Gold and Commodities

Gold produces nothing, commodity funds do not own commodities, and both are sold with an inflation story that the data supports only partially. This guide separates the mechanics from the marketing: real returns over long horizons, how futures roll costs quietly eat returns, and what a defensible allocation actually looks like.

By Karanvir Singh, founder of Quantix Invest

Assets that produce nothing

Start with the structural fact that governs everything else in this guide. A stock represents a business that earns profits. A bond pays interest. A rental property collects rent. Each of these has an internal engine: even if nobody ever wanted to buy your share, the cash flow would still arrive.

Gold has no engine. An ounce of gold in 1975 is an ounce of gold today. It pays nothing, produces nothing, and costs money to store and insure. Its price rises only if someone later pays more for it than you did. Warren Buffett's summary is blunt and mathematically correct: you can dig it out of the ground, refine it, and bury it again while paying people to guard it, and it will not produce anything for the rest of time.

That does not make gold worthless or useless in a portfolio. Currencies also produce nothing, and people hold them for good reasons. But it does mean the analysis has to be different. With stocks you can estimate a return from earnings growth and dividends. With gold there is no such anchor, which is exactly why gold forecasts vary so wildly and why gold's price can go nowhere in real terms for decades.

Gold's long-run real return

The honest long-run number is unimpressive and depends heavily on the start date you pick.

Over centuries. Work by Claude Erb and Campbell Harvey, and the multi-century data in Dimson, Marsh, and Staunton's annual returns yearbook, points to a real (inflation-adjusted) return on gold of roughly zero to under 1% per year over the very long run. Gold preserves purchasing power across centuries. It does not grow it. The famous framing is that an ounce of gold bought a good men's suit in ancient Rome and buys a good men's suit today, which is a fair, if imprecise, description of a zero real return.

Since 1971. Gold's US dollar price was fixed at $35 an ounce until the Bretton Woods system ended in 1971. From that fixed, artificially suppressed starting point through the mid 2020s, gold's nominal return has been strong, roughly 7% to 8% annualized, which works out to something like 3% to 4% real. This is the number gold advocates quote, and it is real, but it embeds a one-time repricing from an administered price to a market price. Treating that as a repeatable long-run return is like measuring a stock's return from the moment before a merger announcement.

The distribution is brutal. Averages hide what actually happened to gold holders.

The critical line is the second one. An investor who bought gold at the January 1980 peak waited roughly 27 years to recover in nominal dollars, and adjusting for inflation, had still not recovered decades later. That is a stock-market-crash-sized drawdown lasting a generation, in an asset marketed as safe.

Does gold actually hedge inflation?

This is the central marketing claim, and the evidence is genuinely mixed. The careful answer is that gold is a poor short-run and medium-run inflation hedge, and only a loose long-run one.

The case against, from the record:

• 1980 to 1984: US inflation ran high in the early part of this stretch. Gold fell sharply. Holding gold through the tail of the great inflation was a losing trade.
• 1988 to 2000: Cumulative US inflation over this period was substantial. Gold's nominal price fell. A twelve-year period of steadily eroding purchasing power in which the "inflation hedge" lost money in both nominal and real terms.
• 2021 to 2022: US CPI inflation hit its highest levels since the early 1980s, peaking above 9% annualized. Gold was roughly flat to modestly down over 2022. The single cleanest natural experiment in modern times, and gold did not deliver the advertised behavior.

The case for:

• Over horizons measured in many decades, gold's purchasing power has been roughly preserved, which is the definition of a long-run inflation hedge even if the path is terrible.
• Gold has performed strongly in episodes of currency debasement, loss of confidence in monetary authorities, and negative real interest rates. The 1970s and the 2001 to 2011 run both fit that description.
• Gold is a hedge against a specific and severe scenario (monetary system stress, sanctions, capital controls, currency collapse) rather than against the CPI print.

