Why commodity groups do not share one macro beta

frameworkPublished 16 October 20261 min readcommodities

Key points

• Energy, metals and crops do not share one response to growth.
• Spot prices, futures curves and investor vehicles are different series.
• A supply shock and a demand slowdown can move the same commodity in opposite ways.

What is going on

Crude oil and natural gas clear through inventories, production policy and weather. Gold is often discussed against real yields and the currency used as the unit of account, while silver also has industrial uses. Copper, aluminium and nickel are tied to industrial production, construction and mine supply. Wheat, corn, soybeans, coffee and cocoa add harvest cycles and trade policy. The CME Group documents the contract structure through which many of these markets are hedged. The IMF discusses commodities as part of the global economy, not as a single ticker.

Why it matters

An investor product is rarely the spot headline. Futures can stand in contango or backwardation. Rolling a long position then adds or subtracts something that the spot chart does not show. Storage costs and seasonality are part of that gap. A stronger dollar can pressure commodities priced in dollars even when the physical balance is unchanged, and it will not do so evenly.

What to watch

Inventory reports, production decisions, weather for crops and energy, and industrial surveys for the metals that follow factories. Read the curve before reading a fund’s tracking difference. A supply shock, a demand slowdown and a weather disruption are different scenarios and should not be collapsed into “commodities are up”.

Risks

Geopolitics can remove supply. A recession can remove demand. Both can be true for different commodities in the same month. Roll costs can make a product a poor match for the inflation story attached to it. This note does not quote a price.