You have probably heard the word commodity thrown around in financial news. Oil prices are rising. Gold is at an all-time high. A drought is disrupting wheat exports. But what does any of that actually mean for you as an investor – and should it matter to your portfolio?
Most beginner investing content skips commodities entirely. It focuses on stocks, bonds, and ETFs – and for good reason. Those are the core building blocks. But with geopolitical uncertainty reshaping markets, sector rotation in 2026 favouring real assets, and gold hitting all-time highs, commodities have become impossible to ignore. Understanding what they are – and how they actually work – has become genuinely useful financial literacy.
This article explains commodities from the ground up. What they are. Why they behave so differently from stocks. How their prices are actually set. And the practical ways a beginner investor can access them without opening a futures trading account.
What Is a Commodity?
A commodity is a raw material or basic good used to produce other things. Oil is refined into fuel. Wheat is milled into flour. Copper is wired into buildings and electronics. Gold is stored as a reserve of value.
The defining characteristic of a commodity is fungibility. One unit is essentially interchangeable with another unit of the same type and grade. A barrel of West Texas Intermediate crude from Texas is the same as a barrel from Oklahoma. A troy ounce of gold refined to 99.9% purity is identical whether it was mined in South Africa or Australia. This interchangeability is what makes commodities tradeable on global exchanges at a single, transparent price. (Source: Britannica Money – What Are Commodities?)
A commodity has no brand, no management team, no earnings call. Its price is set by the global balance of supply and demand — nothing more.
That distinction matters. When you buy a stock, you own a slice of a business that can grow, innovate, and compound in value over decades. When you buy a commodity — or a fund that tracks one — you own exposure to a price. Nothing more, nothing less. The implications of that difference are significant.
The Three Categories of Commodities
Commodities divide into three broad categories: energy, metals, and agriculture. Each has its own price drivers, risk profile, and role in a portfolio. (Source: Britannica Money – What Are Commodities?)
Energy: the commodity that moves everything
Energy commodities include crude oil, natural gas, heating oil, and gasoline. Crude oil is the most actively traded commodity in the world — futures contracts representing roughly 2.8 billion barrels change hands daily. Its price ripples across nearly every other part of the economy. When oil gets expensive, the cost of shipping, manufacturing, and agriculture all rise with it. (Source: Britannica Money – What Are Commodities?)
Energy prices are driven by global economic activity (growth = demand), OPEC production decisions, geopolitical events that disrupt supply, and seasonal patterns — natural gas spikes in cold winters. Oil entered 2026 under supply pressure as OPEC+ continued unwinding production cuts into an already oversupplied market. J.P. Morgan Research forecasts Brent crude averaging around $58 per barrel through 2026, well below prior-cycle highs. (Source: J.P. Morgan – 2026 Market Outlook)
Metals: precious and industrial
Metals split into two subcategories with very different characteristics.
Precious metals — gold, silver, platinum, palladium — are valued primarily as stores of wealth and inflation hedges. Gold is the most recognised. Central banks hold it as a reserve asset. Investors buy it during uncertainty. Its price rises when real interest rates fall, when currencies weaken, and when geopolitical risk escalates. Gold surged nearly 60% in 2025 and entered 2026 near all-time highs. Central bank purchases more than doubled relative to the 2015–2019 average. J.P. Morgan forecasts gold reaching $5,000 per ounce by Q4 2026. (Source: J.P. Morgan – 2026 Market Outlook; Aberdeen Investments – Commodities 2026)
Industrial metals — copper, aluminium, zinc, nickel, lithium — are the workhorses of the physical economy. Copper goes into every building, every EV, every power grid. Aluminium is in aircraft and packaging. Lithium powers batteries. These metals are highly cyclical — demand surges when construction and manufacturing are strong, and falls when they slow. Copper posted its strongest annual gain since 2009 in 2025, driven by AI data centre buildout, electrification, and tight supply. UBS projects global copper consumption growing 2.8% annually through 2026 as the energy transition accelerates. (Source: UBS – Can Commodities Rally in 2026?; Aberdeen Investments)
Agriculture: the commodities that feed the world
Agricultural commodities include grains (wheat, corn, soybeans, rice), softs (coffee, cocoa, sugar, cotton), and livestock (cattle, hogs). Their prices are driven by weather, crop yields, trade policy, and long-run population growth.
