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CFD Foundations · Part 1 of 12

What is CFD trading? How online CFDs work, in plain English

A CFD tracks a market's price without owning the underlying. How the contract works, what leverage does to it, what it costs, and the risks that define the product.

InnoMP Research · Education Desk Published 29 Aug 2026 · Updated 06 Oct 2026 7 min read
InnoMP Research cover art — the difference, traded
In short

CFD trading is trading a Contract for Difference: an agreement to exchange the difference between an instrument's price when a position opens and when it closes, settled in cash, with no ownership of the underlying. It is done online through a broker's trading platform, can be long or short, and is margined, so profit and loss run on the full position size while only a fraction is posted as collateral. Costs are the spread, any commission and overnight swap.

A Contract for Difference is exactly what the name says: an agreement to exchange the difference between an instrument’s price when a position opens and its price when it closes. If the difference is in your favour, you receive it; if not, you pay it. At no point do you own the thing being priced.

That one design choice — price exposure without ownership — produces everything else about the product, good and bad.

The mechanics in one example

Gold trades at 2,400. You believe it will rise, and buy a CFD covering 10 ounces.

  • Gold rises to 2,430: the difference is 30 × 10 = 300 in your favour, minus costs.
  • Gold falls to 2,370: the difference is 30 × 10 = 300 against you, plus costs.

No vault, no delivery, no ownership — a price bet, settled in cash, in either direction. That last part matters: because nothing is owned, selling first and buying back later (going short) is exactly as easy as buying first, which is a genuine structural difference from most ways of accessing markets.

A 10-ounce gold CFD bought at 2,400, with the two outcomes the example describes Price starts on the dashed entry line at 2,400 and forks. The upper branch rises to 2,430, a gain of 30 per ounce, 300 on 10 ounces, minus costs. The lower branch falls to 2,370, a loss of 300, plus costs. No metal is delivered in either case; the difference is settled in cash. 10 oz gold · bought2,430entry 2,4002,370+300 in your favourminus costs−300 against youplus costs InnoMP Research
The contract pays the difference between the opening and closing price, times the size — 30 × 10 ounces, either way. No metal changes hands; the result is settled in cash, and costs come off both outcomes.

How online CFD trading works

A CFD has no exchange of its own. It is a contract with a broker, opened and closed on the broker’s platform, which is why CFD trading is almost always online trading. The sequence is the same everywhere:

  1. Open and fund an account. The deposit is margin — collateral for positions, not the price of them.
  2. Pick an instrument and a direction. Buy if you expect the price to rise, sell if you expect it to fall.
  3. Size the position. The size, not the deposit, decides what a price move costs — the position size calculator turns a stop distance and a risk budget into lots.
  4. Manage and close. Profit or loss is settled in cash when the position closes; overnight swap is charged or paid while it stays open.
The four steps of an online CFD trade, from funding the account to closing the position Four boxes in reading order. One, fund: the deposit is margin, collateral rather than the price of the position. Two, direction: buy for a rise, sell for a fall. Three, size: the position size, not the deposit, decides what a move costs. Four, close: profit or loss is settled in cash, and swap is charged or paid each night the position is held. 1 · Funddeposit = margin:collateral, not price2 · Directionbuy for a rise,sell for a fall3 · Sizedecides what a movecosts, not the deposit4 · Closesettled in cash;swap each night held InnoMP Research
The same four steps on any CFD platform. Step three decides what a bad day costs; the deposit only decides how much exposure the account can carry.

On InnoMP the platform choice is three-way — the InnoMP APP, WebTrader in a browser, or MetaTrader 5 — compared in Choosing your platform. The contract mechanics are identical on all three.

Where leverage enters

CFDs are margined products. To hold that 10-ounce gold exposure — 24,000 of notional value — the platform requires only a fraction as collateral. The fraction is set by the margin requirement; the multiple it implies is the leverage.

What leverage does not do is change the size of the bet. The position’s profit and loss is calculated on the full 24,000 of exposure whether the margin posted was large or small. Leverage decides how much of your money is reserved, not how much is at risk — a distinction covered properly in Leverage, margin and why position sizing comes first, which is the article to read immediately after this one.

The exposure on a 10-ounce gold CFD against the margin that holds it, and what a 1% move does Three bars on one scale. Exposure: 10 ounces at 2,400, 24,000, the full width. Margin reserved at 1:100: 240, a sliver. A 1% move against the position: 240, the same sliver in red. Profit and loss is computed on the full 24,000, so one ordinary 1% move costs as much as the whole margin. exposure · 10 oz × 2,40024,000margin at 1:100240set aside as collaterala 1% move against−240the whole margin InnoMP Research
Worked example at 1:100 — a tier chosen for the arithmetic, not InnoMP's requirement for gold. Leverage decides how much is set aside, not how big the bet is: the bet is the full 24,000, so a 1% move is 240, exactly the margin.

Key takeaway The risk in a CFD is the position size, not the margin. A small deposit controlling a large exposure is the product’s power and its danger, in the same sentence — and it is why every serious introduction to CFDs is mostly an introduction to risk management.

