Who Trades Commodities? Hedgers, Speculators and How Prices Are Set

Commodity markets have three main groups of traders: producers such as farmers, miners and oil companies who sell; consumers such as airlines, food makers, refiners and jewellers who buy; and speculators who have no use for the physical goods but trade for profit. Producers and consumers mostly hedge, locking in prices to reduce business risk, while speculators accept that risk in the hope of being paid for it. Knowing who is on the other side of your trade explains much of how commodity prices behave.

Hedgers: producers and consumers

To hedge means to take a position that offsets a risk you already have. A gold miner already owns gold that is still in the ground, so a fall in gold prices hurts it. A bakery will have to buy wheat in the future, so a rise in wheat prices hurts it. Each can use futures to reduce that risk. A futures contract is an agreement to buy or sell a fixed amount of a commodity at a price agreed today for a future date; you will study it in detail in the futures lesson.

Consumers do the opposite. An airline worried about fuel costs can buy energy futures, so a rise in fuel prices is offset by gains on the futures. A food company can buy grain futures to fix next year's input costs.

Why hedges are never perfect

The farmer sells her wheat at a local price, not at the exact futures price. The difference between the local cash price and the futures price is called the basis. It depends on local supply, transport costs and quality. If the basis changes, the hedge leaves a small gain or loss. Hedgers accept this smaller, more predictable risk in place of the much larger risk of an unhedged price swing.

Speculators

Speculators are traders who buy or sell futures purely to profit from price changes. They include individuals, hedge funds, proprietary trading firms, market makers and commodity trading advisers (CTAs), professional managers who run futures funds, many of them using trend-following rules.

Speculators matter because hedgers rarely arrive in perfectly matched pairs. On a given day, more producers may want to sell than consumers want to buy. Speculators take the other side, provide liquidity (the ability to trade quickly without moving the price much) and absorb the price risk.

Physical traders, banks and index funds

Between farmers and factories sit large commodity trading houses that buy, store, blend and ship physical goods, and use futures to hedge their inventory. Banks and swap dealers sell tailor-made hedges to companies (for example a fixed fuel price for an airline) and then hedge themselves in the futures market. Index funds and exchange-traded funds hold long futures positions for investors and roll them forward each month, which can create predictable flows around roll dates.

Governments and central banks

Some of the largest commodity decisions are made by governments:

• Central banks buy and hold gold as part of their reserves, which you will see in the gold lesson.
• OPEC+, a group of oil-producing countries, sets production targets that affect global supply.
• Strategic stockpiles, such as the US Strategic Petroleum Reserve, can be released in emergencies.
• Export restrictions can move markets overnight. For example, India restricted exports of non-basmati white rice in 2023, which pushed up rice prices in other markets.

These decisions are often political and hard to predict, which is one reason commodity prices can gap sharply on news.

How prices are actually set

Prices settle where the buyer who most needs the commodity meets the seller who most wants to sell. In the short run, both supply and demand for many commodities barely react to price: a refinery still needs crude this month, and a mine cannot double output next week. When supply and demand are both slow to adjust, even a small imbalance can require a large price move before enough buyers step back or sellers step in. This is why commodity prices can swing far more than the change in the physical balance seems to justify.

What this means for you as a trader

• You are trading against professionals. Oil companies, grain merchants and bullion banks see physical flows you will never see. Trying to out-predict them on fundamentals alone is a weak plan for most individuals.
• Rules and risk control are a realistic edge. Systematic approaches such as trend following do not need better information; they need discipline, diversification and correct position sizing.
• Positioning data is public. The US regulator publishes a weekly report showing how hedgers and speculators are positioned. You will learn to read it in the Commitments of Traders lesson.