A Contract for Difference (CFD) is a financial derivative agreement between a trader and a broker. The two parties exchange the difference in an asset’s price between the time the position is opened and when it is closed. This allows you to speculate on rising or falling prices without buying or owning the underlying asset.
CFD trading provides access to global financial markets, including shares, indices, Forex and commodities, using leverage. Leverage reduces the amount of capital needed to open a position, but it can increase both potential profits and potential losses. Before trading leveraged products, it is important to understand how CFD contracts work, how much margin is required and what fees may apply while a position remains open.
Quick Takeaways
- A CFD is a derivative contract that allows you to speculate on an asset’s price movements without owning the underlying asset.
- You can trade in either market direction by opening a long position if you expect prices to rise or a short position if you expect them to fall.
- Leverage allows you to control a larger position with a smaller deposit, but your potential loss is based on the full nominal value of the position.
- CFD trading costs can include the spread, commission, overnight fees and losses caused by slippage.
What Does CFD Stand For?
CFD stands for Contract for Difference. It is a cash-settled agreement between two parties to exchange the difference between an asset’s opening and closing price.
When people ask what CFDs are, the key point is that they are derivative products. No physical delivery of shares, currencies, gold or other assets takes place.
When you buy physical shares, you pay the full purchase price and receive legal ownership. Depending on the type of shares, this may include voting rights and direct shareholder registration.
By contrast, when you open a CFD position, you enter into a bilateral agreement with your CFD broker. Your result depends on how the price moves. If the market moves in the direction you predicted, the broker pays you the difference. If it moves against you, you pay the difference to the broker.
Because CFDs are settled in cash, they can provide retail traders with exposure to markets that may otherwise be difficult or costly to access directly, such as broad share indices or physical commodity futures.
How Does a Contract for Difference Work?
A Contract for Difference tracks the price of an underlying market in real time. You enter the trade at the broker’s quoted buy or sell price. When you close the contract, your profit or loss is calculated from the difference between the opening and closing prices.
CFDs allow you to take two main types of position:
Going Long
You open a long, or buy, position if you expect the asset’s price to rise. You make a profit if you close the contract at a higher price than your entry level. You make a loss if the price falls.
Going Short
You open a short, or sell, position if you expect the asset’s price to fall. You make a profit if you close the contract at a lower price than your entry level. You make a loss if the price rises.
In practice, many traders move from physical share trading to CFDs because short selling is more straightforward. However, they may underestimate how quickly a sharp market rise can affect a short position during a strong upward trend.
Illustrative Long Position Example
Imagine that you decide to trade a major share index priced at 15,000 points.
- Position setup: You buy one CFD contract at 15,000 points.
- Market movement: The index rises by 100 points to 15,100.
- Closing the trade: You close the position by selling the contract at 15,100.
- Gross result: The 100-point difference represents your gross profit before trading costs.
Had the index fallen by 100 points to 14,900, you would instead have made a gross loss of 100 points.
In each trade, your broker acts as the counterparty responsible for executing and settling the agreement against its quoted market prices.
CFD Trading vs Physical Asset Ownership
Understanding the structural differences between trading CFDs and buying the underlying asset can help you see how leverage, ownership rights and holding costs affect your risk.
Feature | Contract for Difference (CFD) | Physical Asset Ownership |
|---|---|---|
Asset ownership | Derivative exposure; you do not own the asset | Direct legal ownership |
Leverage available | Yes, subject to regulatory limits | Usually no; the full purchase price is required |
Short selling | Straightforward through a sell position | May be restricted or require share borrowing |
Overnight fees | Usually charged on leveraged positions held overnight | No leveraged funding cost when the asset is fully paid for |
Shareholder rights | No voting rights; dividend adjustments may apply | Voting rights and shareholder status may apply |
Primary use | Short- to medium-term speculation and hedging | Long-term investing and wealth building |
To understand how these features fit into a broader market approach, read our main guide on what is CFD trading.
The True Cost of CFD Trading
The cost of trading a CFD can involve several separate charges beyond the quoted entry price. Focusing only on advertised “zero commission” claims may overlook the combined effect of holding fees and market execution costs.
A realistic assessment of CFD trading should account for four main cost components.
The Spread
The spread is the difference between the buy, or ask, price and the sell, or bid, price. You pay this cost when you enter a trade, which means the position usually begins with a small unrealised loss.
