What is a good profit factor for a trading strategy?
A good profit factor for a trading strategy is roughly 1.5–2.0. Below 1.0 the strategy loses money; 1.5–2.0 is a robust, tradeable edge; and a profit factor far above 4.0 in a backtest is usually a red flag for curve-fitting rather than a genuine edge.
| Profit factor | Interpretation | Holds up live? |
|---|---|---|
| Below 1.0 | Losing — gross losses exceed gross profits | No |
| 1.0 – 1.3 | Marginal — thin edge, fragile to costs and slippage | Rarely |
| 1.3 – 1.5 | Acceptable — workable with strict risk control | Sometimes |
| 1.5 – 2.0 | Good — robust, tradeable edge after costs | Usually |
| 2.0 – 4.0 | Strong — but verify out-of-sample | Often |
| Above 4.0 | Suspicious — likely overfitting in a backtest | Check carefully |
To calculate the profit factor, you first calculate the total (gross) profit and total (gross) loss from your trades, then divide the total profit by the total loss.
For example, say you made 10 trades with a total profit of $500 and a total loss of $300. The profit factor would be:
Profit Factor = Total Profit / Total Loss = $500 / $300 = 1.67
This means that for every $1 you lose, you make $1.67 in profit. A profit factor greater than 1 indicates you are making more profit than loss, while a profit factor less than 1 indicates you are incurring more loss than profit.
The profit factor is a useful metric, but it does not tell the whole story. It can be influenced by the size of individual wins and losses, and it does not account for the number of trades or the risk taken. There is no single universal "good" threshold: judge a profit factor against the strategy type, the number of trades, costs, drawdown and out-of-sample results, not as an absolute number. Use it alongside other metrics for a complete picture of trading performance.
Frequently asked questions
Is a profit factor of 1.5 good?
Yes. A profit factor of 1.5 is a solid, tradeable edge for a systematic strategy — it means gross profits are 1.5 times gross losses. Just confirm it survives realistic costs and out-of-sample data, because backtested figures tend to fall in live trading.
What profit factor is too high?
In a backtest, a profit factor much above 4.0 is often a warning sign of overfitting or curve-fitting rather than a durable edge. It is not automatically disqualifying, but you should validate it out-of-sample before trusting it.
What is the difference between profit factor and win rate?
Profit factor weighs the size of wins against the size of losses, while win rate only counts how often you win. A strategy can have a low win rate but a high profit factor if its winning trades are much larger than its losing ones — which is typical of trend-following systems.
Does a good profit factor depend on strategy type?
Yes. Scalping and high-frequency strategies often run at lower profit factors (many small wins and losses), while swing and trend-following strategies can show higher ones. Judge a profit factor against comparable strategies, not in isolation.
How much does profit factor drop from backtest to live?
It almost always falls once real spread, slippage and commissions are included, so treat the backtested profit factor as an optimistic ceiling and leave headroom above 1.0.
Read profit factor alongside the Sharpe ratio, R-expectancy, Z-score and CAGR and the System Quality Number (SQN). We also publish our live trading portfolio results every month.
