Commodities

Resources That Power the Global Economy

Commodities are physical resources used throughout the global economy. They include energy products, precious and industrial metals, agricultural goods, and other raw materials. Unlike stocks and bonds, commodities are not ownership interests in companies or debt obligations. Their value is closely connected to the supply and demand for the underlying resource.

Commodity markets can respond to economic growth, inflation, weather, production levels, inventories, geopolitical developments, transportation constraints, and changes in consumer or industrial demand. These characteristics can make commodities behave differently from traditional financial assets.

How Commodity Markets Work

Commodity markets connect producers, commercial users, traders, and investors. Producers may use these markets to manage the prices they receive for future production, while businesses that depend on raw materials may use them to manage future purchasing costs.

Investors can also participate in commodity markets to obtain exposure to price movements or diversify broader portfolios. However, investing in commodities does not always mean purchasing and storing the physical resource.

Exposure can be obtained through futures contracts, exchange-traded products, commodity funds, shares of resource-producing companies, and in some cases direct ownership of physical commodities.

Major Commodity Categories

Commodities cover a wide range of resources, and the factors affecting one market may be very different from those affecting another. Oil, gold, copper, wheat, and natural gas, for example, each have their own supply chains and sources of demand.

Energy Commodities

Energy markets include crude oil, natural gas, gasoline, heating fuels, and other energy products. These resources are essential to transportation, electricity generation, manufacturing, heating, and many other areas of economic activity.

Energy prices can be influenced by global economic growth, production decisions, inventories, transportation capacity, seasonal demand, technological changes, and geopolitical developments.

Precious Metals

Precious metals include gold, silver, platinum, and palladium. These metals have industrial applications, but some also have a long history as stores of value and financial assets.

Gold, in particular, can respond to changes in real interest rates, currency movements, inflation expectations, financial uncertainty, and investor demand in addition to physical supply and consumption.

Industrial Metals

Industrial metals such as copper, aluminum, nickel, zinc, and other materials are widely used in construction, manufacturing, infrastructure, transportation, electronics, and energy systems.

Their prices can therefore be sensitive to industrial activity, infrastructure spending, construction demand, mining production, inventories, and expectations for global economic growth.

Agricultural Commodities

Agricultural commodities include products such as wheat, corn, soybeans, coffee, sugar, cotton, and other crops. Livestock and related products also form part of the broader agricultural commodity markets.

Agricultural prices can be particularly sensitive to weather, harvest conditions, production costs, global inventories, transportation, trade policies, and changes in food demand.

What Drives Commodity Prices?

Commodity prices are strongly influenced by the balance between available supply and demand. When demand grows faster than production or inventories become constrained, prices may rise. When supply exceeds demand, prices can come under pressure.

Because many commodities require significant time and capital to produce, supply cannot always respond quickly to changes in demand. New mines, energy projects, or agricultural capacity may take years to develop.

Spot Markets and Futures Markets

Commodity exposure can involve both spot and futures markets. The spot price generally refers to the current market price for a commodity available for relatively immediate delivery.

Futures contracts are agreements to buy or sell a specified quantity of a commodity at a defined price and future date. They are widely used by producers and commercial users to manage price risk and by market participants seeking exposure to commodity price movements.

Futures contracts introduce additional considerations that do not apply in the same way to direct ownership of physical commodities. Contract expiration, margin requirements, leverage, and the relationship between current and future prices can all affect results.

Contango and Backwardation

Commodity futures prices do not always equal current spot prices. The relationship between contracts with different expiration dates creates what is known as the futures curve.

Contango

A market is commonly described as being in contango when longer-dated futures contracts trade at higher prices than contracts closer to expiration. Storage costs, financing, insurance, and expectations about future market conditions can contribute to this structure.

Backwardation

Backwardation generally describes a market in which near-term prices are higher than prices for later delivery. This can occur when immediate demand is strong or available inventories are relatively limited.

These conditions matter because commodity funds using futures contracts may need to replace expiring contracts with later-dated contracts. The cost or benefit of this process can influence investment returns independently of changes in the spot price.