Agricultural prices can spike fast. A drought in a major wheat-growing region, a conflict disrupting export corridors, or a crop disease can move prices significantly within days. In 2025, wheat and corn prices softened as global harvests were ample and supply chains normalised. But J.P. Morgan agricultural strategists flag that world stocks-to-use ratios are near multi-year lows heading into 2026/27 — meaning prices are increasingly sensitive to any supply disruption. (Source: J.P. Morgan – 2026 Market Outlook; Morgan Stanley – Commodity Market Outlook 2026)
| Category | Key examples | Main price drivers | 2025 standout |
|---|---|---|---|
| Energy | Crude oil, natural gas, heating oil, gasoline | Global growth, OPEC policy, geopolitics, seasonal demand | Natural gas surged on European LNG demand; oil declined on oversupply |
| Precious metals | Gold, silver, platinum, palladium | Real interest rates, central bank demand, inflation, risk sentiment | Gold +59.7%, Silver +93% — both hit all-time highs |
| Industrial metals | Copper, aluminium, zinc, nickel, lithium | Construction, electrification, EV demand, supply constraints | Copper +28.8% — strongest gain since 2009 |
| Agriculture | Wheat, corn, soybeans, coffee, sugar, cattle | Weather, crop yields, trade policy, population growth | Soybeans +13.9%; wheat and corn softened on ample global supply |
(Source: Aberdeen Investments – Commodities: The Year That Was, The Year That Could Be)
How Commodities Differ from Stocks
This is the most important concept to understand before adding commodities to a portfolio. Commodities are not just another asset class — they are structurally different from stocks in three important ways.
1. Commodities do not compound
A share of stock represents ownership in a business. That business hires people, develops products, retains earnings, and grows over time. The power of compounding is baked into equities — profits reinvested become more profits. Over decades, that compounds into significant wealth.
A barrel of oil does not grow. It does not hire engineers or reinvest earnings. Its value tomorrow is entirely a function of what someone will pay for it tomorrow. Commodities are a bet on price, not on business growth. This makes them poor long-run compounders but potentially useful shorter-term diversifiers.
2. Commodities pay no income
Stocks can pay dividends. Bonds pay coupons. Commodities pay nothing while you hold them. In fact, storing physical commodities costs money — warehousing, insurance, transportation. This structural reality shapes how commodity ETFs are built and priced, which we will come to shortly.
3. Commodities move differently — and that is their portfolio value
Commodities have historically low correlation to equities and bonds. They do not always move in the same direction at the same time. The clearest example is 2022 — one of the worst years for both equities and bonds simultaneously. Broad commodity indices rose sharply that year as inflation spiked and supply chains broke down. Oil, wheat, and metals all surged while stock and bond portfolios bled.
That low correlation is not guaranteed in every environment. During sharp risk-off events — like March 2020 — commodities can fall alongside stocks as demand collapses. But over full market cycles, commodities have provided genuine diversification value for portfolios built around equities and bonds.
| Stocks | Bonds | Commodities | |
|---|---|---|---|
| What you own | A share of a business | A loan to a company or government | Exposure to a raw material’s price |
| Income | Dividends (sometimes) | Coupon payments | None |
| Long-run return driver | Earnings growth + dividends | Interest payments + return of principal | Supply and demand shifts in price |
| Compounds over time? | Yes | Yes (reinvested coupons) | No |
| Inflation hedge? | Partially | Poorly — fixed payments lose real value | Yes — commodity prices often rise with inflation |
| Correlation to equities | — | Low to moderate | Low historically |
How Commodity Prices Are Actually Set: Futures Markets
Most commodities are not priced through a simple buyer-meets-seller transaction like a stock on an exchange. They are priced through futures markets — and a basic understanding of this changes how you interpret commodity ETF performance.