Erb and Harvey's framing is the most useful available: gold is best understood not as tracking inflation but as oscillating around a long-run "golden constant" real price, and the observable driver of gold's price in modern data is real interest rates. When real yields are low or negative, the cost of holding a non-yielding asset is low and gold does well. When real yields rise, holding gold means giving up meaningful risk-free real return, and gold struggles. That single relationship explains 2022 better than any inflation story: inflation was high, but the Federal Reserve raised rates faster, real yields rose sharply, and gold went nowhere.

If your actual concern is consumer price inflation over the next five to ten years, the instruments designed for that job are TIPS and Series I savings bonds, which are contractually linked to CPI, not gold, which is linked to sentiment about real rates and monetary stability. The distinction is not academic. One is a contract, the other is a hope.

Where gold has genuinely helped

Setting the marketing aside, there are real, documented roles gold has played.

Low correlation to stocks and bonds. Gold's correlation with US equities over long periods has hovered near zero, sometimes slightly negative. That is genuinely rare. Almost every risk asset becomes correlated with stocks during a crisis; gold frequently has not. In 2008, the S&P 500 fell roughly 37% while gold finished the year modestly positive. In 2022, when stocks and bonds both fell sharply and the traditional 60/40 portfolio had one of its worst years on record, gold was approximately flat, which made it one of the very few things that was not losing money.

Tail insurance against monetary and geopolitical breaks. Gold is not anyone's liability. It has no counterparty, no issuer that can default, and no government whose promise is required. In scenarios of sanctions, capital controls, banking crises, or currency destruction, that property is the entire point, which is also why central banks, particularly in emerging economies, accumulated gold heavily through the 2020s as a reserve asset outside the dollar system.

The uncorrelated volatile asset problem. Here is the subtle argument that makes gold defensible in portfolio terms even with a near-zero expected real return. An asset with high volatility and near-zero correlation can improve a portfolio's risk-adjusted return through rebalancing, even if its own standalone return is mediocre, because you systematically sell it after it spikes and buy it after it falls. This is the honest, non-mystical case for a modest gold allocation, and it is the reason gold shows up in permanent-portfolio and risk-parity style constructions rather than in growth portfolios.

The counterargument, which deserves equal weight: high-quality Treasuries have historically done the crisis-diversification job with a positive expected return and lower volatility. Gold's advantage over Treasuries appears specifically in the inflationary-crisis and monetary-distrust scenarios where bonds fail, which is a narrower window. Whether that narrow window justifies the allocation is a judgment call, not a fact.

Commodities are not gold

Broad commodities are a different asset with different mechanics, and conflating them is a common and costly error. A broad commodity index covers energy (usually the largest weight, often 30% or more), industrial metals, precious metals, agriculture, and livestock.

Unlike gold, most commodities are consumed, are expensive and awkward to store, and are produced by industries that respond to high prices by producing more. That last point matters enormously: high prices in commodities are self-correcting. Expensive oil funds drilling; expensive corn funds planting. That supply response is why the long-run real price trend of most commodities has been flat to declining, as technology has continually made extraction and production cheaper. This is the opposite of a growth asset.

The academic case for commodity futures (not spot commodities) rests on three claimed sources of return: collateral yield (the interest on the cash backing the futures), roll yield (which can be positive or negative, discussed below), and spot price change. Influential research by Gary Gorton and Geert Rouwenhorst in 2006 found that a collateralized commodity futures index had delivered equity-like returns with negative correlation to stocks and positive correlation to inflation. The paper was widely read, institutional money poured into commodity index products, and the subsequent decade delivered dismal results as the very inflows arguably competed away the return. That sequence is itself a lesson worth more than the original finding.

What commodities do have, unlike gold, is a genuine link to unexpected inflation. Energy and food are large components of consumer price indexes, so when those prices spike, commodity indexes rise more or less mechanically. In 2022, broad commodity indexes rose sharply while stocks and bonds fell. That is a real, useful property. The price for it is high volatility, a long-run real return that may be near zero after costs, and the futures mechanics we turn to now.

Futures, roll yield, and contango: the hidden cost

Understanding this section is the difference between owning a commodity fund knowingly and being confused by it for years.

