What does leverage do in trading?

Leverage increases the size of a position relative to available capital, making price changes more impactful on overall results. In simple terms, leverage acts as a multiplier. It takes the capital a trader has available and scales up their market exposure proportionally, allowing them to participate in price movements at a level that would not be possible with their deposit alone.

For example, a trader with $1,000 in their account using 1:20 leverage can open a position worth $20,000. Every price movement on that position is now twenty times more significant than it would be if the trader had simply invested $1,000 without leverage. A 0.5% favourable move generates a $100 profit — a 10% return on the deposited capital — while a 0.5% adverse move produces a $100 loss, equally impacting the account at the same magnified rate.

This amplification effect is what makes leverage such a central concept in trading. It transforms relatively small market fluctuations into meaningful account movements, which can work powerfully in the trader's favour but can also accelerate losses during unfavourable conditions. As a result, traders using leverage must pay close attention to their total exposure at all times, rather than focusing only on the margin deposited. Monitoring open positions regularly, understanding the specific leverage ratio applied to each instrument, and using protective tools such as stop-loss orders are all essential habits that help traders harness the benefits of leverage while keeping its inherent risks under control.