Full Carry in Futures Markets: A Complete Guide to Costs & Impacts

Table of Contents#

1. What Is Full Carry in Futures Markets?
2. Key Components of Full Carry Costs 2.1 Interest Costs (Cost of Capital) 2.2 Storage Costs 2.3 Insurance Costs
3. How Full Carry Works in Practice 3.1 Calculating Full Carry 3.2 Full Carry vs. Contango
4. Market Conditions That Disrupt Full Carry 4.1 Supply and Demand Imbalances 4.2 Seasonal Factors 4.3 Unexpected Events
5. Frequently Asked Questions (FAQs) About Full Carry
6. Conclusion
7. References

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1. What Is Full Carry in Futures Markets?#

Full carry is a futures market term that describes a scenario where the price difference between a near-month futures contract and a far-month contract fully accounts for all costs associated with holding the physical commodity until the far-month contract’s expiration date.

In simple terms: if a far-month contract is priced at full carry, it means buyers are paying exactly enough to cover the expenses of owning, storing, and insuring the commodity from the near-month to the far-month delivery date. This theoretical price level ensures no risk-free arbitrage opportunities exist (i.e., no trader can lock in a guaranteed profit by buying the near-month contract, storing the commodity, and selling the far-month contract).

Core Takeaways from Full Carry#

• It is the sum of three key costs: interest, storage, and insurance.
• It explains why far-month futures contracts are typically more expensive than near-month contracts.
• It serves as a baseline price, but real-world market conditions often deviate from this ideal state.

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2. Key Components of Full Carry Costs#

To understand full carry, you need to break down its three fundamental components:

2.1 Interest Costs (Cost of Capital)#

Interest costs represent the opportunity cost of tying up capital in a physical commodity instead of investing it elsewhere, or the cost of borrowing money to purchase the commodity. For example:

• If you spend $10,000 to buy 2,000 bushels of wheat at$5 per bushel, you could have instead invested that $10,000 in a savings account earning 4$200 in lost interest—this is part of the full carry cost for a six-month futures contract.
• Alternatively, if you borrowed the $10,000 to buy wheat, the interest you pay on the loan is directly included in full carry.

2.2 Storage Costs#

Storage costs cover the expenses of physically holding the commodity until delivery. These vary widely by commodity:

• Agricultural commodities: Costs for grain elevators, silos, or temperature-controlled facilities (e.g., for frozen orange juice).
• Metals: Fees for vaults or secure storage facilities (e.g., gold or silver bars).
• Energy commodities: Costs for pipelines, tanks, or storage terminals (e.g., crude oil or natural gas).

Storage costs may also include maintenance, handling, and transportation to and from storage facilities.

2.3 Insurance Costs#

Insurance protects against potential losses from damage, theft, or unforeseen events (like natural disasters). For example:

• A corn farmer insures their stored grain against flooding or pest infestations.
• A gold vault operator insures against theft or fire.

Insurance costs depend on the commodity’s value, risk of damage, and storage location. Perishable commodities (like fresh produce) often have higher insurance premiums than non-perishable ones (like copper).

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3. How Full Carry Works in Practice#

Full carry is more than just a theoretical concept—it directly impacts how futures contracts are priced and traded.

3.1 Calculating Full Carry#

The formula for full carry is straightforward:

$$\text{Full Carry Price (Far-Month)} = \text{Spot Price} + \text{Interest Costs} + \text{Storage Costs} + \text{Insurance Costs}$$

Example Calculation#

Suppose:

• Spot price of gold: $1,900 per ounce
• Monthly interest cost: $5 per ounce (opportunity cost of capital)
• Monthly storage cost: $2 per ounce
• Monthly insurance cost: $1 per ounce

For a one-month futures contract, the full carry price would be:

$$1900 + 5 + 2 + 1 = \$1908 \text{ per ounce}$$

If the one-month gold futures contract is priced at $1908, it is in full carry. If it’s priced above$1908, arbitrageurs can buy spot gold, store it, and sell the futures contract to lock in a risk-free profit. If it’s priced below, reverse arbitrage (selling spot and buying futures) may be possible (though this is harder for physical commodities).

