IEX Q2 FY27 Results: Profit Up 13%, Market Coupling Pushed Out, IGX IPO Next. What It Means for Investors

Indian Energy Exchange (IEX) has just reported its best quarter in a year. Profit rose 13%, record power demand pushed electricity volumes up 12.7%, and its gas exchange more than doubled its earnings. The share price, though, is still near ₹105, about 38% below where it traded before the power regulator's market-coupling order in July 2025. This post covers the quarter, where market coupling stands, the IGX IPO that is now close, and what all of it means if you own IEX or hold Indian Gas Exchange (IGX) unlisted shares.

IEX in 30 seconds

• What it is: India's largest power exchange. Generators, distribution companies (discoms), open-access industrial buyers and traders buy and sell electricity on it in auctions that run from 15-minute blocks to months ahead.
• How it earns: a transaction fee of about 2 paise per unit (kWh) from each side of a trade. Q2 revenue from operations of ₹167 crore on 39.7 billion units works out to roughly 4.2 paise per unit traded.
• Why the business is so profitable: an exchange's costs barely change as volume grows. IEX's entire expense bill for the quarter was ₹32.6 crore against ₹203 crore of total income.
• What it owns besides the power exchange: 47.3% of Indian Gas Exchange (IGX), India's gas exchange; ICX, which issues international renewable energy certificates; and Indian Coal Exchange, a new subsidiary that has applied for a coal-exchange licence.
• Size: at ₹105.35 (October 29 close on NSE) IEX has about 89 crore shares and a market cap of about ₹9,394 crore.

Q2 FY27 results at a glance

First half (April to September 2026): consolidated profit was ₹274 crore, up 12.3%, on electricity volume of 77.2 billion units, up 14.2%. Standalone profit, which leaves out IGX and the other subsidiaries, was ₹132.8 crore for the quarter (+9.2%) and ₹259.5 crore for the half (+10.6%).

Three things stand out:

1. Profit grew faster than revenue. Core revenue rose 8.6%, but other income (mostly interest on IEX's roughly ₹1,200 crore of cash) rose about 22% and IGX's contribution more than doubled.
2. Costs grew faster too. Expenses rose 22%, led by a 42% jump in other expenses as IEX spends on new markets and technology. On a ₹32.6 crore base this barely dents margins, but it is worth watching.
3. Quality is good. There is no one-off gain here. This is a fee business riding a record-demand quarter.

Segment by segment: where the volume came from

RTM is now IEX's biggest market. Real-time trading, in half-hourly auctions held through the day, overtook the day-ahead auction this quarter, and it set a single-day record of 315 million units on September 26. This matters for the coupling debate below, because coupling is planned for DAM first. RTM will follow much later, if at all.

DAM barely grew, and that was a supply problem, not a demand problem. In September, buy bids in the day-ahead market were up 281% on last year, but there was not enough power on offer to match them. When sellers are scarce, cleared volume is capped by supply and the extra demand shows up as higher prices instead.

TAM doubled. With prices this volatile, buyers locked in power for days and weeks ahead rather than waiting for the daily auction.

REC was the weak spot. Certificate trading fell about two-thirds. It is a small part of revenue, but it is the main reason brokerages trimmed their earnings estimates after the results.

Why power prices spiked

• Record demand. India used 502 billion units of electricity in July to September, up 11.5% and the highest ever for the quarter. Demand for the first half was 897 billion units, up 10.2%. Peak demand touched 269 GW on September 10.
• El Niño and a weak monsoon. Less rain meant more pumping for irrigation, more air-conditioning and less hydro power.
• Thin coal stocks. Domestic coal output in the first half was about 1% lower than last year. By October 22, power plants held about 8 days of coal on average, and around 100 plants had only about 3 days.

High prices cut both ways for IEX. Volume grows when discoms rush to the exchange to cover shortfalls, which is good. But very high prices can also mean buyers who simply cannot get power, which caps volume. IEX earns per unit, not per rupee, so a higher price on its own does not raise revenue.

Market coupling: where it stands now

This is the single biggest question over IEX, and the reason the stock trades where it does.

What it means. India has three power exchanges: IEX, PXIL and HPX. Today each runs its own day-ahead auction and finds its own price. Because IEX has the most buyers and sellers by far, it gets the best prices, so almost everyone trades there. That liquidity is IEX's moat. Under market coupling, every exchange would pass its bids to a central Market Coupling Operator, which would run one combined auction and set one national price. Each exchange would become a collector of orders, and a buyer would get the same price wherever they placed the bid. Exchanges would then compete mainly on fees and service, not liquidity.

