Vomahan Cut Its Price for 5% of Taban Farda by 35%: Where the Real Value of Iran's Biggest Pending IPO Sits (Thursday, July 23, 2026)

For weeks one phrase has been repeated in the market: "the biggest IPO in the history of the capital market." It refers to the offering of 5% of Taban Farda Petrochemical Group, a holding company that is a major shareholder of Persian Gulf Holding, Sepahan Oil, and the Zagros, Marun and Kharg petrochemical companies. Sahmino reported the finalization of this offering's valuation on July 7; but since then something important has happened that changes the picture.

On July 11, 2026, while the word "record" was circulating, a filing appeared on Codal (the market's official disclosure system) that few noticed: the value of Mehr Ayandegan Financial Group's (symbol: Vomahan) purchase of 5% of Taban Farda's shares was revised, via an addendum, from 425 trillion rials to 275 trillion rials. In other words, the buyer and the seller themselves cut the value of this asset by about 35%.

This report follows exactly that gap: between the "record" narrative and the number the two sides actually agreed on. This analysis is not buy or sell advice.

What is settled today and what is not

An important methodological note: because Taban Farda has not yet been listed, searching for its ticker on Codal returns nothing and its full financial statements are not public. Every figure below is drawn either from registration notices and disclosures of related listed companies or from managers' statements; wherever something rests on a single source it is explicitly flagged.

What Taban Farda is and who owns it

"Taban Farda Petrochemical Group" (national ID 10103804104, registration number 262978, a public joint-stock company) is an investment holding, not a production unit. The ownership chain is simple and entirely state-and-fund based:

Oil Industry Employees' Pension Fund - 100% Ahdaf Investment Company - 100% Taban Farda Petrochemical Group

In the words of Mohammad Zorriyeh-Zahraei, head of analysis at Dariush portfolio management (Tejarat News), Taban Farda is "the main petrochemical and oil investment arm of the Oil Industry Pension Fund." Its board members are representatives of companies such as Saba Jam Kangan, Saba Karun, Shayestegan Ahdaf and Morvarid Pishkesvatan Pars Darkhoin, all from the Ahdaf family.

The practical meaning of this structure: what is being offered is 5% of the asset basket of the oil industry's retirees. That explains both why decision-making is slow and why a special quota is set aside for retirees of that very industry.

The portfolio: exactly what is being bought

Listed holdings (percentages vary slightly between sources and must be firmed up once the prospectus is published):

Notably, Taban Farda is the largest shareholder of Persian Gulf Holding (Ahdaf is second, with about 12%). So a buyer of this stock indirectly holds a piece of the country's biggest petrochemical holding.

Unlisted holdings (mostly 100%): Jey Oil Refining, Nakhl Asmari (Shahid Rasouli) Petrochemical, Farasco Assaluyeh, Petropalayesh Kangan, Saba Basic Oil Equipment; plus effective stakes in the National Iranian Tanker Company and the Bakhtar Group.

It is this unlisted portion that makes the valuation difficult and contested: listed assets have a daily price, unlisted ones do not.

Three numbers that must not be confused

This is the core of the analysis. Three value anchors for Taban Farda are in circulation, and each measures something different (converting 5% to 100% means multiplying by 20):

Three takeaways from this table:

1. The range is very wide. From 318 to 1,100 trillion tomans, nearly three and a half times. That spread alone is a warning: when analysts differ this much on an asset's value, the price discovered at the offering can land anywhere.

2. The 35% cut is our only real behavioral data point. Valuation reports are expert opinions; but the revision from 425 to 275 is a real transaction in which the parties move actual money. When a buyer and seller lower the value by 35% within a few months, that is the most meaningful available signal about fair value.

3. A discount to NAV is normal, but its size matters. The Vomahan anchor (550 trillion) is about half the Lotus NAV (1,100 trillion). That is consistent with the behavior of Iranian holdings; for comparison, Tapico trades at about 45% of NAV. So 550 trillion is not an unreasonable number, but it means any base price implying a total value above this eats into the margin of safety.

Testing the "biggest IPO in history" claim

The previous record belonged to the Shasta (Social Security Investment Company) offering on April 15, 2020. Ali Sahraei, then CEO of the Tehran Stock Exchange (Sena): "Shasta was priced at 860 tomans and 3,637 shares were allocated to each trading code; through this offering market value rose by 68,800 billion tomans," and "2,070,000 people took part in this offering."

