Commodities

What are commodities?

Commodities are raw materials or basic goods that can be bought and sold. They are usually the same no matter who produces them. That makes them interchangeable. A barrel of crude oil from one producer is largely the same as a barrel from another, for example.

Commodities form the base of many products. Food, metal, and energy all start as commodities. They are often grouped and priced on global markets.

Simple examples

• Energy: crude oil, natural gas, gasoline
• Metals: gold, silver, copper, aluminum
• Agriculture: wheat, corn, soybeans, coffee
• Livestock: cattle, hogs
• Soft commodities: sugar, cotton, cocoa

Why commodities matter

Commodities matter for three main reasons.

1. They power the economy. Factories, farms, and energy systems all use them.
2. They set prices for end products. If corn prices rise, food that uses corn gets more expensive.
3. They are an asset class. Investors use them to protect savings or to bet on price moves.

How commodities are traded

There are two common ways to buy and sell commodities.

Spot markets

• A buyer and seller agree on a price now.
• Delivery usually happens right away or within a short period.
• This is how physical goods are moved.

Futures markets

• Contracts say you will buy or sell a commodity at a set price on a future date.
• Futures trade on exchanges like the Chicago Mercantile Exchange.
• Most futures do not end in physical delivery. Traders close positions or roll contracts.

Other ways to invest

• Commodity ETFs and mutual funds. These track prices or futures.
• Stocks of companies that produce commodities, like miners or oil firms.
• Physical ownership, mainly for precious metals.

What moves commodity prices

Think supply and demand, with a few common influences.

Supply factors

• Weather. A drought cuts crop supply.
• Mining output. New mines add metal supply.
• Geopolitics. War or sanctions can cut oil supply.
• Production costs. Higher costs can lower supply.

Demand factors

• Economic growth. More growth raises demand for energy and metals.
• Technology. New tech can create demand for certain metals.
• Seasonal demand. Heating oil rises in winter, agricultural demand spikes at harvest.

Other forces

• Currency moves. Commodities are often priced in US dollars. A weaker dollar tends to push commodity prices up for holders of other currencies.
• Speculation and investor flows. Large funds can move markets.
• Storage and transport limits. If you cannot store a commodity easily, its price can swing more.

Risks of commodity investing

Commodities can be volatile. Prices rise and fall fast. Key risks include:

• Price swings. Weather, wars, and policy can cause big moves.
• Contango and backwardation. These are futures market shapes that can cost an investor money when rolling contracts.
• Storage and insurance costs. Physical goods cost to store and protect.
• Counterparty or delivery risk. Contracts may fail or not deliver.
• Regulatory and tax rules. Some commodity gains are taxed differently.

Keep in mind that commodities do not pay dividends or interest. Their return is solely from price change.

Common indexes and instruments

Indexes

• S&P GSCI. Heavy on energy, often used as a broad commodity benchmark.
• Bloomberg Commodity Index. Broader mix across sectors.

Instruments

• Futures contracts. The building block of commodity markets.
• ETFs. Many track futures or hold physical metals.
• Commodity stocks. Miners, oil companies, farming firms.
• Options on futures. Used to hedge or speculate with limited downside.

How investors use commodities

• Diversification. Commodities often behave differently than stocks and bonds.
• Inflation hedge. Prices of goods can rise when inflation rises, so commodities can keep value.
• Speculation. Traders take short term bets on price moves.
• Supply exposure. Companies may use futures to lock in input costs.

Practical tips

• Start with education. Learn how futures and ETFs work.
• Know your time horizon. Futures are for short to medium term, physical metal can be longer.
• Watch costs. Roll yield, management fees, and storage add up.
• Use limits and position size rules. Volatility can hit hard.
• Consider professional advice for complex strategies.

Quick summary

Commodities are basic goods used by the economy. They trade on spot and futures markets. Prices move on supply, demand, weather, and geopolitics. Investors use them for diversification and inflation protection, but they carry clear risks. Understanding futures, storage, and market structure is essential before investing.