What CFD trading costs

Three costs, one of which is routinely underestimated:

  • The spread — the gap between buy and sell prices, paid on entry
  • Commission — an explicit per-lot charge on some account types
  • Swap — nightly financing on positions held past rollover, which on multi-week holds usually exceeds the spread many times over
The spread is paid once; swap is paid every night the position stays open Cost so far against nights held. The spread is a flat dashed line: paid once on entry. Swap is a rising line that starts at zero and adds a charge every night; early in the hold it passes the spread, marked with a dot, and by the right of the chart it is several times the spread. cost so farspread · paid onceswap · every nightnights held → InnoMP Research
Illustration, not a quote. The spread is a one-off cost on entry; swap adds a charge every night, so on a hold of several weeks it can come to many times the spread. Swap can be credited on some positions — this shows the common case where it is charged. Commission, on accounts that have one, is another one-off per lot.

The full breakdown, with worked numbers, is in Spreads, swaps and the real cost of holding a position.

The risks, stated plainly

Leverage cuts both ways. Losses are computed on the full exposure. An adverse move of a few percent on a heavily leveraged position can consume the margin supporting it.

Fast markets move past orders. A stop-loss executes at the next available price — across a gap or in thin liquidity, that can be meaningfully worse than the stop level. See stop placement and weekend gaps.

A long position's stop gapped over: the order fills at the next available price, below the stop A dashed stop line. Price trades above it, then the next price appears well below it with nothing in between. The stop becomes a market order and fills at that next price, marked with a red dot. The distance between the stop and the fill is the slippage. a stop in a fast marketprice gaps past the stopstopslippagefilled at the next price InnoMP Research
A stop-loss is an instruction to close at the next available price once the stop is touched. When price jumps — a weekend open, a news release, thin liquidity — the next available price can be well past the stop.

Margin can be called. If equity falls relative to margin in use, positions can be reduced or closed by the platform — on InnoMP, forced liquidation begins at a 30% margin level during the week and 100% over the weekend. Understanding margin calls and stop-outs before meeting one is strongly recommended.

Holding costs accumulate. Financing is charged nightly, profit or not.

CFDs are speculative instruments carrying a high degree of risk, and they are not suitable for everyone. Nothing here is a recommendation to trade them — it is an explanation of how they work, which is the minimum owed to anyone deciding.

Where to go from here

The sequence that serves beginners best: what a pip is for the units, position sizing for the survival arithmetic, trading costs for the bill, and a demo account used properly for practice at zero tuition. The markets will still be there when the fundamentals are in place — they always are.

CFD basics Leverage Margin Beginner

Key facts
  • A CFD pays or charges the price difference between open and close; the trader never owns the underlying asset.
  • Because nothing is owned, going short is as straightforward as going long.
  • CFDs are margined: profit and loss are calculated on the full notional value, not on the margin posted.
  • The three costs of a CFD are the spread, commission on some account types, and overnight swap.
  • Online CFD trading runs through a broker's platform — on InnoMP the InnoMP APP, WebTrader or MetaTrader 5.

Frequently asked questions

How does online CFD trading work?

You open an account with a CFD broker, deposit margin and place orders on the broker's trading platform — a mobile app, a browser-based terminal or MetaTrader 5. Each order opens a contract whose profit or loss is the price change times the position size, settled in cash to your account balance when the position closes.

What does CFD stand for?

Contract for Difference — an agreement to exchange the difference between an instrument's price at the open and close of the position. You never own the underlying asset.

Can I lose more than I deposit trading CFDs?

CFD losses are calculated on the full position size, not the margin. InnoMP accounts include negative balance protection, with controls intended to prevent eligible clients from owing more than their account balance during extreme volatility. It remains entirely possible to lose your deposited funds, and you should not trade money you cannot afford to lose.

What is the difference between CFDs and buying shares?

A share purchase transfers ownership — voting rights, dividends, a certificate. A share CFD tracks the price only: you can trade both directions and use leverage, but you own nothing, pay financing to hold, and dividends are handled as cash adjustments.

What markets can be traded as CFDs?

On InnoMP: more than 100 instruments spanning forex pairs, metals such as gold and silver, energy products, global stock indices and individual share CFDs — all through one account, all with the same contract mechanics.

InnoMP Research · Education Desk

Trading education from first principles — position sizing, risk, market structure and the habits that keep accounts alive. Written for someone who has never opened a chart, with a diagram at every step.

Published 29 Aug 2026 · Updated 06 Oct 2026

Disclaimer: This content is provided for general informational purposes only and does not constitute investment advice, an offer, or a solicitation to buy or sell any financial instrument. It has been prepared without regard to your individual financial circumstances or objectives. Trading CFDs involves a high risk of loss.

Related notes

InnoMP Research cover art — size before leverage
Position sizing

Leverage, margin and why position sizing comes first

Leverage decides how much margin a trade ties up. Position size decides whether a losing streak ends your account. They are not the same lever, and only one of them is yours to set on every trade.

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