What you will learn in this lesson
A gold fund is the simplest way to own gold without storing it, but simple does not mean transparent. By the end of this lesson you will know exactly what a gold fund buys, why its unit carries a price on the exchange board that is separate from the real value of its holdings, which costs quietly reduce your return, and above all: under what conditions the board price pulls away from NAV, and what that gap means for you. This is an intermediate lesson and assumes you know what an investment fund is; if you do not, start with What Is an Investment Fund.
Definitions
A gold fund (صندوق طلا) is an exchange traded commodity investment fund. It pools investors' money and, rather than putting coins and bullion in a vault, buys paper assets backed by gold. Its units trade like any symbol on the capital market.
A commodity deposit certificate (گواهی سپرده کالایی) is a document representing ownership of a specific quantity of gold coin or bullion deposited in an approved treasury, and it trades on the Iran Mercantile Exchange. A gold fund is, in practice, a buyer of these certificates.
NAV, or net asset value (ارزش خالص دارایی), is the current value of all the fund's assets minus its liabilities, divided by the number of units. This number is the real value of one unit.
Redemption NAV (NAV ابطال) is what an investor receives if units are redeemed, and issuance NAV (NAV صدور) is the cost of creating a new unit, which sits slightly above the redemption figure because of the cost of buying assets. Premium calculations normally use the redemption NAV.
The board price (قیمت تابلو) is the price a buyer and seller have just agreed on, that is, the fund unit's last executed trade.
A market maker (بازارگردان) is an institution obliged to post orders on both the buy and sell side simultaneously, so the board price does not drift far from NAV.
The fund premium (حباب صندوق) is the percentage gap between the board price and NAV. When positive, the market is paying more for the unit than its assets are worth; when negative, less.
The mechanism: the route from your money to a gold bar
When you buy a unit of a gold fund, you are not buying gold; you are buying a share of a basket. The money travels through four links:
- You buy the fund unit on the capital market from another seller (or from the market maker).
- The fund manager, on their side, buys the underlying asset on the Iran Mercantile Exchange: mainly gold coin deposit certificates and gold bullion deposit certificates.
- The current value of that basket, minus liabilities and expenses and divided by the number of units, produces the NAV per unit.
- Whenever you want out, you sell the unit on the same board rather than taking physical delivery of coins from the fund.
The asset mix of Iranian gold funds is not discretionary; Securities and Exchange Organization rules set thresholds for it. Under those thresholds at least 70 percent of a fund's assets must be invested in gold coin and gold bullion deposit certificates, at most 20 percent in gold based securities (such as futures and options contracts), a small share (up to roughly 5 percent) may go to silver deposit certificates, and the remainder is held in fixed income securities and bank deposits so the fund has the liquidity to pay sellers. Each fund's exact mix is written into its prospectus (امیدنامه) and differs from the next one; that difference is why two gold funds do not post identical returns on the same day.
Fees: what is subtracted from your return
A gold fund's cost has two layers, and you only see one of them.
Layer one, the trading commission. This is the amount deducted from your account when you buy and sell units. Based on the rates prevailing in Mordad 1405 (July and August 2026), the trading commission on gold fund units is roughly 0.125 percent of the trade value per side, meaning a full round trip of about 0.25 percent. Trades in these funds are also exempt from transfer tax, which is one of the sharper differences from buying jewellery gold.
Layer two, the fund's annual expenses. The fees of the manager, market maker, trustee and auditor, plus operating costs, are taken from the fund's own assets, not from your account. That is why you never see an invoice for them: these costs are already reflected in NAV, and they show up as a return slightly below that of the underlying asset. The exact rates appear in each fund's prospectus and vary between funds; read that section before choosing a fund.
A worked example
Every number below is hypothetical and serves only to show the method.
Suppose the redemption NAV of a gold fund unit is 20,000 tomans, and at that same moment its board price is 20,900 tomans. You calculate the fund premium like this:
Premium = (board price minus NAV) divided by NAV, multiplied by 100
Premium = (20,900 minus 20,000) divided by 20,000, multiplied by 100 = 4.5 percent
In other words, for each unit you are paying 4.5 percent more than the gold behind it is worth. Now suppose you buy 100 million tomans of these units and sell six months later. The round trip commission at the rate above comes to about 250,000 tomans. If the gold price is unchanged between your purchase and your sale but the fund premium falls from 4.5 percent to zero, roughly 4.5 million tomans of your capital is gone: the premium is far more expensive than the commission. This simple exercise is why the moment of entry matters.
When do NAV and the board price drift apart?
Normally the market maker keeps the two numbers close together. The gap opens when one of these four things happens:
- A one sided rush of demand. On turbulent days in gold and currency, the buy queue grows heavy and the market maker's liquidity is not enough to fill every order. When the sell side empties out, the board price runs ahead of NAV and a positive premium forms.
- A lag in updating NAV. The board price changes moment by moment, but NAV is calculated and published from the latest valuation of the assets. That time gap alone can manufacture a premium that is not real and disappears once a fresh NAV is published.
- Mismatched market hours. The physical gold market and the capital market are not always open at the same time. If news moves the gold price outside the mercantile exchange's trading hours, the fund's board prices it in before NAV does.
- The underlying asset's own premium. This is the subtlest link. Part of the fund's basket is gold coin deposit certificates, and the coin itself trades at a premium over the value of the gold inside it. So even when the board price sits exactly on NAV and the fund premium is zero, you have still bought the coin premium embedded inside that NAV. To understand this layer, the lesson Pricing Gold in Iran is a good starting point.
In theory, the arbitrage opportunity (buy cheap, sell dear) should drain large premiums. In practice, the quality of market making, trading volume, and market psychology can keep a premium in place for a long stretch.
In Iran's market
Three local points make this lesson usable. First, the underlying asset of Iranian gold funds is the domestic coin and bullion, not the global ounce; a fund's return is therefore the product of two variables, the world gold price and the dollar rate. On a day when the global ounce falls but the dollar rises, a gold fund can still close positive. Second, units trade on capital market business days, Saturday through Wednesday, which means the fund has no price during holidays when the physical gold market is active. Third, each fund's NAV is published by its manager, and before any purchase you should compare that figure against the board price; you can also follow current gold and coin prices on the gold prices page. The price discovery mechanism for the coin and bullion that underpin these funds is explained in the previous lesson.
Common mistakes
- "Gold funds have no premium." A gold fund carries two layers of premium: the gap between board price and NAV, and the coin premium sitting inside NAV. The first being zero does not make the second zero.
- "The board price is what my gold is worth." Your holding is worth its NAV. The board price is only what the market agreed to pay today.
- "Tax exempt means free." A tax exemption does not remove the fund's annual expenses; those are still deducted from fund assets and reflected in NAV.
- "A negative premium means guaranteed profit." A negative premium only says the unit trades below NAV. If the cause is weak market making or heavy selling, it can stay negative for a long time.
- "All gold funds are the same." The coin to bullion ratio, the share of securities, and annual expense rates differ between funds, and those differences produce different returns.
Summary
A gold fund is indirect gold ownership with high liquidity and none of the trouble of physical storage, but the price you pay has three components: the value of the underlying gold, the coin premium hidden inside NAV, and the fund's own premium on the board. The professional habit is simple: before every purchase, compare the published NAV against the board price and know how much you are paying for each layer. Commissions are small, but a premium can cost several times as much.
Previous lesson: Coin and Bullion Auctions at Iran's Exchange Center: How the Price Is Discovered and What Happens to the Premium, and the full list of lessons is available at Sahmino Academy.
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