A futures contract is an agreement to buy or sell a specific quantity of a commodity at a specific price on a specific future date. An airline might buy oil futures to lock in fuel costs six months from now. A wheat farmer might sell futures to guarantee the price of their harvest before it has even been grown. These contracts were originally invented to protect producers and consumers from price swings — not as investment vehicles. But financial investors now participate in them too. (Source: Britannica Money – What Are Commodities?)
The hidden cost: contango and backwardation
Futures contracts expire. When they do, a fund holding futures must sell the expiring contract and buy the next one — a process called “rolling.” The cost of that roll depends on the shape of the futures curve, and this is where many beginners get caught out.
Contango is when future-dated contracts are priced higher than the current (spot) price. Rolling in contango means the fund is continuously selling lower and buying higher. Over time, this erodes returns significantly — which is how a crude oil ETF can deliver a loss even when oil prices have risen modestly over the same period. WisdomTree’s research estimated the average historical roll cost at around 7% per year dating back to 1999. (Source: ETF Database – A Guide to Roll Yields)
Backwardation is the opposite — when future-dated contracts are cheaper than the current price. Rolling in backwardation actually adds to returns. Energy markets frequently flip between the two states depending on inventory levels and supply conditions. (Source: ETF.com – Commodity ETF Roll Strategies)
| Situation | What it means | Effect on futures-based ETF returns |
|---|---|---|
| Contango | Future contracts cost more than today’s spot price | Rolling erodes returns — ETF underperforms the spot price |
| Backwardation | Future contracts cost less than today’s spot price | Rolling boosts returns — ETF outperforms the spot price |
You do not need to master futures mechanics to invest in commodities. But knowing that roll costs exist — and that they can drag on returns even when headline prices are rising — is important context before you buy any futures-based commodity ETF.
How Beginners Can Actually Access Commodities
There are four practical ways for a beginner to get commodity exposure. Each has different trade-offs around cost, simplicity, and how closely it tracks the underlying commodity price.
1. Physically-backed ETFs — gold and silver only
Some ETFs hold the physical commodity itself. The SPDR Gold Trust (GLD) stores actual gold bars in vaults in London. When you buy GLD, you own a fractional interest in those bars. The ETF tracks the gold spot price closely and entirely avoids the contango problem — there are no futures contracts to roll.
Physical backing works for gold and silver because they are compact, durable, and simple to store. It does not work for oil, gas, or wheat — you cannot warehouse barrels of crude in a vault. So physically-backed ETFs are largely limited to precious metals. GLD (expense ratio ~0.40%) and the cheaper iShares Gold Trust (IAU, ~0.25%) are the most commonly used.
2. Futures-based ETFs — oil, gas, agriculture, broad baskets
For most commodities, ETFs hold futures contracts instead of the physical good. These are accessible through any standard brokerage account — no special futures trading account required.
The most widely used broad commodity ETF for individual investors is the Invesco DB Commodity Index Tracking Fund (DBC). It provides diversified exposure across energy, metals, and agriculture using an “optimum yield” rolling methodology designed to reduce contango drag. DBC tracks 14 of the most heavily traded physical commodities — including oil, natural gas, gold, silver, copper, corn, wheat, and soybeans. Expense ratio: 0.87%. (Source: Mezzi – DBC vs PDBC vs COMB vs GSG)
For investors prioritising lower costs, the iShares MSCI Global Agriculture Producers ETF (VEGI) or iPath Bloomberg Commodity Index Total Return ETN (DJP) are alternatives. The Bloomberg Commodity Index-tracking fund COMB carries one of the lowest expense ratios in the space at 0.25%. (Source: Mezzi – Broad Commodity ETF Comparison)
3. Commodity-linked equities — indirect but income-generating
Instead of buying the commodity directly, you can buy shares of companies that produce or process it. Energy sector ETFs like XLE and XOP hold oil majors and explorers. Gold miner ETFs like GDX hold companies whose profits move with the gold price. Materials ETFs like XLB expose you to mining, chemicals, and metals producers.
