Commodity Futures Explained for People Who Just Buy Groceries and Fuel

Our agriculture and alternatives pages list dozens of commodity prices. Almost none of them are prices you could pay. Understanding the gap between a futures quote and a supermarket shelf is the difference between reading these pages usefully and misreading them badly.

What a Futures Contract Is

A futures contract is a standardised agreement to deliver a specified quantity and quality of a commodity at a specified place and date. A CME corn contract is 5,000 bushels. An ICE cocoa contract is 10 tonnes. A crude oil contract is 1,000 barrels delivered at Cushing, Oklahoma.

Contracts exist because producers and buyers need to lock in prices in advance. A farmer sells forward to guarantee a harvest price; a chocolate manufacturer buys forward to guarantee input costs. Speculators supply the liquidity that makes this hedging possible. Only a tiny fraction of contracts result in physical delivery; the rest are closed out before expiry.

Why the "Front Month" Matters

Quotes on this site are front-month contracts — the nearest expiry, and the most actively traded. A commodity therefore has a whole curve of prices, one per delivery month, not a single price.

When later months cost more than nearer ones, the market is in contango, typically reflecting storage and financing costs. When nearer months cost more, it is in backwardation, which usually signals immediate physical scarcity. Backwardation in a food commodity is one of the earliest signals that a supply problem is real rather than anticipated.

The Long Journey to a Shelf Price

A jump in wheat futures does not raise bread prices next week. Between the two sit milling, baking, packaging, distribution, retail margins, labour, energy and, in Europe, a VAT rate on some categories. Raw wheat is a small minority of the cost of a loaf.

Typical lags observed in consumer price data: energy passes through to pump prices within weeks, because fuel is close to a pure commodity. Food takes months, because processing and contracted supply agreements absorb and delay moves. Commodity falls also pass through more slowly than rises, a well-documented asymmetry that frustrates consumers everywhere.

Differences Between the US and Europe

The same global commodity produces different consumer experiences. European fuel prices are dominated by excise duty and VAT, so a 20% crude move translates into a much smaller percentage change at a European pump than at a US one. European food prices are influenced by the Common Agricultural Policy and by sourcing patterns, while US prices reflect domestic production and a different subsidy structure. And for a European buyer, every dollar-denominated commodity carries an embedded EUR/USD move on top of the commodity move itself.

The Commodities Worth Watching, and Why

• Crude oil (WTI and Brent). The clearest read on global industrial demand and the fastest to reach consumers.
• Natural gas. US Henry Hub and European TTF can diverge dramatically, because gas is expensive to move across oceans.
• Wheat, corn, soybeans. Weather, export policy and conflict in major growing regions drive food inflation globally.
• Coffee and cocoa. Highly concentrated production geographies make them exceptionally sensitive to weather in a handful of countries.
• Copper. Widely used as a real-time indicator of construction and manufacturing activity.
• Gold. Behaves less like an industrial commodity and more like a monetary asset, responding to real interest rates and the dollar.

Using Our Commodity Pages

Read the percentage change over a week or month rather than the hourly move; commodity noise is high. Compare related contracts — corn and soybeans, crude and gasoline — because divergence between them usually indicates something specific rather than a general market move. And remember these quotes are delayed and represent wholesale, not retail, prices.

Nothing here is investment advice. Commodity futures are leveraged instruments and are unsuitable for most individual investors.