is the max pain and PCR for NATIONALUM options?
NATIONALUM's option-chain max pain strike is ₹330 and its put-call ratio (OI) is 0.72, from the latest end-of-day option chain.
Are FIIs or big investors buying NATIONALUM?
Strota tracks every bulk and block deal in NATIONALUM with named buyers and sellers, plus promoter and insider filings — the tables on this page list the most recent institutional activity as disclosed to the exchanges.