Share CFDs
Share CFDs are contracts that let you trade changes in a company’s share price without owning its shares. Also called stock CFDs or equity CFDs, they can provide exposure to rising or falling prices. Your profit or loss depends on the position size and price movement, not just the deposit required to open the trade, as ASIC’s Moneysmart explanation of CFDs makes clear.
The practical questions go beyond market direction: what will the position cost to hold, how will dividends affect it, and could company news produce a loss larger than planned? For comparisons with other underlying assets, see our guide to CFD markets.
For US readers: the ordinary OTC share CFD model is generally unavailable to retail investors. The SEC’s requirements for retail security-based swaps include an effective registration statement and trading on a national securities exchange. Access to a foreign website should not be mistaken for permission to trade.
Share CFDs Versus Buying Shares
Buying an ordinary share gives you an ownership interest in a company. Depending on the share class, that can include voting rights and entitlement to declared dividends. FINRA’s guide to stocks explains these ownership features. A share CFD does not provide that ownership: your rights arise from the contract with the provider.
With the OTC CFDs discussed here, you trade against the provider rather than acquire shares through an exchange. The provider determines its quoted prices and contractual terms, creating pricing and counterparty risks. These distinctions are covered in Moneysmart’s discussion of CFD risks.
Start with the purpose of the position. If your objective is to own part of a business, compare the contract with ordinary stock trading before treating them as interchangeable.
How a Share CFD Trade Is Calculated
Consider a hypothetical company trading at $50. You buy 200 CFD units, assuming each unit represents exposure to one share. The position has a notional value of $10,000. With a 20% margin requirement, the opening margin would be $2,000.
For this example, gross profit or loss on the long position equals:
(Closing sell price − opening buy price) × 200 units
| Closing sell price | Price movement | Gross result | Result relative to $2,000 opening margin |
|---|---|---|---|
| $52 | Up 4% | $400 profit | 20% gain |
| $48 | Down 4% | $400 loss | 20% loss |
| $45 | Down 10% | $1,000 loss | 50% loss |
These outcomes assume the position remains open until the stated exit. They exclude commissions, financing, dividend adjustments and currency conversion. The opening buy and closing sell prices already reflect the prices actually traded, so a spread should not be deducted from that calculation again.
The $2,000 margin has not bought the position at a discount. It supports $10,000 of exposure. For a short position, reverse the price subtraction: opening sell price minus closing buy price. Our guide to going long and short with CFDs covers both directions.
Margin Requirements and Account Protection
UK retail rules require at least 20% opening margin for CFDs referencing individual shares. This permits exposure of up to five times the posted margin. The same FCA rules on retail CFD margin require providers to close positions when account equity falls below 50% of the applicable margin requirement, as soon as market conditions allow.
Australia also applies a maximum ratio of 5:1 to retail share CFDs under ASIC’s CFD product restrictions. A regulatory maximum is not a suggested trading size.
The FCA also requires negative balance protection for covered retail accounts. This protects against owing more than the funds in the account; it does not protect those funds from trading losses. Professional clients can lose protections available to retail customers, as the FCA’s CFD guidance warns.
Do not confuse the margin required to open a position with the amount you are willing to lose. Review CFD margin requirements alongside your planned exit and available account cash.
The Costs of Trading Share CFDs
Check commission on both entry and exit, including any minimum charge. Share CFD commissions may be calculated as a percentage of transaction value or an amount per share. Financing can also be calculated from the full position value rather than the opening deposit. IG’s share CFD contract details provide examples of these arrangements; other providers’ terms can differ.
Suppose a hypothetical position remains worth $10,000 for ten chargeable days, with an assumed annual financing rate of 8% and a 365-day calculation basis:
$10,000 × 8% × 10 ÷ 365 = approximately $21.92
Add assumed commissions of $10 on opening and $10 on closing. The combined charge becomes $41.92 before any other costs. Against a $100 gross trading profit, that is a substantial deduction. These figures illustrate the calculation, not a current broker quote.
Also check the bid–ask spread, currency conversion charges and live market data subscriptions. Such charges appear in IG’s published CFD cost schedule. A dollar profit on a foreign share CFD also needs evaluating in your account currency, rather than treated as the same number in pounds or euros.
Estimate costs for your intended holding period and for a longer one. “I will close tomorrow” is a plan, not a financing exemption. The broader CFD trading costs guide covers the charges to compare.