Now let us compare:

Conclusion: the record claim is true in rials, but not in dollars. In tomans, the Taban Farda offering is about four times Shasta. But over this span the dollar went from about 15,000 tomans to 193,000 tomans, roughly thirteen times. When the denominator grows thirteenfold and the numerator fourfold, the real value has shrunk.

This is exactly the phenomenon seen in other markets too: the toman figure sets a record, the real value does not. The headline "biggest IPO in history" is largely a product of inflation, not of capital-market growth. The record for number of participants also still belongs to Shasta (over two million codes).

The prices circulating online are wrong

On several channels and sites, the figures 23,577 rials (first stage) and 28,266 rials (second stage) have been quoted as Taban Farda's offering price. Verification shows this attribution is incorrect: the figure 23,577 rials was in fact the per-share ceiling in the "Pariz" IPO (June 14, 2026) and appears to have been mistakenly transferred to Taban Farda.

To this moment no official base price has been published for Taban Farda. The only reliable reference is the official offering notice on the Tehran Stock Exchange site and the supervisor's message, usually published a few days before the offering. If you are not familiar with how price is discovered in an IPO, we explain book-building step by step in this lesson.

Why it keeps getting delayed

The official reasons given: Yari attributed the delay to "certain administrative processes and requirements related to a large company." The head of listings also said that in some cases "shareholders' decisions, market conditions and the country's general conditions matter," and that the exchange is "waiting for the right time."

But the timeline above tells a second story too: the 35% value revision happened in exactly the window when the offering was supposed to take place. That fits the hypothesis of "a dispute over valuation" better than mere administrative paperwork. We stress this is an inference from the sequence of events, not an official statement.

The central question: does the market have the capacity?

This is the most important practical risk. An offering of roughly 27.5 trillion tomans must be absorbed by a market that spent July 2026 like this:

Retail money outflow (billion tomans): June 28 about 7,171 / July 11 about 5,180 / July 14 about 3,275 / July 18 about 4,851 / July 19 about 2,713. On July 20, after eight negative sessions, about 3 trillion tomans of retail money entered and the index rebounded. The overall index closed on July 22 at 4,884,001 points.

Daily retail trading value: ranged from about 34.4 trillion tomans (June 22) to about 15 trillion tomans (July 18). So the Taban Farda offering alone equals roughly two full days of retail market turnover on quiet days. You can follow the up-to-date index and trading value on the Sahmino stock prices page.

And the risk-free rival: fixed-income funds yield about 39% to 39.5% annually (for example, the "Separ" fund at about 39%, "Labkhand Farabi" at about 39.5%). That figure lowers the acceptable valuation multiple for any stock: when you can earn nearly 40% risk-free, a stock must offer a higher expected return to be justified.

The 2020 lesson: the experience of the large state-led offerings and the Dara Yekom and Palayesh Yekom funds showed that such offerings drain liquidity from existing tickers, and if priced expensively, post-offering performance is weak. Note that in this case part of those "existing tickers" are Taban Farda's own subsidiaries: Fars, Shesepa, Zagros and Marun.

Industry fundamentals: three variables that make the profit

1. The gas feedstock rate. The current formula is half the average gas price at four global hubs (Henry Hub, Alberta, NBP, TTF) and half the domestic average, in a range of about 14 to 15 cents per cubic meter with a floor of 5,000 tomans. That formula was valid from 2016/17 to early 2026/27, meaning it is up for revision. There is talk of dropping the two European hubs (TTF and NBP), which could bring the rate to about 6 to 8 cents and sharply improve the whole industry's margins. This is the biggest opportunity ahead of this stock and, at the same time, its biggest uncertainty.

2. The FX repatriation rate, a point often overlooked. Petrochemical firms are dollar exporters, but they are obliged to sell export currency at the Exchange Center. That means their revenue returns at a rate of about 151,368 tomans (July 23), not the free-market rate of 193,115 tomans. That roughly 28% gap does not reach the shareholder. Any valuation model that books revenue at the free rate overstates profit.

