Positions in both directions
CFDs allow positions to be opened based on whether you believe the market may rise or fall. Neither direction is the safer one, and being wrong costs the same in both.
Contracts for Difference allow traders to take a position on the price movement of an underlying market without purchasing the underlying asset itself.
The instrument
Opening a contract for difference is an agreement to exchange the change in an instrument's price between the moment the position opens and the moment it closes. No share, no barrel and no currency changes hands, which is why one account can reach markets that would otherwise need several.
That flexibility makes CFDs useful for accessing a wide range of markets from one trading environment – but it also means understanding leverage, margin and risk is essential.
What the product allows
CFDs allow positions to be opened based on whether you believe the market may rise or fall. Neither direction is the safer one, and being wrong costs the same in both.
Forex, Stocks, Commodities, Indices and ETFs are reached from one trading environment, each as a contract for difference, rather than through a separate account for every asset class.
Leverage can increase market exposure relative to the capital committed to a position. It can magnify losses as well as gains, making disciplined risk management essential.
The mechanics
Knowledge of how the product works should come before deciding where the market may move. Before trading CFDs, understand:
The capital that has to sit behind a position for it to stay open. It is not the cost of the position, and it is not the most the position can lose.
The difference between the price to buy and the price to sell, together with anything else charged while the position is open. A position starts behind by the spread.
Instructions to close a position at a stated price. Where available they limit exposure without removing it: a market can gap straight past the level requested.
Whether the position gains when the price rises or when it falls. Both carry the same kind of risk, and choosing a direction is not the same as reducing it.
The relationship between the exposure held and the capital committed to it. It is what turns a small movement in the market into a large movement in the account.
How far and how fast a price moves. Volatility is not a fault in a market; it is the condition a leveraged position is held in, and it is not constant.
The part that is not optional
Margin is what a position needs in order to stay open. It is not the cost of the position, and it is not the most that the position can lose.
If a market moves far enough against an open position, the margin behind it stops being sufficient and the position can be closed without your involvement. The level at which that happens is a condition of the account rather than a level you chose.
Where stop orders are available they limit exposure without removing it. A market that gaps – over a weekend, around a scheduled release, in thin conditions – can open past the level requested, and the position then closes at the price that exists rather than at the price you set.
None of this is an argument against trading CFDs. It is the reason this site puts the product before the market: a view about where a price is going is worth very little if the instrument carrying it is not understood.
Next
What distinguishes one account type from another, and the questions worth asking about the conditions attached to one.
Sizing a position, setting the level that closes it, and what to run through before an order rather than after it.
Where an order is built, the parameters attached to it, and what happens to a position once it is open.
Everything above is a property of the contract for difference itself rather than of a particular provider, and none of it changes with the account holding it. The next question is the practical one: what opening an account involves, step by step, before any position is placed.
Trading involves risk of loss. The risk disclosure is not yet published; the standardised risk warning is shown at the foot of every page.