What it means
With a CFD you never take delivery of the share, commodity or index. You and the provider simply settle the difference in price in cash, which is where the name comes from.
The appeal is leverage: a deposit of a few per cent of the position's face value controls the whole exposure. That amplifies gains and losses equally, so a 10% move against a position backed by 10% margin wipes out the entire deposit.
CFDs also carry a financing cost, because the provider is effectively funding the part of the position you have not paid for. That cost accrues daily on the full notional value, which is why CFDs suit short holding periods and become expensive over months.
The regulatory picture is important and varies widely. CFDs are available to retail clients in the United Kingdom, Australia and much of Europe under leverage caps, and are prohibited for retail investors in the United States, so anyone reading about them should check what applies locally.
There is one useful commercial application beyond speculation. A company holding a concentrated shareholding can use a short CFD to offset price risk temporarily without selling the underlying shares, though the tax and disclosure consequences of doing so need careful advice.
It is worth understanding who sits on the other side of the trade. The provider is your counterparty rather than an exchange, so its financial strength and its client money protections matter as much as the spread it quotes.
In practice
Real-world examples.
Example
A trader expects a mining stock to fall after a production update and opens a short CFD position of 2,000 units at $18.00. The share drops to $16.50 and the position closes with a gross gain of $3,000 before financing and commission.
Example
A fund manager wants exposure to a foreign index for two weeks ahead of a policy announcement but does not want to move cash across borders. An index CFD gives the exposure quickly, and the short holding period keeps financing costs immaterial. The position is closed the morning after the announcement.
Example
A founder holding a large stake ahead of a lock-up expiry uses a short CFD to hedge part of the position temporarily. The hedge protects against a fall in price, but the arrangement has to be disclosed and generates a tax event that surprises the founder's accountant.
Formula
Calculation
Profit or loss on a CFD = (Closing price - Opening price) x Number of units, less financing charges and commission.
An investor buys 1,000 CFDs on a share trading at $40.00, giving a notional position of $40,000, and the provider requires 10% margin, so $4,000 is deposited. The share rises to $44.00 and the position is closed after 30 days, producing a gross gain of ($44.00 - $40.00) x 1,000 = $4,000. Financing at 5% a year on the $40,000 notional for 30 days costs $40,000 x 0.05 x 30 / 365 = $164.38, leaving a net profit of $4,000 - $164.38 = $3,835.62, which is a 95.9% return on the $4,000 of margin actually committed.Case study
Seen in the real world.
Here is an illustrative case: Bramber Private Trading, a fictional one-person trading business, opened a $40,000 CFD position on a listed retailer with just $4,000 of margin. The share rose 10% over thirty days and the position closed with a net gain of $3,835.62 after $164.38 of financing, a return of nearly 96% on the deposit.
Encouraged, the fictional trader doubled the position size the following month on a similar idea. This time the share fell 11% before any stop was triggered, the loss exceeded the deposit, and the provider issued a margin call for the shortfall.
The illustrative lesson is that the arithmetic which produced a 96% gain is the same arithmetic that produced a total loss of margin plus a further amount owed. Leverage does not change the odds of being right; it changes the consequences of being wrong.
Watch out
Common mistakes.
- Treating the margin deposit as the maximum possible loss, when losses on a leveraged position can exceed the amount deposited unless the account has negative balance protection.
- Ignoring daily financing charges, which quietly erode returns on any position held for weeks rather than days.
- Assuming a CFD gives shareholder rights, when the holder owns nothing and therefore has no vote and no direct dividend entitlement.
Questions
People also ask.
Do CFDs pay dividends?
Not directly, though providers usually credit a cash adjustment to long positions and debit short positions when the underlying share goes ex-dividend.
Are CFDs available everywhere?
No, they are prohibited for retail investors in the United States and are subject to leverage limits and risk warnings in the United Kingdom, Europe and Australia.
How are CFDs taxed?
Treatment differs by country and by whether the trading is a business or an investment, so local advice is essential rather than optional.
From the founder's library
Take it further with the book.
Build your financial confidence beyond this definition. Shihan's full-length guide, Accounting Fundamentals, takes the same plain-English approach and turns it into a complete, practical playbook for non-finance managers, business owners and students - with chapter-end quiz answers and presentation slides included.
25% off with code MMHQ25, applied at checkout. Priced in USD - checkout may show the equivalent in your local currency.
View the book and save 25%