Gold ETFs vs. Physical Bullion vs. Futures: Which Tool Fits Which Goal
Three Tools, Not One Decision
“Should I buy gold” and “how should I buy gold” are two different questions, and the second one has three broad answers: an exchange-traded fund backed by physical gold, physical bullion held directly, or a futures contract. Each gives you exposure to the gold price, but the mechanics, costs, and risks behind that exposure differ enough that the right choice depends heavily on what you are actually trying to do, over what time horizon, and with how much capital.
The Comparison, Side by Side
| Gold ETF | Physical bullion | Futures | |
|---|---|---|---|
| Minimum practical size | One share (tens of dollars) | One coin or small bar (hundreds of dollars) | One contract, typically 100 troy oz notional |
| Ongoing cost | Expense ratio, commonly around 0.25-0.40% per year | No recurring fee if self-stored; storage/insurance cost if vaulted | Roll cost from contango/backwardation; no storage fee |
| Liquidity | High, trades on exchange during market hours | Lower; dealer bid-ask spread, may take days to sell | Very high, but position sizes are large |
| Leverage | None (unlevered exposure) | None | Built-in, often 10x or more via margin |
| Counterparty risk | Depends on structure; physically-backed funds hold allocated or pooled bullion via a custodian | Minimal if self-held; dealer/storage risk if held with a third party | Exchange and clearinghouse risk; margin calls |
| Tax treatment (US, general) | Often taxed as a collectible at sale for physically-backed funds; consult a tax advisor | Typically taxed as a collectible; consult a tax advisor | Typically different treatment (often 60/40 long/short-term blend under Section 1256); consult a tax advisor |
| Best suited for | Portfolio-level allocation, buy-and-hold | Direct ownership, disaster-hedging, no counterparty preference | Short-term trading, hedging, or leveraged exposure |
Tax treatment varies by jurisdiction and by the specific structure of the ETF or fund in question, and it changes with legislation, so the row above should be read as a general orientation rather than current tax advice; if taxes are a material factor in your decision, this is a case where consulting a qualified tax professional is worth the cost.
Gold ETFs: Convenience at the Cost of a Layer of Structure
Exchange-traded funds backed by physical gold, the largest and most established example being SPDR Gold Shares (GLD), which launched in 2004, let an investor buy and sell gold exposure through an ordinary brokerage account, with pricing and liquidity that closely track spot gold during market hours. The tradeoff is an annual expense ratio, commonly in the range of a quarter to four-tenths of one percent depending on the specific fund, and a layer of structure between the investor and the metal: the investor owns shares in a trust that holds the gold, not the gold itself directly. For most investors building a portfolio-level allocation along the lines discussed in our allocation research, this tradeoff, modest ongoing cost in exchange for liquidity, ease of trading, and no need to arrange storage, is a reasonable one.
Physical Bullion: Direct Ownership, at a Cost of Convenience
Coins and bars bought from a bullion dealer give an investor direct ownership with no fund structure in between, which appeals specifically to investors who want to eliminate counterparty and custodial risk from the equation entirely. The costs show up differently than with an ETF: a premium over the spot price at purchase (often a few percent, more for smaller denominations), a bid-ask spread when selling, and either the cost of secure storage and insurance or the risk of self-storage. Liquidity is real but slower and less standardized than an ETF; selling meaningful quantities typically means dealing with a bullion dealer rather than executing instantly on an exchange. Physical bullion tends to make the most sense for investors who specifically value the direct-ownership property itself, sometimes described as wanting an asset with no counterparty at all, rather than investors purely optimizing for cost or liquidity.
Futures: Leverage and Efficiency, for a Different Kind of User
Gold futures contracts, traded on exchanges such as COMEX, let an investor gain exposure to a large notional amount of gold, typically 100 troy ounces per standard contract, while posting only a fraction of that value as margin. This makes futures capital-efficient for short-term trading or for hedging an existing physical or ETF position, but the leverage cuts both ways and margin calls can force a position closure at an inopportune time. Futures also involve a recurring cost or benefit from rolling a position forward as contracts expire, which depends on whether the futures curve is in contango or backwardation at the time. Futures are generally a tool for active traders and hedgers rather than for buy-and-hold portfolio allocation, and an investor unfamiliar with margin mechanics should treat this as meaningfully riskier than the other two options.
A Detail Worth Knowing: Allocated vs. Pooled, and Contract Size
Within each category there is a further layer of variation worth being aware of before committing capital. Among physically-backed ETFs and vaulted-storage services, gold may be held on an “allocated” basis, meaning specific, identifiable bars are assigned to a given investor, or on an “unallocated” or pooled basis, where the investor has a claim on a quantity of gold from a shared pool rather than title to specific bars. Allocated storage generally carries a modest additional fee but removes any ambiguity about which metal belongs to whom if the custodian faces financial difficulty; pooled storage is typically cheaper but introduces a layer of counterparty exposure to the pool operator that an allocated structure avoids. For an investor prioritizing minimal counterparty risk, this distinction matters as much as the ETF-versus-physical choice itself.
Futures markets have also become more accessible to smaller investors through the introduction of micro and mini contract sizes, a fraction of the standard 100-troy-ounce contract, which lowers the minimum capital commitment and margin requirement without changing the underlying mechanics, leverage, roll costs, and margin-call risk, discussed above. This makes futures exposure available at a smaller scale than it was a decade ago, though the underlying risk profile of the instrument itself is unchanged by contract size.
Matching the Tool to the Goal
If the goal is a simple, liquid, portfolio-level allocation to gold as one piece of a diversified portfolio, an ETF is usually the most practical starting point for most investors. If the goal is specifically to hold an asset outside the financial system, with no fund, custodian, or exchange standing between the investor and the metal, physical bullion serves that specific goal in a way an ETF structurally cannot, even though it costs more in premiums and requires solving for storage. If the goal is short-term trading, precise hedging, or leveraged exposure, futures are the tool built for that purpose, but they carry meaningfully more risk and require more active management than the other two.
None of the three is uniformly “better”; each is built for a different job. Investors combining gold exposure with the broader analysis in our four-dimensional framework should choose the vehicle based on their actual goal, time horizon, and comfort with the specific risks of each structure, rather than defaulting to whichever option is most commonly discussed.