Commodity Futures Cost of Carry and Convenience Yield Explained

The CFTC defines carrying charges, or cost of carry, as the costs of storing a physical commodity or holding a financial instrument over time.

For physical commodities, common costs include:

Those costs can make deferred futures trade above nearby or spot prices when inventory is abundant and carrying the commodity is expensive.

• financing
• storage
• insurance
• transport and handling
• other operational costs

Physical inventory can also provide a benefit.

A refinery with crude oil in storage can keep operating through a supply disruption.

A grain processor with inventory can meet production needs without waiting for future delivery.

That non-cash economic benefit is commonly called convenience yield.

CME describes convenience yield as especially important when inventories are low or supply is tight.

It can offset some or all of the cost of carry.

Assume a commodity has a current spot price of 100.

Over the relevant holding period, assume:

A simplified carry relationship is:

100 + 3 + 4 − 2 = 105.

The deferred futures price would be around 105 under those simplified assumptions before other effects.

This is an educational approximation, not a universal pricing formula.

• financing cost = 3
• storage and insurance = 4
• convenience yield = 2

Use the same spot price of 100.

Assume financing plus storage and insurance still total 7.

Now assume convenience yield is 10 because immediate inventory is unusually valuable.

The simplified relationship becomes:

100 + 7 − 10 = 97.

The deferred futures price can then be below spot under the assumptions.

That is one economic mechanism associated with backwardation.

CME's 2026 WTI research explains that tight supply can make the value of holding oil exceed storage, insurance, and interest costs.

When deferred prices are above nearby prices, the curve can be described as contango under the relevant convention.

Carrying costs can help explain that shape.

But the curve also reflects expectations, hedging demand, inventory conditions, financing, risk premia, and market structure.

Do not infer one hidden variable from the curve without checking the others.

Futures roll yield, contango, and backwardation explains the curve terminology separately.

Storage invoices and financing rates can often be measured.

Convenience yield is different.

It represents the economic benefit of physical availability and is commonly inferred from the relationship among spot, futures, and carrying costs.

That means two analysts can use different assumptions and derive different implied convenience yields.

Record the spot source, futures month, storage assumption, financing rate, and date before comparing estimates.

A calendar spread compares two futures maturities.

If near-term inventory becomes scarce, nearby contracts can strengthen relative to deferred contracts.

If inventories are abundant and storage capacity is available, deferred prices can more easily reflect carrying costs.

The spread therefore contains information about the market's term structure, but it is not a pure measurement of storage cost or convenience yield.

How to read futures calendar spread price signs explains why you must also know the product's quote convention. [!TRYMARK] Build a simplified carry bridge Start with spot 100. Add financing 3 and storage plus insurance 4. Subtract convenience yield first at 2 and then at 10. Compare the two implied deferred prices and list which assumptions are observable versus inferred.

Confirm the exact commodity and delivery location.

Use a synchronized spot reference and futures quote.

Record the futures contract month.

Estimate financing over the same holding period.

Estimate storage, insurance, transport, and handling.

State the convenience-yield assumption separately.

Check inventory and supply conditions.

Do not treat contango or backwardation as proof of a single cause.

Recalculate when storage, rates, or inventory conditions change.

This guide explains commodity carry mechanics, not a forecast of futures prices.