Spot silver rises ten percent over a year. A fund holding silver returns something slightly different, and over several years the difference compounds into a number worth knowing about in advance.
None of this is hidden or improper. It follows from the fact that holding a physical commodity costs money, and that some funds do not hold the commodity at all but hold contracts on it instead.
The size of the gap depends on which structure an investor picked, and the structures differ more than their names suggest.
Where the Instrument Choice Actually Bites
The instrument question sits at the centre of how to invest in silver, and it is usually framed as physical versus paper.
That framing is too coarse. There are at least four routes, and they behave differently:
- Physical metal held directly, with storage, insurance and dealer spreads
- Physically backed funds and notes, where a custodian holds bars against the shares
- Futures-based funds, which hold contracts and roll them forward
- Mining equities, which are equity exposure with silver as one input among several
The last category is often grouped with the others and does not belong there. A miner’s return depends on production costs, management decisions, balance sheet and broad equity sentiment, so it can diverge from the metal for years in either direction.
Physically Backed Structures and Their Costs
For the funds that do hold bars, the drag is straightforward: storage, insurance and administration are real expenses paid from the assets.
Research on the European market notes that the total expense ratio of silver exchange-traded commodities sits between 0.19% and 0.75% per year, covering insurance premium, storage costs and additional management fees.
That range matters. The gap between the cheapest and dearest is more than half a percentage point annually, compounding against the position for as long as it is held.
The European Wrapper Problem
The same research flags a structural point that catches people out when comparing across regions. Diversification rules under the European fund framework do not permit a fund holding a single constituent, so silver is available in Europe mainly as an exchange-traded commodity rather than an exchange-traded fund.
These are certificates issued by a financial institution and collateralised with physical metal. That is a different legal structure from a fund holding assets on behalf of shareholders, and it introduces an issuer element that a fund structure does not have. Swiss regulation permits single-commodity funds, which is why the available structures differ by domicile.
Futures-Based Funds and Roll Yield
The larger and less visible source of divergence appears in funds that never hold metal.
A regulatory filing for one such fund sets out the mechanism plainly: returns from futures trading are described as excess return, being the combined return based on the spot prices of the index commodity and the roll yield from trading futures contracts, with rolling in a backwardated market tending to enhance returns and rolling in a contangoed market tending to cause a drag.
The same filing notes that although a roll method may minimise losses due to contango, there can be no assurance that this outcome will occur.
Contango and Backwardation
The two terms describe the shape of the futures curve. In contango, longer-dated contracts cost more than nearer ones, so each roll sells cheaper and buys dearer. In backwardation the reverse applies and the roll adds to returns.
For a long-term holder this is the decisive structural difference. A futures-based fund in persistent contango can lag spot substantially over years even when the metal price rose, and no amount of correct directional judgment recovers it.
Sources of Divergence, Ranked
For a typical physically backed holding, in rough order of size:
- The expense ratio, the largest and most predictable component
- Roll yield, applicable only to futures-based structures but potentially the largest of all
- Bid-ask spread, paid on entry and exit
- Premium or discount to net asset value, which varies with trading conditions
- Currency effects, where the fund’s currency differs from the investor’s
What to Check Before Buying
The information is disclosed, so the work is looking rather than deducing:
- Confirm the structure in the prospectus, physical or futures-based, since the name rarely says
- Check the expense ratio against alternatives with the same exposure
- Compare three-year tracking against spot, not just the stated fee
- Read the roll methodology if the fund uses futures
- Note the domicile, which determines the legal wrapper and the tax treatment
- Check spreads at the times you would actually trade
What the Gap Means Over Time
A drag of half a percent a year is easy to dismiss on a single statement and substantial across a decade. It is also one of the few variables an investor controls entirely, requiring no view on the metal at all.
The wider point is that these products are not interchangeable. Two holdings both described as silver exposure can differ in what they legally represent, what they cost to hold, and whether their returns track the metal or the shape of a futures curve.
Establishing which one you hold takes a few minutes in the prospectus and settles a question that otherwise only becomes visible years later.