A commodity fund does not own barrels of oil in a warehouse. Storage is impractical and expensive. Instead it owns futures contracts, agreements to buy a commodity at a set price on a set future date. Because contracts expire, the fund must continuously sell the expiring contract and buy a later-dated one. This is called rolling, and it happens every month.

What that roll costs or earns depends on the shape of the futures curve.

• Contango: later-dated contracts cost more than nearer ones. This is the normal state for storable commodities, because the later price has to compensate for storage, insurance, and financing between now and then. When a market is in contango, the fund sells low and buys high on every roll. That is negative roll yield, a persistent drag.
• Backwardation: later-dated contracts cost less than nearer ones. This happens when there is urgent demand for the physical commodity right now, typically during shortages. The fund sells high and buys low on every roll: positive roll yield, a persistent tailwind.

Historically, energy markets spent long stretches in backwardation, which is where much of the early research's attractive returns came from. From roughly 2006 onward, persistent contango in energy markets turned that tailwind into a headwind for years.

Worked example: how a fund loses money while the price is flat

Suppose crude oil's spot price sits at exactly $80 per barrel and stays there all year. The futures curve is in contango: the contract expiring next month trades at $80, and each subsequent month trades about 1% higher than the one before.

Your fund holds the front-month contract. Each month it must roll.

Month 1. The fund holds 100 contracts of the expiring month at $80. It sells them at $80 (converging to spot at expiry) and buys the next month at $80.80. With $8,000 of value per unit position, it can now buy 8,000 / 80.80 = 99.01 contracts. It owns 1% less oil exposure than it did.

Month 2. Same thing. Spot is still $80, so the contract it holds converges back down to $80, and it rolls again into a contract 1% higher. Its contract count falls another 1%, to about 98.03.

After twelve months. Contract count is 100 x 0.99¹² = 88.6. Spot oil is unchanged at $80 per barrel. Your fund's commodity exposure has shrunk by 11.4%.

Add back the collateral yield, which is real: the fund's cash sits in Treasury bills. At 4% short-term rates that adds about 4 percentage points. Subtract an expense ratio of, say, 0.75%. Net result for the year: roughly minus 11.4% plus 4% minus 0.75% = about minus 8.2%, in a year when the commodity's price did not move at all.

Now reverse it. If the market is in backwardation at 1% per month, the same arithmetic produces 100 x 1.01¹² = 112.7 contracts, a gain of 12.7% in commodity exposure with a flat spot price, plus collateral yield. Roll yield is not a fee. It is a real economic quantity that swings both ways and has historically been the single largest driver of long-run commodity index returns, larger than spot price changes.

Two structural consequences follow. First, this is why funds tracking a single commodity, particularly natural gas, have delivered catastrophic long-run results while the underlying commodity was merely volatile: persistent steep contango compounds relentlessly. Second, it explains why better-designed commodity funds use "optimized" or laddered roll strategies that spread positions across multiple contract months to reduce the drag, and why comparing commodity funds by expense ratio alone misses the far larger cost.

Vehicles: bullion, ETFs, miners, and TIPS

A word on miners. They are frequently pitched as leveraged gold. That leverage is real in the mechanical sense: if gold rises 10% and a miner's all-in cost per ounce is fixed, its profit margin can rise far more than 10%. But the leverage runs both directions, mining costs themselves rise with energy and labor inflation, and gold mining equities carry every ordinary corporate risk plus the political risk of operating in whichever country the ore happens to be in. Over multiple long periods, mining indexes have badly lagged the metal. If your thesis is "gold price up," buy gold. If your thesis is "this management team allocates capital well," you are stock picking, which is a different guide.

A word on the pitch. Physical gold is marketed harder than almost any other retail investment, often through advertising that pairs currency-collapse warnings with high-markup coins. Numismatic and "collector" coins carry markups that can run 20% or more over melt value and are sold on stories about confiscation and rarity. If you decide gold belongs in your portfolio, low-premium bullion or a mainstream physically backed ETF gets you the exposure without paying for the story.

