Nifty Commodities Index: Weights, Sector Breakdown and How to Trade It

What the Nifty Commodities Index Actually Tracks

The Nifty Commodities Index is a sectoral index built and published by NSE Indices Limited, the index arm of the National Stock Exchange. It is designed to measure the combined performance of companies whose core business is producing, processing or distributing commodities. That covers oil and gas, metals and mining, cement, power generation, fertilisers and chemicals. It is not a commodity price index. It does not track the price of crude oil, gold or steel directly. It tracks the share prices of listed companies in those businesses, so it reflects both the underlying commodity cycle and company-specific factors such as refining margins, debt and management execution.

The index holds 30 constituents and uses the free-float full market capitalisation method. Free float means only the shares actually available for public trading are counted, so promoter and locked-in holdings are excluded. A company with a huge market value but very low public float gets a smaller index weight than its headline size suggests. NSE Indices reconstitutes the index twice a year, using data for the six months ending in January and July, with changes typically effective at the end of March and September.

One practical point traders miss: because the index is dominated by a handful of large energy and metal names, it behaves less like a broad basket and more like a weighted bet on Reliance plus the metal pack. If you understand the top holdings, you understand most of the index's daily move. That is why the weight table below matters more than any generic description of the sector.

Real Constituent Weights: Where the Index's Risk Lives

Below is a representative snapshot of the largest constituents and their approximate index weights. Exact weights drift daily with prices and are reset at each semi-annual review, so treat these as indicative ranges rather than live figures. Always confirm the current factsheet on niftyindices.com before sizing a trade.

The single most important fact here is concentration. Reliance is by far the heaviest weight, and the top five names together usually account for roughly 40% to 45% of the entire index. So a 3% move in Reliance on a results day can swing the whole index by close to a percent on its own, regardless of what the smaller cement or fertiliser names do. If you are trading or hedging exposure to this index, you are mostly trading Reliance and the steel and mining complex.

Sector Breakdown of the Index

Grouping the 30 constituents by business gives a clearer map of what drives the index. The approximate sector split below shows why energy and metals dominate, while cement, power, fertilisers and chemicals play supporting roles.

This breakdown tells you which macro forces move the index. Crude oil and refining margins drive the energy slice. Global metal prices, China demand and the rupee drive the metals slice, since most metal majors export or price off international benchmarks. Domestic construction and infrastructure spend drive cement and power. When you read that a sectoral index rose because oil rallied, what actually happened is that the energy constituents, led by Reliance, repriced and dragged the weighted average up.

• Energy and metals together are roughly two-thirds of the index, so commodity-price news in oil and steel matters most.
• Cement and power are domestic-demand plays and often move on Budget and infrastructure announcements rather than global prices.
• A weak rupee tends to help metal exporters and hurt importers of crude, so the index can react to currency moves in opposite directions internally.

How the Index Value Is Calculated

The index uses the same free-float market-cap formula as the broader Nifty. For each constituent, NSE multiplies the current price by the free-float shares (total shares times the investable weight factor) to get its free-float market value. All 30 values are summed, divided by a base value, and multiplied by the base index level. A divisor is adjusted whenever there are corporate actions such as a stock entering or leaving the index, a rights issue or a large buyback, so that those mechanical events do not create a false jump in the index.

Two consequences flow from this. First, bigger free-float companies move the index more, which is why Reliance dominates. Second, the index can be capped at review time so no single stock or small group breaches a weight limit. If a stock runs up sharply between reviews its weight can still drift above the cap until the next reset, which is one reason the table weights above are shown as ranges rather than fixed numbers.

Can You Actually Trade This Index?

This is where most generic articles mislead readers. There is no liquid, mainstream futures or options contract directly on the Nifty Commodities Index for retail traders, unlike Nifty 50 which has deep weekly and monthly derivatives, or Bank Nifty which has deep monthly derivatives. So you cannot simply buy a Nifty Commodities call option the way you would a Nifty option. In practice, traders express a view on this theme in three ways.

• Constituent stock F&O: trade futures and options on the heavyweight members directly, for example Reliance, Tata Steel, Hindalco or Coal India, each of which has its own NSE derivatives with fixed lot sizes.
• Sectoral or thematic ETFs and index funds: buy units that track a commodities or metals basket on the cash market, settled like any equity.
• A self-built basket: buy the top constituents in roughly their index weights to mimic the index in your cash portfolio, accepting tracking error and higher cost.

Because the index is so Reliance-heavy, many traders who want a quick proxy simply trade Reliance options, since Reliance alone explains a large part of the index's daily direction. The worked example below uses exactly that approach so the numbers are real and checkable.

Worked Example: A Reliance Call as an Index Proxy

Suppose it is a Wednesday and you are bullish on the energy and commodities theme ahead of an expected rise in refining margins. Rather than hunt for an index contract that does not trade, you buy a Reliance monthly call option, since Reliance is the single biggest weight in the Nifty Commodities Index. The figures here are illustrative and chosen to show the full money flow including costs and tax.

