A futures contract does not always trade at the same price as the underlying commodity or financial asset. The difference reflects time, financing, storage, insurance, expected supply and the value of having the physical asset available immediately.
In futures trading, the relationship between contracts with different expiration dates is called the term structure. When later contracts trade above nearer ones, the market is in contango. When later contracts trade below nearer contracts, it is in backwardation.
Why Contango Develops
Contango frequently appears when an asset is readily available and carrying it forward creates measurable costs. Crude oil, for example, must be stored and insured. Gold also involves storage and financing, although its physical handling is generally less complicated than that of energy products.
Suppose spot crude trades at $75 per barrel while a contract expiring six months later trades at $78. The $3 difference may reflect storage charges, financing costs and expectations about future supply. A producer or inventory holder needs compensation for keeping the oil rather than selling it today.
Interest rates also influence the curve. Higher financing costs can increase the expense of holding inventory, pushing deferred contracts further above nearby prices when other conditions remain unchanged.
Contango does not necessarily mean traders expect spot prices to rise. That is a common but misleading interpretation. The higher deferred price may simply compensate for the cost of carrying the asset until delivery.
What Backwardation Reveals
Backwardation often develops when immediate supply is tight or buyers place a high value on receiving the asset now. The nearby contract rises above later deliveries because current demand is more urgent than expected future demand.
This value of immediate availability is sometimes described as the convenience yield. A refinery facing limited crude inventories may pay more for prompt delivery because shutting down production would cost more than the premium attached to the nearby contract.
Consider crude oil trading quietly before a weekly inventory report. The data shows a much larger draw than analysts expected, while refinery demand remains strong. The nearest contract breaks above resistance as buyers compete for available barrels. Later contracts rise less because the shortage is expected to ease over the coming months.
The curve moves into deeper backwardation.
A trader watching only the front-month chart sees a bullish breakout. Someone comparing several expirations sees that the move is concentrated in immediate supply. That distinction affects whether the rally is interpreted as a short-lived squeeze or a broader repricing of future demand.
Convergence and the Cost of Rolling
As expiration approaches, the futures price generally converges toward the spot price. If a contract remained significantly above or below the cash market near delivery, arbitrage opportunities could encourage participants to buy the cheaper side and sell the more expensive one.
Traders who do not want physical delivery usually close or roll their positions before expiration. Rolling means exiting the expiring contract and entering a later one. The shape of the curve determines whether that process creates a cost or benefit.
In contango, a long trader sells the cheaper nearby contract and buys the more expensive deferred contract. Repeating that process can erode returns even if the underlying spot price remains stable. In backwardation, the trader may sell the higher-priced nearby contract and buy a cheaper later contract, potentially producing positive roll yield.
Here lies the counterintuitive result: a trader can correctly anticipate rising spot prices and still earn a disappointing return if persistent contango consumes much of the gain.
The curve can matter more than the headline direction.
Reading the Curve Before Taking a Position
Backwardation is not automatically a bullish signal, just as contango is not automatically bearish. A market can remain in backwardation while prices fall if immediate supply is still tighter than future supply. Contango can persist during a rally when carrying costs and inventory remain high.
For futures trading, comparing the front-month contract with several later expirations provides more information than studying one chart in isolation. A steepening curve may show that a shortage is becoming more urgent. A flattening curve can indicate that supply pressure is easing or that expectations are changing further along the timeline.
Contract specifications deserve attention as well. Expiration dates, settlement methods, delivery procedures and tick values vary by market. Liquidity often migrates from the expiring contract to the next active month before the final trading day, which can distort volume comparisons if the rollover is ignored.
Before entering, record the spot price, front-month price and price of the next two active contracts. Calculate the cost or benefit of rolling if the intended holding period crosses expiration. If the expected market move is smaller than the curve-related cost, the position may be directionally sensible but structurally unattractive.