Ways to Gain Commodity Exposure

There are several ways to participate in commodity markets, and each method can produce a different investment experience. The performance of a commodity-related stock or fund, for example, may not precisely match changes in the price of the underlying commodity.

Physical Commodities

Some commodities can be owned directly. Precious metals are a common example because they can be stored in relatively compact form compared with resources such as crude oil, natural gas, or agricultural products.

Physical ownership can involve storage, insurance, transportation, security, and transaction costs.

Commodity Futures

Futures can provide direct exposure to commodity prices without requiring investors to physically store the resource. However, futures are specialized financial instruments that can involve leverage, margin requirements, contract expiration, and substantial price volatility.

Commodity Funds & ETFs

Funds and exchange-traded products can provide commodity exposure through physical holdings, futures contracts, commodity-related securities, or combinations of these methods.

Understanding how a fund obtains its exposure is important because different structures can behave differently even when they appear to track the same commodity market.

Commodity-Producing Companies

Another approach is investing in companies involved in mining, energy production, agriculture, or other resource industries. These businesses can benefit when commodity prices rise, but their stock prices are also influenced by operating costs, debt, management decisions, production volumes, and broader equity-market conditions.

Owning shares of a commodity producer is therefore not the same as owning the underlying commodity.

Commodities and Inflation

Commodities are often discussed in relation to inflation because raw-material and energy prices can contribute directly to changes in the cost of goods and services.

Certain commodities may perform strongly during periods when inflation is rising, particularly when inflation is driven by shortages or increases in resource prices. However, the relationship is not consistent across every commodity or every inflationary period.

Commodity prices can also decline even while overall consumer prices remain elevated. Inflation sensitivity should therefore be considered a characteristic of certain commodity exposures rather than a guarantee of protection against inflation.

Commodity Cycles

Commodity markets often experience cycles because changes in supply can take significant time. When prices are high, producers may invest in additional capacity. New supply may eventually enter the market and place downward pressure on prices.

When prices remain low, producers may reduce investment and close less-profitable operations. Over time, lower production combined with continuing demand can tighten supply and contribute to another period of rising prices.

These cycles can extend over many years, particularly in industries where new production projects require substantial capital and long development periods.

Commodity Volatility

Commodity markets can experience significant price movements over relatively short periods. Because supply and demand may be difficult to adjust quickly, even modest disruptions can sometimes have a large effect on prices.

Weather events can affect agricultural production, geopolitical developments can disrupt energy supplies, and unexpected changes in industrial activity can alter demand for metals and other raw materials.

The degree of volatility differs between individual commodities and can also change significantly over time.

Key Risks of Commodity Investing

Commodity exposure introduces risks that differ in some respects from traditional stock and bond investing. The specific risks depend heavily on how the exposure is obtained and which commodity markets are involved.

Commodities and Portfolio Diversification

Commodities can respond to economic conditions differently from stocks and bonds. Resource shortages, inflation, geopolitical events, and changes in physical demand can affect commodity prices even when the drivers of traditional financial assets are different.

This can make certain commodity exposures useful when considering portfolio diversification. However, diversification benefits can vary over time, and correlations between asset classes are not fixed.

A diversified commodity allocation can also behave very differently from a concentrated position in a single commodity such as oil or gold. The underlying exposure should therefore be considered carefully when evaluating its role within a portfolio.

What to Consider When Evaluating Commodities

Commodity investing requires understanding both the underlying resource and the financial instrument used to obtain exposure. Looking only at the recent movement of a commodity's spot price may not provide a complete picture of potential investment results.

The Role of Commodities in a Portfolio

Commodities can provide exposure to a different part of the economic system than traditional stocks and bonds. They are directly connected to resources used in production, transportation, construction, agriculture, and consumption.

Depending on the market environment, commodity exposure may contribute to diversification or provide sensitivity to inflation and changes in global resource demand. At the same time, individual commodity markets can be highly volatile and difficult to predict.

The role of commodities therefore depends on the type of exposure, investment horizon, risk tolerance, portfolio objectives, and how the position interacts with other assets.

Commodities: Common Questions