Profit factor

Profit factor quantifies a trading system's profitability by dividing its total gross profits by its total gross losses over a defined period. For example, if a system earns $1,500 and loses $500, its profit factor is 3.0. A value above 1.0 indicates profitability, while below 1.0 signifies net losses. It serves as an efficiency measure, showing how much profit is generated for every dollar lost.

For retail traders, profit factor helps evaluate a strategy's overall viability and robustness. A profit factor near 1.0 suggests marginal profitability, where trading costs like spreads and commissions could easily erode any net gain. A factor of 1.75 or higher is generally considered strong, indicating sufficient profits to absorb trading expenses and withstand drawdowns. It provides insight into a system's ability to consistently generate more profit than loss.