• Instrument: Reliance Industries monthly call option (cash-settled style P&L shown for clarity).
• Spot price of Reliance: Rs 1,400. You buy the 1,420 strike call.
• Lot size: 500 shares per lot (Reliance F&O lot; always confirm the current lot on the NSE contract page, as lots are revised).
• Premium paid: Rs 25 per share. You buy 1 lot.
• Premium outlay: Rs 25 x 500 = Rs 12,500 (this is your maximum loss if the option expires worthless).

Now assume Reliance rallies and at expiry the stock closes at Rs 1,480. Your 1,420 call is in the money by Rs 60 per share (1,480 minus 1,420). The premium you receive on closing is Rs 60 per share.

• Gross profit before costs: (Rs 60 received minus Rs 25 paid) x 500 = Rs 35 x 500 = Rs 17,500.
• STT on options is charged at 0.15% of the premium on the sell side. Selling premium value = Rs 60 x 500 = Rs 30,000, so STT is about Rs 45. If the option is exercised at expiry, STT on the intrinsic value of exercised options is 0.15%, which would be around Rs 45, so budget a few rupees either way.
• Brokerage on a typical discount broker is Rs 20 per executed order, so roughly Rs 40 for buy plus sell.
• Exchange transaction charges, SEBI fees, GST on brokerage and stamp duty add a small amount, realistically Rs 30 to Rs 60 in total for a single lot of this size.
• Net profit after costs: roughly Rs 17,500 minus about Rs 130 to Rs 150 in costs, leaving close to Rs 17,350 illustrative.

The same trade can lose money just as fast. If Reliance instead drifts down and the 1,420 call expires below the strike, the option is worthless and you lose the full premium, Rs 12,500 plus the small entry costs. That asymmetry, limited and known loss for an uncertain gain, is the core trade-off of buying options. Leverage cuts both ways and the time value in the premium decays every day you hold.

Tax: The Numbers Most Articles Get Wrong

This is the part the old version of this page had incorrect, so read it carefully. The rates below reflect the changes announced in the July 2024 Union Budget, which raised both equity capital-gains rates. The treatment depends entirely on which instrument you used, not on the index itself.

So the Reliance options trade above is not taxed as capital gains at all. F&O profit is non-speculative business income. You add the net profit to your total income and pay tax at your applicable slab, and you can set off F&O losses against other business income and carry them forward for up to eight years if you file your return on time. By contrast, if you had bought a commodities ETF in the cash market and sold within a year, that gain would be STCG at 20%, and after a year it would be LTCG at 12.5% on the part above the Rs 1.25 lakh annual exemption.

• Do not apply the old 15% STCG or 10% LTCG numbers. They were replaced in Budget 2024.
• STT is separate from income tax. It is deducted at the time of trade and cannot be claimed as a rebate against tax, though for business-income F&O traders it is a deductible business expense.
• F&O traders may need a tax audit depending on turnover. Keep clean records of every contract note for accurate filing.

What Moves the Index Day to Day

Because of its composition, the index responds to a specific set of drivers. Global crude oil prices hit the energy block. A spike in crude can squeeze refining margins for downstream refiners while helping upstream producers like ONGC, so the net effect inside the index is not always one direction. International metal prices and Chinese demand drive the steel and aluminium names. The rupee matters because metal majors price off dollar benchmarks, so a weaker rupee can lift their reported earnings.

On top of macro forces, single-stock events can swing the index disproportionately. Reliance results, an Adani group news flow, or a large block deal in Coal India can each move the index more than a broad commodity headline, simply because of weight concentration. This is why following the index without watching its top five constituents is a mistake.

Risk Management for This Concentrated Index

A sectoral index is by definition less diversified than the Nifty 50, and this one is further concentrated in a few mega-caps. Standard discipline applies, but with extra attention to single-stock and commodity-cycle risk. Size positions so that one event, such as a Reliance result or a crude shock, cannot wreck your account.

• Position sizing: risk only a small fixed percentage of capital per trade, so a full premium loss on an options bet is survivable.
• Stop discipline: in cash equity or ETF trades, predefine an exit level; in bought options, accept that the premium itself is your built-in maximum loss.
• Event awareness: check the constituent earnings calendar and any major commodity data release before holding overnight.
• Avoid over-leverage: F&O gives leverage, and on a concentrated theme that leverage amplifies a single bad commodity print.

The Role of SEBI and the Exchange

The Securities and Exchange Board of India (SEBI) regulates the listed companies, the exchange and the brokers, with the goal of investor protection and fair, transparent markets. NSE Indices governs the index methodology, including eligibility, the free-float calculation, weight caps and the semi-annual review. Constituents must meet listing, disclosure and liquidity standards, and SEBI oversight covers surveillance against manipulation and insider trading. For a trader, this framework is what makes the published index level trustworthy as a benchmark.

Sources and Further Reading

For authoritative data on weights, methodology and contract specifications, refer to NSE Indices (Nifty Indices), NSE India and Zerodha Varsity. For tax, rely on the Income Tax Department or a qualified chartered accountant. Always confirm current weights, lot sizes, STT rates and tax slabs on the official source before you trade.

Sources and Further Reading

For authoritative data and further reading on this topic, refer to NSE Indices (Nifty Indices), NSE India and Zerodha Varsity. Always confirm current rules, rates and contract specifications on the official source before you trade.