Shapna's (Isfahan Oil Refining) market capitalization on the Tehran Stock Exchange, based on 627.2 billion shares outstanding, is estimated between 472 and 512 trillion tomans, which at Thursday morning's (July 9, 2026) free-market dollar rate of 180,195 tomans works out to roughly $2.6 to $2.8 billion. But building a refinery of the same capacity from scratch, using global oil-refining industry benchmarks, could cost $7.5 to $13.1 billion, nearly three to five times the company's current value on the Tehran Stock Exchange.
Background
"Replacement value" is a standard lens for valuing asset-heavy companies like refineries: if you had to rebuild the same production capacity today, from zero, how much would it cost? When that figure sits well above a company's stock-market value, some analysts read it as a sign the market is pricing the stock below its asset value, though this is only one valuation lens among several, not the full picture. Shapna's exact last-traded price cannot be pinned down precisely from available sources: the company registered a capital increase of about 19% from reserves on May 6, 2026 (Ordibehesht 16, 1405), raising registered capital from 526.8 to 627.2 trillion rials, a move that mechanically lowers a stock's reference price at reopening, and the stock was subsequently halted again after a jump of more than 50% and had to answer market-regulator questions before trading resumed. Available reports put the last closing price anywhere between 7,530 and 8,160 rials, so this report calculates the market-cap range across that full span rather than presenting a single, falsely precise figure. Isfahan Oil Refining has also seen sharp swings in recent days along with much of the Tehran Stock Exchange: Sahmino previously reported the stock rose 2.87% on the first trading session after Brent crude jumped above $76, but just a day later the collapse of the Iran-US ceasefire dragged the benchmark index down 52,000 points and shut the exchange until Saturday, July 11 (Tir 20). That means the market-cap range cited here reflects the last available prices before that drop, not necessarily the price at reopening.
The Numbers
| Indicator | Value | Date | Source |
|---|
| Isfahan refinery capacity | 375,000 barrels/day (three 125,000 bpd units) | Current nameplate capacity | Iran energy-industry reporting |
| Registered capital increase (from reserves) | 526.8 to 627.2 trillion rials (about 19%) | Registered May 6, 2026 (Ordibehesht 16, 1405) | Capital-market reporting |
| Shapna shares outstanding, post-increase | 627.2 billion shares | Since Ordibehesht 16, 1405 | Sahmino calculation: registered capital / 1,000-rial par value |
| Last closing price reported (sources disagree) | Between 7,530 and 8,160 rials | Before exchange closure, Tir 1405 | Capital-market reporting (inconsistent figures) |
| Shapna market-cap range | About 472 to 512 trillion tomans | Sahmino calculation from rows above | Sahmino |
| Free-market USD/IRR rate | 180,195 tomans | Thursday morning, Tir 18, 1405 | TGJU, Sahmino |
| Shapna market-cap range in USD | About $2.6 to $2.8 billion | At the rate above | Sahmino calculation |
| Global refinery construction cost benchmark | $20,000 to $35,000 per barrel/day of capacity | Industry estimate | International refining-cost analyses (incl. Thunder Said Energy) |
| Estimated replacement value of the Isfahan refinery | $7.5 to $13.1 billion | Sahmino calculation (375,000 bpd x benchmark above) | Sahmino |
| Market cap as share of replacement value | About 20% to 38% | Sahmino calculation | Sahmino |
Drivers
A few mechanisms help explain the gap between market value and replacement value. First, Iranian refiners' profits are set not by free-market product prices but by an official feedstock formula (95% of the Brent, Dubai and Oman average) and a government-set crack spread; Sahmino previously reported the summer 1405 crack spread was set around $19 a barrel, a figure that caps profitability relative to global free markets and can help explain a stock trading below the value of its physical assets. Second, decades of sanctions and the absence of foreign investment in Iran's refining sector mean there is no comparable domestic transaction to calibrate replacement value against; the global benchmark used here comes from refineries in other countries and may not precisely reflect actual construction costs in Iran. Third, this week's geopolitical risk (the ceasefire's collapse, the tanker attacks in the Strait of Hormuz, the revoked oil-export waiver) has piled an added risk discount onto asset-heavy Tehran Stock Exchange stocks, a discount that an engineering-based replacement-value estimate, independent of the stock market, does not capture.
Outlook
Replacement value alone is not a buy-or-sell signal. Shapna's real profitability depends on the government-set crack spread, the feedstock formula, the dollar rate, state pricing policy on exported products, and operational and geopolitical risk, factors that could keep the gap between market value and replacement value wide for a long time without ever translating into share-price gains. On the other hand, if the crack spread holds at current levels and geopolitical risk eases, a narrowing of that gap is one conceivable scenario, not a firm prediction. We are not saying the stock is cheap or expensive; we are simply laying two numbers side by side.
What to Watch
The Tehran Stock Exchange's reopening on Saturday, July 11, 2026 (Tir 20) will show Shapna's first fresh price after the index's 52,000-point drop. Also worth tracking: Codal's interim reports for the summer quarter, any revision to the approved crack spread, and the trajectory of tension in the Strait of Hormuz in the coming weeks.
This article is for informational and educational purposes only and is not a recommendation to buy, sell, or hold Shapna or any other stock. Replacement value is only one of several valuation metrics; base your investment decisions on a full review of official financial statements on the Codal disclosure system and consultation with a qualified professional.
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