Leverage is the use of borrowed resources (money or financial instruments) to increase exposure to an investment or activity, aiming to amplify potential returns.
Leverage = controlling a larger position with a smaller amount of your own capital
How it works
When a company or investor uses debt instead of only their own capital:
- If returns are higher than the cost of debt, leverage amplifies profits
- If returns are lower than the cost of debt, leverage amplifies losses
So leverage increases both opportunity and risk.

Where financial leverage is used
- Corporate finance (business expansion, acquisitions)
- Investment & trading (stocks, derivatives, forex, crypto)
- Real estate (mortgages)
- Private equity & IPO structuring
Key takeaway
Financial leverage magnifies outcomes:
higher leverage = higher potential return + higher risk.
Margin is the money you deposit with a broker to open and maintain a leveraged trading position.
Margin is a security deposit, not a fee, that allows you to trade a larger position than your actual cash.
How margin works
- You deposit a small amount of capital (margin)
- The broker allows you to control a larger position
- The remaining amount is effectively borrowed from the broker

Key Margin Terms


Key takeaway
Margin enables leverage, but poor margin management is the main cause of trading losses.