3. Energy and war. In the 2025/26 conflicts, mostly utility units (Fajr 1 and 2, Mobin, Damavand, Razi) and about 3,600 megawatts of power capacity at Bandar Imam and Assaluyeh were damaged, not the production lines directly; about 89% to 90% of the damaged capacity has returned to service (Seyed Hamid Hosseini, spokesperson for the oil, gas and petrochemical exporters' union). Alongside this, winter gas cuts and the power imbalance still cap output, and the situation in the Strait of Hormuz weighs on exports.

Vomahan: the only listed route before the offering

Mehr Ayandegan Financial Group (symbol: Vomahan, Farabourse) is the only listed company that is directly a shareholder of Taban Farda; the buyer of that same 5% outside the IPO.

But one ratio must be seen: Vomahan's own market value was about 37 trillion tomans (June 2026), while its commitment to buy 5% of Taban Farda, even after the revision, is about 27.5 trillion tomans. That is, this purchase is very large relative to the size of the buyer. Vomahan funds part of it by selling portfolio assets and plans a capital increase from 6 to 9 trillion tomans; at its annual ordinary general meeting it also paid a dividend of 850 rials per share.

For a reader who wants exposure to this asset before the offering, Vomahan is the only route; but the right yardstick for it is price-to-net-asset-value, not profit margin, and the financing risk of this large purchase must be priced in. We opened up this point earlier in our dedicated Vomahan report.

The 2026 IPO record as a baseline for expectations

For realism, this year's offerings: Raniz (June 28, 8%, hybrid, valuation price 11,537 rials), and earlier Zorrat, Zohlal (June 17), Tadiko, Pariz (June 14, ceiling 23,577 rials), Vafiruzeh (June 10) and Rahyab (June 8). In Rahyab about 908,000 codes took part and each received about 91 shares, worth about 65,000 tomans.

The historical pattern: small offerings have typically returned 20% to 50%, but large companies usually rise only to intrinsic value and do not have "long buy queues." For a company the size of Taban Farda, expecting a fast, multi-fold return is not realistic.

How to take part

You need a trading code and registration in the Sejam system, then to place an order on the offering day through a brokerage. The likely method is "hybrid": in the first stage funds discover the price and in the second stage the public places orders at a set price. Under Article 102 of the trading rules, up to 5% of the offered shares is allocated with priority to oil-industry retirees, with the option of a 24-month interest-free installment deducted from the pension.

Risks

• Pricing risk: if the base price implies a total value above about 550 trillion tomans, the buyer pays more than the last real transaction.
• Market liquidity risk: absorbing 27.5 trillion tomans in a market with continuous retail outflow can create selling pressure on other tickers, including the company's own subsidiaries.
• Interest-rate risk: a roughly 40% risk-free yield lowers the stock's relative appeal.
• Feedstock and FX risk: a revision of the gas formula could be positive or negative; the obligation to sell FX at the Exchange Center limits rial profit.
• Energy risk: winter gas cuts and the power imbalance lower the output ceiling.
• Geopolitical risk: an escalation or disruption in the Strait of Hormuz targets exports directly.
• Information risk: the absence of public financial statements until the prospectus makes independent assessment difficult.

What to watch

• The official offering notice on the TSE site and the supervisor's message: the only reliable source for date, ticker and price.
• The prospectus and listing report: the first time full financial statements and the valuation method become public.
• The base price versus the 550-trillion anchor; the gap between them sets the margin of safety.
• A revision of the gas feedstock formula after the previous formula expires.
• The trend of retail money flows and retail trading value as a gauge of absorption capacity.
• Vomahan's behavior and how it finances this purchase.
• Upcoming events on the Sahmino calendar.

Bottom line

Taban Farda Petrochemical Group is a real and large asset: the largest shareholder of Persian Gulf Holding, holder of two-thirds of Sepahan Oil, and a major shareholder of Zagros, Marun and Kharg. There is no doubt about the quality of the portfolio.

The question is the price. And on that, the only behavioral data available is that the parties to a real transaction, on July 11, 2026, lowered the value by about 35%. That number matters more than any valuation report, because real money stands behind it.

The title "biggest IPO in history" is both true and misleading: in dollars, this company is smaller than Shasta in 2020. The record was mostly built by inflation, not by market growth.

And finally, this offering arrives at the worst possible moment for absorption capacity: retail money is leaving, and a risk-free rival yields nearly 40%. Perhaps that explains why the Tehran Stock Exchange, in the words of its head of listings, is still "waiting for the right time." This analysis is not buy or sell advice, and before any decision the official notice and prospectus must be read.