Futures Calendar Spread vs. Intercommodity Spread Explained

A calendar spread, also called an intracommodity or intramarket spread, combines two expirations of the same futures contract.

For example, a trader might buy a deferred month and sell a nearby month.

The economic question is how the same underlying market is priced across time.

Inventory, financing, seasonality, expected supply and demand, and roll pressure can all affect the relationship.

Futures calendar spreads explained covers the basic structure.

The CFTC and CME define an intercommodity spread as a long and short position in two different but generally related futures markets.

Examples can include:

The trade is about the relationship between the two products, not just whether both markets rise or fall.

• one equity-index future versus another
• one grain versus another
• one crude-oil benchmark versus another
• an input commodity versus an output commodity

Assume two hypothetical futures, A and B.

Both have a simplified cash value of $50 per price point.

You buy one A at 100 and sell one B at 80.

Initial spread under A minus B is:

100 − 80 = 20.

Later A is 105 and B is 82.

New spread:

105 − 82 = 23.

The spread widened by 3 points.

A leg P&L:

(105 − 100) × $50 = +$250.

B short-leg P&L:

(80 − 82) × $50 = -$100.

Net:

$250 − $100 = +$150.

With equal $50 point values, 3 spread points equal $150.

The simple 1:1 example only works cleanly because both hypothetical legs have the same point value.

Real intercommodity spreads can have different:

A 1:1 contract ratio can therefore create a large directional imbalance.

Exchange-listed intercommodity spreads can specify a fixed leg ratio.

Manually constructed spreads require you to calculate the intended hedge or relative-value ratio yourself.

Do not multiply a spread-point change by one leg's multiplier unless the strategy specification supports that calculation.

• contract sizes
• quote units
• tick values
• price volatility
• economic sensitivities

A calendar spread keeps the same underlying product but changes maturity.

Its main risk is the relationship between two dates.

An intercommodity spread introduces cross-product risk.

The two markets can respond differently to weather, supply, demand, interest rates, policy, geography, index composition, or other drivers.

Correlation can also change.

A historically stable relationship is not a guaranteed hedge.

If the exchange offers the spread as a listed strategy, both legs can execute together under the strategy rules.

That can reduce the risk of getting filled in one leg while the other market moves.

If you trade the two outright legs separately, temporary directional exposure appears between fills.

Futures spread order versus separate legs explains that execution risk.

Spreads can sometimes receive lower margin requirements than two unrelated outright positions because the clearing model recognizes offsetting risk.

But the amount depends on the exact products, ratios, clearing methodology, and current risk parameters.

Do not assume every long-short pair receives a margin credit.

Futures spread margin offsets explains how offsets differ from simply adding two outright margins. [!TRYMARK] Build two spread examples First create a calendar spread using one product in two months. Then create an intercommodity spread using two different products. Record each leg, multiplier, ratio, quote convention, and the economic relationship you are actually trading.

Confirm whether the legs are the same product or different products.

Record exact contract months.

Record buy and sell direction for each leg.

Record contract multiplier and tick value for each leg.

Check whether a fixed ratio applies.

Confirm the strategy quote convention.

Check whether a listed spread instrument exists.

Reconcile leg P&L separately before calculating net spread P&L.

Check margin offsets from the current clearing or broker rules.

This guide explains spread mechanics, not a recommendation to trade relative value.