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Futures, Indices, and Commodities · Calendar Spreads and Basis

Calendar spread trading strategies

Understand how institutions express views on curve shape through calendar spreads — and why these trades have different risk profiles than outright positions.

3 min read+25 XPLesson 41 of 49
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Futures, Indices, and Commodities

Calendar Spreads and Basis

Lesson 41 of 4984%
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Lesson 41 of 49Futures, Indices, and CommoditiesCalendar Spreads and Basis

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Understand how institutions express views on curve shape through calendar spreads — and why these trades have different risk profiles than outright positions.

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Trading the shape, not the price

Once you understand the curve, you can trade the curve itself. That's what calendar spread strategies are for. Instead of betting that oil goes up or down, you bet that the gap between two contract months will change. The spread is the price; the slope is the trade. This is how most serious commodity desks express their views, and understanding why is more useful than learning the precise mechanics.

Three common trade types tell the story. A curve flattener — long the prompt month, short the deferred month — bets that backwardation is coming or contango is fading. Traders use it when they think physical supply is tightening. A curve steepener — short prompt, long deferred — bets the opposite, that contango is building. Traders use it when they think inventory is piling up. A seasonality play in natural gas — long January, short October — bets the winter premium will hold or widen. Each trade is a view on relative movement between two contract months, not on the absolute direction of gas or oil.

Wick points at a chalkboard showing a flattener as long the front month and short a later month, with the view that supply is tightening, showing how a curve view becomes a trade.FlattenerLong front monthShort later monthView: supply tightens
Wick saysTo bet supply gets tighter, a desk goes long the front month and short a later one.
A balance scale sinks on the outright side with full price risk while the spread side, whose legs offset, rises, showing why calendar spreads usually carry smaller margin.SpreadLegs offsetOutrightFull price risk?
Wick saysSpreads often need less margin because the two legs offset most price risk.

Why does any of this matter to a retail trader with a $500 account? Because the same desks running these spreads are the marginal price-setters in the curve, and their positioning shows up in spot prices days or weeks later. If you understand that hedge funds are stacking curve-flattener trades, you've effectively learned that smart money is positioning for tighter physical supply. That's a directional read you can act on through outright instruments — small futures positions or ETF exposure — without having to trade the spread itself. The strategies are out of reach for now. The signal isn't.

Wick wonders what it means when big desks add flatteners, teaching that their spread positions can hint at tighter supply before it shows up in the spot price.Desks addingflatteners? They seesupply tightening.?
Wick saysIf big desks add flatteners, they likely expect tighter supply, a clue you can watch.

Recap: calendar spread strategies — flatteners, steepeners, seasonality plays — let institutions express curve views with lower directional risk. Retail traders at $500 can't run the spreads, but reading them gives you a window into what professional positioning is saying about physical supply and demand.

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1. A trader believes oil supply is about to tighten significantly. Which calendar spread structure best expresses that view?

2. Why are calendar spreads typically required to post less margin than outright futures positions?

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