The tax treatment nobody mentions

In the US, physical gold and silver, and physically backed precious metals ETFs structured as grantor trusts, are generally treated as collectibles. Long-term gains on collectibles are taxed at a maximum rate of 28%, rather than the 0%, 15%, or 20% long-term capital gains rates that apply to stocks. On a large, long-held position, that difference is substantial.

Some commodity futures funds are structured as limited partnerships and issue a Schedule K-1 rather than a 1099, which complicates tax filing and can generate taxable gains in years you did not sell. Others are structured to avoid the K-1 and issue a 1099 instead. Check the structure before buying, not in April.

The practical implication is straightforward: if you hold gold or commodity exposure and have tax-advantaged account space available, that is usually the better home for it. Rules and rates change and depend on your situation; this is education, not individualized tax or financial advice, so confirm specifics with a tax professional.

Sane allocation ranges

Reasonable people land anywhere from zero to about 10%. Here is how the positions differ.

If you decide to hold some, three rules make the difference between a diversifier and a distraction:

• Size it so that a 40% decline over seven years does not change your plan. That is not a hypothetical; it is what happened from 2011 to 2018. If a 5% position falling 40% costs you 2% of your portfolio, fine. If it is 25%, you will not hold it.
• Rebalance mechanically. The entire theoretical benefit of a zero-expected-return, low-correlation asset comes from rebalancing. If you do not rebalance, you are holding a lottery ticket and the argument for it collapses.
• Decide before the headlines, not during them. Gold gets bought after it has already run, in the middle of a scare, which is the worst possible entry discipline. Set the target once, write down the reason, and execute it on a schedule.

And be clear about which problem you are solving. If the worry is consumer inflation, TIPS and I bonds address it contractually. If the worry is a market crash, high-quality Treasuries have historically done that job with a positive expected return. Gold's unique value is against the narrower scenario where both of those fail at once: currency debasement, sanctions, capital controls, loss of faith in the issuer. That is a real scenario. It is just not most scenarios.

Common mistakes

• Calling gold an inflation hedge. It failed in 1980 to 1984, failed across the 1990s, and failed in 2022 during the highest US inflation in forty years. It tracks real interest rates and monetary confidence, not CPI.
• Calling gold safe. It has stock-like volatility and has spent decades underwater in real terms. It is a risk asset with an unusual correlation, and it should be sized like one.
• Measuring gold from 1971. That start date embeds a one-time repricing from an administered $35 to a market price. Useful history, misleading forecast.
• Buying a commodity fund expecting it to track the commodity. Roll yield, not spot price, has been the dominant driver of long-run commodity index returns, and contango can cost double digits per year.
• Holding single-commodity front-month funds long term. These are trading instruments. Steep persistent contango compounds against you relentlessly, and some have lost the overwhelming majority of their value while the underlying commodity merely went sideways.
• Buying miners as a proxy for gold. Different asset, additional risks, and a long record of lagging the metal.
• Paying numismatic markups. Collector coin premiums can exceed 20% over metal value. You are buying a story with a spread attached.
• Ignoring the 28% collectibles rate and holding precious metals in a taxable account when tax-advantaged space was available.
• Buying after a run. Gold's inflows peak after its price does, which is the mechanism by which retail gold investors have historically earned less than gold.
• Not rebalancing. Without rebalancing, the main mathematical argument for holding a zero-expected-return diversifier disappears.

Bottom line. Gold's long-run real return has been close to zero, its volatility is close to that of stocks, and its inflation-hedging reputation is not supported by the periods when it mattered most. What it has genuinely offered is near-zero correlation to stocks and bonds, no counterparty risk, and useful behavior in a specific class of monetary and geopolitical crises. Broad commodities offer a real link to unexpected inflation, paid for with futures roll costs that most buyers never learn about. A small deliberate allocation, mechanically rebalanced, is defensible. Zero is also entirely defensible, and it is what most disciplined index investors choose. What is not defensible is buying either one after a scary headline, at a 20% markup, on the theory that it is the safe option.