Leverage and CFDs
Contracts for difference and similar margined derivatives let retail traders take positions far larger than their account balance. They are the dominant retail-trading product in Europe — and the reason regulators intervened.
How leverage changes the maths
Leverage multiplies both the position and the cost of holding it. It does not improve the probability of being right. If a strategy has negative expectancy after costs, leverage increases the size of each loss and shortens the time to account depletion. This is why margin-called accounts cluster among the most heavily leveraged users.
The regulatory record
ESMA capped retail CFD leverage across the EU in 2018 specifically because of documented retail losses, and required brokers to publish their loss rates. Those disclosures still show 70-85% of retail accounts losing money. CFDs remain banned for retail investors in the United States.
Who is on the other side
Many CFD brokers act as the direct counterparty to client trades, meaning client losses can be broker revenue. That structural conflict is examined under broker economics.
What the long-run studies actually found
Five independent datasets, four countries and three decades point the same way: the share of retail day traders who make money after costs is small, and the share who make a living from it is smaller still. These are audited account records, not surveys or self-reported returns.
| Study or source | Sample | Headline finding |
|---|---|---|
| Barber, Lee, Liu & Odean | Taiwan, 1992-2006 | Under 1% of day traders earned reliably positive net profits; the top 500 covered their costs, everyone else funded them. |
| Chague, De-Losso & Giovannetti | Brazil, 2013-2015 (1,600 traders) | 3% were profitable and only 0.4% earned more than a bank teller. None who persisted improved with experience. |
| Barber & Odean, Trading Is Hazardous to Your Wealth | USA, 66,465 households | The most active fifth of accounts underperformed the market by about 6.5 percentage points a year. |
| ESMA and national regulators | EU/UK retail CFD accounts | 74-89% of retail CFD accounts lose money — a figure brokers are legally required to publish. |
| Jordan & Diltz | USA, 324 day traders | About 20% finished profitable over the period; losses were concentrated among the least experienced. |
Where the money actually goes
Before a trader beats the market, they must beat their own cost base. Every round trip pays a spread, usually a commission, and some slippage. At a realistic $8 per round trip, cost drag alone can exceed the entire account within a year.
| Trader profile | Round trips per year | Annual cost | Share of a $25,000 account |
|---|---|---|---|
| Casual — 5 trades a week | 260 | $2,080 | 8% |
| Active — 5 trades a day | 1,250 | $10,000 | 40% |
| Very active — 20 trades a day | 5,000 | $40,000 | 160% |
| Scalper — 50 trades a day | 12,500 | $100,000 | 400% |
Key terms, defined
- Day trading
- Opening and closing a position in the same instrument within one trading session, aiming to profit from short-term price movement.
- Spread
- The gap between the buy and sell price. It is an immediate, guaranteed loss at the moment a position opens.
- Leverage
- Borrowed exposure that multiplies both gains and losses. It shortens the time to ruin far more than it raises expected return.
- Slippage
- The difference between the expected fill price and the actual one, largest exactly when volatility makes trading look most attractive.
- Drawdown
- The fall from an account's peak to its trough. A 50% drawdown requires a 100% gain to recover.
- Expected value
- The average outcome of a strategy repeated many times. For retail day trading, it is negative after costs.
Frequently asked questions
Is high leverage ever an advantage for retail traders?
Only for a trader with a verified positive expectancy after costs, which the data suggests is a very small minority. For everyone else it accelerates the loss.
Why are CFDs banned in the US?
US regulators do not permit these over-the-counter leveraged contracts for retail investors, largely on investor-protection grounds.
What loss rate must EU brokers publish?
The percentage of retail investor accounts that lose money trading CFDs with that provider. Published figures typically fall between 70% and 85%.
Can day trading be learned with enough practice?
The Brazilian futures study followed traders day by day and found no improvement with experience: persistence increased losses rather than skill. Unlike chess or surgery, markets give noisy, delayed feedback, so practice does not reliably build expertise.
Do courses, signals or prop-firm challenges improve the odds?
There is no published evidence that paid education changes outcomes. Course fees, subscription costs and challenge fees are additional guaranteed costs added on top of an already negative expected value.
What is a realistic annual return for a retail day trader?
For the large majority it is negative after costs and taxes. A diversified index fund returned roughly 7-10% a year on average over long periods, with no screen time and far lower cost.
Read the whole argument
Day Trading Kills traces the leverage industry, its regulation and its outcomes in detail.