Commodity equities are correlated with commodity prices but also influenced by company-specific factors — management quality, production costs, and balance sheet strength. They typically pay dividends, which pure commodity ETFs do not. They are not a pure play on the commodity price, but they offer a more familiar equity wrapper and can be held in the same portfolio as your other equity ETFs without the futures complexity. As noted in our Sector Rotation piece, Energy and Materials sector ETFs have seen strong inflows in early 2026 as investors rotate toward real economy exposure.
4. Physical ownership — gold and silver bullion
Some investors prefer to hold physical gold or silver coins and bars. This eliminates counterparty risk — you own the metal outright, with no fund structure between you and it. But it introduces practical costs: secure storage, insurance, and a wider bid-ask spread when buying or selling. For most investors, a physically-backed ETF provides near-identical exposure with significantly lower friction.
| Method | Examples | Tracks spot price? | Pays income? | Best suited for |
|---|---|---|---|---|
| Physically-backed ETF | GLD, IAU (gold); SLV (silver) | Very closely | No | Clean gold/silver exposure with no roll drag |
| Futures-based ETF | DBC (broad); USO (oil); DBA (agriculture) | Closely, subject to roll costs | Sometimes (distributions) | Oil, gas, agriculture, diversified commodity baskets |
| Commodity equity ETF | XLE (energy), GDX (gold miners), XLB (materials) | Indirectly | Yes (dividends) | Commodity exposure with income, familiar equity wrapper |
| Physical ownership | Gold/silver coins and bars | Exactly | No | No counterparty risk; long-term storage |
Why Commodities Are Relevant Right Now
Commodities tend to come in and out of investor focus depending on the macro backdrop. For most of 2015 to 2021, they were largely ignored as technology stocks dominated returns and inflation stayed low. That changed sharply in 2022 — and the conditions that brought commodities back into focus have not fully reversed.
In 2026, several forces are keeping them relevant simultaneously.
- Geopolitical risk remains elevated. Escalating tensions in the Middle East sent oil and gold sharply higher in early 2026. This is the classic commodity playbook: conflict introduces supply risk in energy, and uncertainty drives safe-haven demand for gold. These dynamics did not disappear when other macro risks eased.
- Central banks are structurally buying gold. Central bank gold purchases more than doubled relative to the 2015–2019 average and have continued accelerating. Countries are diversifying away from US dollar reserves. UBS projects central bank and sovereign wealth gold buying of around 900 metric tons in 2026. (Source: UBS – Can Commodities Rally in 2026?)
- The electrification theme is a new multi-decade demand driver. The shift to electric vehicles and renewable energy requires unprecedented quantities of copper, aluminium, lithium, and nickel. Morgan Stanley notes global EV sales exceeding 20 million in 2025 — over a quarter of all new cars. This creates structural commodity demand that did not exist in previous cycles. (Source: Morgan Stanley – Trends Driving Optimism in 2026)
- Sector rotation is favouring real assets. As covered in our Sector Rotation piece, money flows in early 2026 have moved strongly into Materials and Energy as investors rotate away from stretched technology valuations toward real economy exposure. Commodities sit at the core of that trade.
The Risks: What Commodities Cannot Do
Understanding the case for commodities requires equal clarity about where they fall short.
- They are boom-and-bust assets. Commodities move in long, powerful cycles driven by supply and demand imbalances. Entering at the peak of a cycle can mean years of flat or negative returns. Gold had an extended flat period after its 2011 peak. Oil spent years below $60 after the 2014 supply glut. Cyclicality is their defining characteristic.
- Futures-based ETFs can significantly lag spot prices. When markets are in sustained contango, roll costs compound quietly. An investor watching commodity headline prices and expecting similar ETF returns can be meaningfully disappointed.