Commission
Index and Forex CFDs often include the broker’s charge within the spread. Share CFDs, however, may carry a separate commission on each transaction, such as 0.10% of the total nominal position value or a flat fee.
Overnight Fees
Leverage involves the broker financing part of the total position value. If you keep a position open beyond the daily rollover time, an overnight funding charge, sometimes called a swap fee, may apply.
Slippage and Execution Costs
In fast-moving or illiquid markets, your order may be filled at a worse price than the one you requested. This difference is known as slippage and can add to the total cost of the trade.
CFD Cost Example: A Multi-Day Position
Suppose you hold a share CFD position with a nominal value of £10,000 for 10 business days.
- Spread cost: £5 on entry
- Commission: £10 in total, comprising £5 on entry and £5 on exit
- Overnight fees: £2 per night × 10 nights = £20
- Total realised cost: £35
If the position produces a gross market gain of £50, the net profit falls to £15 after these costs are deducted.
For swing traders who hold positions for longer periods, overnight financing charges can significantly reduce gains from favourable price movements.
Key Risks and Margin Mechanics
Trading CFDs carries substantial financial risk because of leverage and margin requirements. Leverage reduces the amount of capital needed to open a position, but your profit or loss is calculated against the full nominal value of the contract rather than your initial deposit.
When trading on margin, you need to understand several important thresholds.
Initial Margin
Initial margin is the minimum deposit required to open a leveraged position. For example, a 5% margin requirement allows you to control a position worth 20 times your deposit, which is equivalent to leverage of 20:1.
Maintenance Margin
Maintenance margin is the minimum level of equity that must remain in your account to keep your positions open.
Margin Calls and Liquidation
If market movements reduce your account equity below the broker’s maintenance margin requirement, the broker may ask you to deposit additional funds.
If you do not add enough funds, the broker’s automated risk-management system may close some or all of your positions. This is sometimes known as a stop-out or forced liquidation.
New traders often assume that a stop-loss order guarantees their exit price. However, during major economic announcements, price gaps can move through stop levels and cause the position to close at a worse price because of slippage.
Under the UK Financial Conduct Authority (FCA) and European Securities and Markets Authority (ESMA) rules for retail traders, brokers must provide negative balance protection (see the FCA's CFD rules for details). This means that retail clients cannot lose more than the money available in their trading account. However, sharp price movements can still wipe out the available account equity within seconds if excessive leverage is used.
Conclusion: Is CFD Trading Suitable for You?
A Contract for Difference is a flexible financial product mainly used for short-term speculation, hedging and active trading across global asset classes. Its main features include access to rising and falling markets, lower initial capital requirements through leverage and exposure to a wide range of underlying assets.
However, these features come with greater complexity and a higher risk of loss.
CFDs are generally unsuitable for long-term buy-and-hold strategies because overnight financing charges can accumulate over time. Anyone considering CFD trading should use leverage cautiously, account for all trading and holding costs, and follow a clearly defined risk-management plan.
FAQ
What is the basic concept of a CFD?
A contract for difference (CFD) is a bilateral agreement between a trader and a financial provider to exchange the difference in an asset's price from when a position opens to when it closes. Because it is a derivative, settlement occurs purely in cash without any physical exchange or ownership of the underlying asset.
How do you make money from a contract for difference?
You generate a gross profit from a CFD if the market moves in the direction you predicted. Going long yields profit if the market price rises above your entry point, whereas going short yields profit if the price falls below your entry point. Your net profit equals the price difference minus total trading costs.
What is the main difference between CFDs and buying actual shares?
Trading share CFDs provides leveraged derivative exposure to price movements without delivering actual stock, voting rights, or physical ownership. Traditional share investing requires paying the full market value upfront, allowing you to hold the asset indefinitely without paying daily leveraged financing fees or facing automatic liquidation.
Can you lose more than your initial deposit trading CFDs?
Under UK FCA and European ESMA regulations, retail CFD accounts are protected by mandatory Negative Balance Protection, which prevents account balances from falling below zero. However, rapid market movements can still wipe out your entire deposited balance, and professional clients without negative balance protection remain liable for deficits.
What are the main costs involved in CFD trading?
The total cost of trading CFDs includes four distinct friction points: the bid-ask spread on entry and exit, transaction commissions (common on equity CFDs), overnight swap fees for holding leveraged capital past the daily cutoff, and potential price slippage during volatile execution periods.