Leverage allows traders to open positions larger than their actual account balance by borrowing capital from a broker. In CFD trading, leverage ratios can range widely depending on the asset class, the broker, and the regulatory jurisdiction — with major forex pairs typically permitted higher leverage than volatile assets like individual stocks or cryptocurrencies.
The appeal is straightforward: a smaller deposit can control a much larger position, magnifying potential returns relative to the capital committed. A 10:1 leverage ratio, for example, means a $1,000 deposit can control a $10,000 position, meaning a 1% favorable move generates a 10% return on the deposited margin.
However, leverage is a double-edged sword. Just as it magnifies profits, it magnifies losses at the same rate — and in fast-moving markets, losses can accumulate quickly enough to trigger a margin call, where the broker requires additional funds to keep a position open, or automatically closes positions to prevent the account balance from going negative. During periods of extreme volatility, such as major news events or flash crashes, price gaps can cause losses to exceed what a trader anticipated even with a stop-loss in place.
Because of these risks, many regulators — including in the EU and UK — have capped leverage for retail traders on certain instruments, often to ratios as low as 30:1 or 2:1 depending on the asset. Traders considering leveraged products should calculate worst-case loss scenarios before opening a position, not just potential upside, and should never risk capital they cannot afford to lose. Understanding margin requirements, maintenance margin levels, and how a broker handles margin calls is essential groundwork before trading with leverage.