The timeline so far:

1. July 23, 2025: the Central Electricity Regulatory Commission (CERC) ordered day-ahead coupling, to be run by the exchanges in rotation, targeting January 2026. IEX shares fell from about ₹169 to about ₹132 in a day.
2. October 2025: SEBI found that some traders had bet against IEX shares using advance knowledge of the order. It barred eight entities, including people linked to the leak at the regulator, and impounded about ₹173 crore. The case was about the traders, not IEX the company.
3. February 2026: the Appellate Tribunal for Electricity (APTEL) dismissed IEX's challenge as premature. The stock fell about 5%.
4. April 2026: CERC published draft regulations naming Grid India as the Market Coupling Operator. The draft lets CERC couple DAM, RTM and other markets on separate dates. A public hearing followed on June 10.
5. August 2026: the Supreme Court declined to step in. It held that coupling can only be brought in through regulations, not through the 2025 order alone, so the challenge was premature. IEX can object once the final regulations are notified.
6. October 2026: the final regulations are still not notified. IEX management said coupling is "definitely not likely this calendar year" and estimated another 1.5 to 2 years, given the software, settlement and mock trials needed across three exchanges and the grid operator.

What coupling would and would not change. Here is our reading:

• It covers less than it sounds. The first phase is DAM only, which was about 37% of IEX's electricity volume this quarter. RTM, now the largest segment, is to be coupled only after experience with DAM. A proposal to cut RTM's gate closure (the gap between bidding and delivery) to 50 minutes would make coupling RTM even harder. TAM, green markets, RECs, gas, carbon and coal are outside its scope.
• Market share is the real risk, not the price. Coupling does not stop anyone using IEX. The risk is that once the liquidity advantage is gone, some participants move to whichever exchange is cheapest or offers incentives. IEX's fee per unit could come under pressure.
• IEX keeps its strengths. It has relationships with thousands of participants, the best trading technology, and an established brand. It also earns from many markets coupling does not touch. In Europe, where power markets have long been coupled, the incumbent exchanges kept most of their volume.
• Time is on IEX's side for now. Every year without coupling is another year of high-margin cash flow. At about ₹550 crore of annual profit, that is real money.

The IGX IPO: the next catalyst

Indian Gas Exchange is where IEX's news meets the unlisted market. Key points:

• Stage: IGX filed its draft offer document in July 2026 and received SEBI's go-ahead on October 12. It now needs to set a price band and dates. Shares are to list on both NSE and BSE.
• Structure: a pure offer for sale (OFS) of up to 1.67 crore shares, all sold by IEX. IGX itself raises no new money; the IPO exists so IEX can sell down.
• Deadline: the gas regulator, PNGRB, caps any single shareholder in a gas exchange at 25% and has given IEX until December 31, 2026 to cut its 47.3% stake. Selling 1.67 crore of its roughly 3.5 crore shares takes IEX to just under 25%. That deadline is why we expect the IPO in November or December, though no dates have been announced.
• Business momentum: IGX traded 42 million MMBtu of gas in Q2, up 160%, helped by domestic producers and gas-fired power plants running harder in a tight power market. Half-year volume was 69.5 million MMBtu (+71%). Profit was ₹23.4 crore in Q2 (+144%) and ₹39.7 crore for the half (+67%).
• Shareholders: besides IEX, IGX is owned by NSE (about 26%) and strategic investors including GAIL, ONGC, Adani Total Gas, Torrent Gas and Indian Oil (about 5% each).

Valuation, our maths. IGX has about 7.39 crore shares.

Earlier this year, the IPO was expected to raise ₹600 to 700 crore, which works back to roughly ₹360 to ₹420 a share. IGX's profit has grown sharply since then, and on the Q2 run-rate alone (about ₹94 crore a year) ₹475 is about 37 times earnings. So the final IPO price could land above that early range. But today's unlisted price already assumes a fairly full valuation.

What it means for IEX shareholders

Sum of the parts at ₹105:

• IEX market cap: about ₹9,394 crore.
• Cash and investments: about ₹1,200 crore.
• 47.3% of IGX at ₹475: about ₹1,660 crore.
• Cash plus the IGX stake is about 30% of IEX's market cap. The core power exchange, which made over ₹500 crore of annualised profit this half, is valued at about ₹6,500 crore.

On annualised first-half profit (₹548 crore), IEX trades at about 17 times earnings. Before the coupling order it traded at over 30 times. The market is pricing in a large loss of share under coupling.

