Leverage is the practice of using borrowed capital or margin provided by a broker to increase an investor's market purchasing power. Expressed as a ratio (such as 5:1 or 20:1), leverage allows a trader to control a total notional position significantly larger than their committed cash deposit, symmetrically multiplying both profit potential and loss severity.
How it works
The broker locks a percentage of the total position value (the margin deposit) from the trader's account as collateral.
Any price fluctuations in the underlying asset are calculated against the total notional value of the position rather than just the deposited margin.
Why it matters
Leverage increases capital efficiency, allowing diversified market exposure without locking up 100% cash upfront.
High leverage radically shrinks the equity buffer, meaning even minor intraday fluctuations can trigger margin calls or total capital wipeout.
A simple market example
With $5,000 cash and 10:1 leverage, a trader opens a $50,000 equity index position. If the index gains 2%, the position earns $1,000 (a 20% return on cash). Conversely, an adverse 2% move produces a $1,000 loss (-20% of equity).
Common mistakes
Assuming high leverage increases the probability of winning trades rather than just accelerating outcomes.
Treating the broker's maximum permissible leverage limit as the recommended operating leverage for everyday trading.
Frequently asked questions
Is leverage the same as taking out an unsecured personal bank loan?
No. Trading leverage is collateralized against your account margin. If market losses fall below required maintenance thresholds, brokers may issue margin calls, restrict positions, or initiate forced closure according to platform rules.
What is the difference between nominal leverage and effective leverage?
Nominal leverage is the maximum ceiling allowed by your broker (e.g., 50:1). Effective leverage is your actual total position value divided by your real account equity.
Can you trade financial markets with zero leverage?
Yes. Standard cash accounts require you to pay 100% of the asset's purchase price upfront, eliminating debt financing and debt-driven liquidation risks.
Educational content only. Definitions describe common market usage and may vary by jurisdiction, instrument, or institution.