Leverage

Leverage means controlling a position much larger than the cash you actually put up, by borrowing the rest from your broker or by using an instrument that is structured to move like a bigger position. Instead of paying the full price of an asset, you put down a fraction of it, called margin, and the broker effectively fronts the remainder.

The mechanism is simple to picture: if you have $1,000 and your broker offers 5-to-1 leverage, you can open a position worth $5,000. Any gain or loss is calculated on the full $5,000, not on your $1,000, which is why leverage multiplies both profits and losses relative to your own cash. Leverage shows up in several forms for retail traders — margin accounts for stocks, the built-in leverage of futures and options contracts, and the typically much higher leverage offered in forex trading.

The nuance that trips people up is that leverage doesn't change how much an asset moves in percentage terms, it changes how much that move affects your account. A 2% adverse move on an unleveraged position is a 2% loss; the same 2% move on a position leveraged 10-to-1 is roughly a 20% loss on your actual cash. This is also why leveraged positions can trigger a margin call — a broker demand for more cash or securities — or a forced liquidation if losses eat too far into the equity backing the position, sometimes before you'd have chosen to exit on your own.

It's also worth separating leverage from volatility. A leveraged position in a calm asset can be less risky in dollar terms than an unleveraged position in a wildly swinging one. What leverage guarantees is amplification of whatever the underlying does, not danger in isolation — the danger comes from how much amplification is stacked on top of how much the price actually moves.