Dividends and Corporate Actions
A share CFD does not pay a shareholder dividend in the usual sense. Providers generally apply a cash adjustment around the underlying share’s ex-dividend date: a credit for an eligible long position and a debit for a short position. Withholding adjustments and booking arrangements depend on the contract and market. IG’s explanation of dividend adjustments describes the distinction.
Consider a simplified example involving 200 units and a $0.50 dividend. A gross long-side adjustment would be $100. If the share price fell exactly $0.50 because of the dividend, the position would simultaneously show a $100 price loss. Before costs and withholding, those movements offset each other.
This is why opening a CFD just before the ex-dividend date is not a free-income shortcut. Actual market prices also respond to other buying and selling, so the observed price change need not equal the dividend.
Stock splits and rights issues need attention too. A split may change the number of CFD units, while a rights issue may lead to cash adjustments or temporary positions rather than the choices available to shareholders. Saxo’s corporate action procedures show how contract treatment can differ from direct ownership. Check notices before the event, including what happens to working orders.
Earnings Announcements, Trading Hours and Price Gaps
A company announcement can change the price before you have an opportunity to react. Earnings releases often occur outside regular exchange hours, when trading can be thinner and more volatile. FINRA’s warning about extended-hours trading explains why execution conditions can deteriorate during those sessions.
Before holding through an earnings report, check whether your provider offers trading during the announcement window and which orders operate then. Do not assume that trading somewhere in the underlying stock means your CFD is available on identical terms.
An ordinary stop order is not a guaranteed exit price. The SEC’s investor bulletin on stop orders explains the difference between a trigger price and the eventual execution price.
Suppose your hypothetical long position opens at $50 with a stop at $48. If the next available execution is $44, the loss is $6 per unit rather than $2. Across 200 units, that means $1,200 before charges instead of the planned $400.
Some providers offer guaranteed stops under contractual conditions and for a premium, as described in IG’s stop protection terms. Compare availability and charges through our guide to CFD stop orders and guaranteed stops.
Short Selling and Temporary Hedging
Short availability deserves a separate check. A provider may charge for stock borrowing, change that charge, or close a short position if borrowable stock becomes unavailable. IG’s borrowing and recall provisions illustrate these risks. A sell button is not a promise that a position can stay open indefinitely.
A hypothetical hedge shows another use. Suppose you own 200 shares and open a short CFD representing 100 shares of the same company. A $3 decline would produce a $600 loss on the shares and a $300 gross gain on the CFD, assuming matching price movements.
The hedge reduces exposure; it does not remove it. A rise would produce the opposite offset. Assess the combined position after financing, dividend adjustments and transaction costs, and decide in advance when the hedge should end.
Size the Position Around the Risk
Start with a cash loss budget rather than the largest position the platform permits. In a simplified example, a $150 budget and a $1.50 entry-to-stop distance imply 100 share-equivalent units before costs:
$150 ÷ $1.50 = 100 units
If you reserve $15 for estimated charges, the amount left for the planned price loss is $135, implying 90 units. Neither calculation makes the stop price certain; the gap example above still applies.
Use CFD position sizing to separate three questions: how much exposure you want, how much margin it requires, and what an adverse move could cost. Stress-test a worse exit as well as the intended one.
For each trade, write down the reason for entry, expected holding period, forthcoming company announcements and exit conditions. If the trade only looks acceptable when every assumption behaves, reduce the size or leave it alone.
Check the Provider and the Exact Contract
Verify the legal entity taking your account, its permissions and its contact details. In the UK, the FCA’s authorization-checking guidance recommends checking permission for the service offered and matching contact details to the official record. A familiar trading name is not enough.
Before entering a trade check:
- The share represented, contract multiplier, quote currency and minimum trade size.
- The margin requirement, liquidation terms and available stop orders.
- Commissions, financing, borrowing charges and dividend treatment.
- Trading hours, corporate action procedures and the handling of suspended shares.
Keep the contract specifications with your trade records. That makes it easier to distinguish an expected adjustment from a charge or execution that needs questioning.
Deciding Whether Share CFDs Fit the Trade
Do not treat share CFDs as a cheaper route to owning stocks. Evaluate them as contracts with their own funding, execution and counterparty risks. For context, ASIC reported that 68% of retail CFD investors lost money in the 2024 financial year. That figure covers CFDs generally, not share CFDs alone.
The decision should survive three checks: the product is available to you lawfully, the expected costs fit the holding period, and a worse-than-planned exit remains affordable. A correct view on the company is only one part of the trade.