3.2 Full Carry vs. Contango#

Contango is a market condition where far-month futures contracts are priced higher than near-month contracts. Full carry is the maximum theoretical price level for contango—when all holding costs are fully accounted for.

• Contango without full carry: If a far-month contract is pricier than a near-month one but does not cover all three components of full carry, it’s still in contango but not at full carry. For example, if storage costs are temporarily lower due to excess warehouse space, the far-month price may be higher but not reflect the full interest and insurance costs.
• Full carry as a contango baseline: When a market is in full carry, it’s in a state of "perfect" contango, with no arbitrage opportunities available.

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4. Market Conditions That Disrupt Full Carry#

While full carry is a theoretical baseline, real-world market conditions often cause futures prices to deviate from this ideal state.

4.1 Supply and Demand Imbalances#

Supply and demand shocks can override full carry costs:

• Surplus: If there’s an unexpected oversupply of a commodity (e.g., a record corn harvest), storage facilities may reach capacity. This drives storage costs sky-high, pushing far-month futures prices above full carry.
• Shortage: If a drought reduces corn supply, far-month contracts may be priced lower than near-month contracts (a state called backwardation) even though full carry suggests they should be higher. Traders are willing to pay more for immediate delivery due to scarcity.

4.2 Seasonal Factors#

Many commodities have seasonal price patterns that disrupt full carry:

• Natural gas: Winter contracts are often pricier than summer contracts not just because of full carry, but also because demand for heating spikes in winter. This extra demand can push prices far above the full carry baseline.
• Agricultural commodities: Harvest seasons may reduce near-month prices as supply floods the market, making far-month contracts relatively cheaper than full carry would predict.

4.3 Unexpected Events#

Events like natural disasters, geopolitical conflicts, or policy changes can disrupt full carry:

• A hurricane damaging oil refineries may reduce supply, pushing near-month oil futures prices above far-month ones (backwardation), even if full carry suggests the opposite.
• A new government regulation requiring more expensive storage for hazardous materials can increase storage costs overnight, altering the full carry calculation.

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5. Frequently Asked Questions (FAQs) About Full Carry#

Q1: Is full carry the same as contango?#

No. Contango is a general condition where far-month futures are pricier than near-month ones. Full carry is a specific type of contango where the price difference fully covers all holding costs. Contango can exist without full carry (e.g., if the price difference only covers partial costs).

Q2: Do financial futures (like stock index futures) have full carry?#

Yes. For financial futures, full carry includes interest costs (the cost of borrowing to buy the underlying stocks) and dividend payments (a negative cost, as dividends reduce the net carry). For example, the full carry price for an S&P 500 futures contract would be spot price plus interest costs minus expected dividends.

Q3: How do traders use full carry in their strategies?#

Traders use full carry to identify arbitrage opportunities:

• If a far-month contract is priced above full carry, they can buy the spot commodity, store it, and sell the futures contract to lock in a profit.
• If it’s priced below full carry, traders may short the spot commodity (if possible) and buy the futures contract to profit from the price convergence.

Q4: Can full carry change over time?#

Yes. Full carry costs are dynamic. For example, if interest rates rise, the interest component of full carry increases, pushing far-month futures prices higher. Similarly, if storage costs drop due to new warehouse construction, full carry prices will decrease.

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6. Conclusion#

Full carry is a foundational concept in futures markets that explains why far-month contracts often carry higher prices than near-month ones. By accounting for interest, storage, and insurance costs, it provides a baseline for fair pricing and helps traders identify arbitrage opportunities.

However, it’s important to remember that full carry is a theoretical ideal. Real-world market conditions—like supply and demand imbalances, seasonal trends, and unexpected events—can disrupt this equilibrium, leading to deviations from the full carry price. Understanding both full carry and the factors that affect it is essential for anyone looking to navigate futures markets successfully.

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7. References#

1. Investopedia. (n.d.). Full Carry. Retrieved from https://www.investopedia.com/terms/f/fullcarry.asp
2. CME Group. (2023). Cost of Carry in Futures Markets. Retrieved from https://www.cmegroup.com/education/courses/introduction-to-futures/cost-of-carry.html
3. Original source material provided for this guide: "Full Carry: What It is, How It Works, FAQs" (undated).