Two things could move the stock before coupling does:

1. A buyback. Management said it will "definitely consider" one, given the low share price. Add the IGX sale proceeds (₹600 to 800 crore before tax, depending on price) to existing cash, and IEX could hold roughly ₹1,800 to 2,000 crore, about a fifth of its market cap. A buyback at these levels would directly reward shareholders who stay.
2. The IGX listing itself. A listed IGX gives a daily market price for the 25% stake IEX keeps, which makes the sum of the parts visible.

The long view. Management expects India's power demand to grow about 1.5 times by 2032, driven by electrification, data centres, electric vehicles and air-conditioning. Exchanges still handle less than 10% of India's power. IEX is also preparing new markets: battery storage arbitrage, firm and dispatchable renewable power, virtual PPAs, contracts for difference, capacity, ancillary services and carbon. None of these will move profit next quarter, but they widen what IEX can earn from if DAM fees come under pressure.

Our take: at around 17 times earnings, with about 30% of the market cap in cash and IGX and a possible buyback, the share price already assumes a lot of damage from coupling, which is still 1.5 to 2 years away. If you hold IEX, the case for holding rests on that timing and on RTM and the new markets growing. The risk is that the final regulations are tougher than expected, or come sooner. Brokerages are cautious: at least one cut its target to ₹112 with a Hold rating after the results, only a little above the current price.

What it means for IGX unlisted shareholders

If you already hold IGX unlisted:

• The exit is close. SEBI's approval plus the December 31 deadline make an IPO in the next few weeks very likely.
• Lock-in applies. Pre-IPO shares held by non-promoters are generally locked in for six months after listing. You won't be able to sell on listing day. Our guide to lock-in rules for pre-IPO buyers explains how this works.
• The IPO price is the reference point. If IGX prices below your purchase price, you start underwater and must wait out the lock-in. If it prices above, you have a cushion.

If you are thinking of buying now:

• At ₹475, one lot of 250 shares costs about ₹1.19 lakh.
• You are paying about 44 times annualised first-half profit, at the top of our implied IPO range. If the IPO prices nearer ₹400, an unlisted buyer at ₹475 would start about 16% down, and still be locked in.
• The alternative: apply in the IPO itself, where there is no lock-in and the price is set by the book. Or buy IEX, which gives you about 25% of IGX plus a growing power exchange at 17 times earnings.
• Real risks to IGX: much of India's gas is still sold outside the exchange under price caps and priority allocation. Gas is still outside GST, which makes exchange trading less efficient. LNG import prices swing with events in West Asia: in February 2026, volume fell 36% when spot prices spiked. This quarter's 160% growth came in a tight power market and may not repeat.

What to watch next

1. IGX price band and dates. Expected in November or December, before the December 31 deadline.
2. A buyback announcement from IEX.
3. CERC's final market-coupling regulations, and whether IEX challenges them once notified.
4. Monthly volume updates. IEX publishes them in the first week of each month. Prices usually ease in winter, so watch whether volume holds up as prices cool.
5. The coal-exchange licence for Indian Coal Exchange.
6. REC trading sessions, to see if certificate volume recovers.

The bottom line

IEX's business is in good shape: record demand, RTM now its biggest market, a gas exchange that has doubled its profit, and over ₹1,200 crore of cash. Market coupling is real but slow. Management now says it is 1.5 to 2 years away, and its first phase covers only a little over a third of today's volume. The stock already prices in a lot of that risk. The nearest event is the IGX IPO, which will turn IEX's stake into cash and give a market price for what remains. For IGX unlisted holders, it is the exit they have been waiting for. For new buyers at ₹475, the margin of safety is thin.

For a deeper look at the coupling timeline, the draft rules and our profit scenarios, read IEX market coupling delayed: what it means for the stock.

Live unlisted price, lot size and company details are on the Indian Gas Exchange share page.

Disclaimer: This article is for information and education only and is not investment advice. Results and volume figures are from IEX's Q2 FY27 disclosures (October 29–30, 2026). IEX's share price is the NSE close on October 29, 2026. The IGX price is ShareSaathi's indicative unlisted quote as of October 31, 2026. Valuations, sum-of-the-parts figures, implied IPO prices and annualised earnings are ShareSaathi's own calculations and may differ from the final IPO terms. Unlisted shares are illiquid, prices are indicative, and an IPO is never guaranteed until it opens. Please consult a SEBI-registered investment adviser before investing.