- They do not protect you in every downturn. The diversification benefit works best over full market cycles and inflationary shocks. In sharp demand-driven collapses — like March 2020 — commodity prices can fall alongside equities as the global economy seizes up.
- Volatility is high. Individual commodity prices routinely move 20–50% or more in a single year in either direction. A large, concentrated commodity position can expose a portfolio to swings that most long-term investors are not comfortable holding through.
Where Commodities Fit in a Beginner Portfolio
Commodities are not a core growth asset. They are a contextual diversifier — one that earns a small, supporting role rather than a starring one. Most research places the appropriate allocation for a long-term investor at 5% to 10% of a portfolio at most, with the lower end more appropriate for inflation-hedging and the higher end reserved for investors with specific views on commodity cycles or geopolitical risk. (Source: ETF.com – Commodity ETFs: Everything You Need to Know)
| Investor type | Suggested approach | Why |
|---|---|---|
| New investor, just starting out | Skip commodities for now. Build a core equity and bond allocation first. | The complexity and volatility are not worth it until the foundation is solid. See our First Portfolio guide. |
| Investor with a core portfolio in place | Consider a 5% allocation to a broad commodity ETF (DBC) or gold ETF (IAU/GLD) as a satellite position. | Adds inflation protection and low-correlation diversification at the margin. |
| Investor concerned about inflation or geopolitical risk | A 5% gold allocation + 5% broad commodity tilt in the satellite sleeve of a core-satellite portfolio. | Gold and broad commodities have historically performed well in these environments specifically. |
| Investor chasing recent commodity performance | Be cautious. Commodities are deeply cyclical. Entering after a big run — like gold’s 2025 surge — significantly raises timing risk. | The same pattern covered in Why Investors Buy High and Sell Low applies directly here. |
Try It Yourself: The Zorroh Portfolio Analyzer
The best way to understand what commodities actually do to a portfolio is to model it yourself. Use the Zorroh Portfolio Analyzer to compare commodity allocations against a baseline over real historical periods.
🧭 Suggested test: does adding commodities improve your portfolio?
- Portfolio 1 (baseline): 60% SPY + 40% AGG — standard equity/bond mix.
- Portfolio 2 (broad commodities): 55% SPY + 35% AGG + 10% DBC.
- Portfolio 3 (gold only): 55% SPY + 35% AGG + 10% GLD.
- Date range: 2012 to 2026 — includes the low-inflation 2010s, the 2020 crash, the 2022 inflation shock, and the current broadening rotation.
- Rebalancing: Annual.
What to look for:
- CAGR: Did adding commodities help long-run returns, or drag on them?
- Max Drawdown: Did the commodity sleeve reduce losses in 2020 or 2022?
- Sharpe Ratio: Better or worse risk-adjusted returns with commodities included?
- Correlation Matrix: How uncorrelated are commodities to the equity and bond portions?
- Calendar Year Heatmap: Which specific years did commodities help, and which did they hurt?
Final Takeaway
Commodities are the raw materials the global economy runs on — oil, gold, copper, wheat, and dozens more. Unlike stocks, they do not grow, compound, or pay income. Their prices are set entirely by supply and demand, driven by weather, geopolitics, industrial activity, and economic cycles.
For most beginners, the case for a small commodity allocation is primarily diversification and inflation protection — not return enhancement. They move differently from stocks and bonds, which is their core portfolio value. In the same way that rebalancing is a risk management discipline rather than a return formula, a modest commodity allocation is a portfolio insurance policy — not a performance driver.
In 2026, with geopolitical risk elevated, precious metals at all-time highs, and sector rotation favouring real assets, commodities have moved from a niche topic to a mainstream portfolio conversation. Understanding what they are — and how they actually work — puts you in a better position to decide whether, and how, they belong in yours.
Disclaimer:
The content on this blog (Zorroh) is for educational purposes only and does not constitute investment advice. Past performance is not indicative of future results. Investing involves risk, including possible loss of principal. Always conduct your own research or consult a qualified professional before making investment decisions.