Profit Factor

What does profit factor mean?

Profit factor compares the total winning amount with the absolute total losing amount in one defined sample of closed trades.

Profit factor = total winning amount ÷ absolute total losing amount

The ratio summarises the size relationship between the two totals. It does not show when the wins and losses happened or whether the trades followed the plan.

Fictional 20-trade XAUUSD example

Use the same fictional sample as the win-rate definition:

• 8 wins × $180 average win = $1,440 total winning amount.
• 12 losses × $80 average loss = $960 total losing amount.

$1,440 ÷ $960 = 1.50 profit factor

The recorded results in this fictional sample already include its stated costs. The 1.50 describes these 20 trades only. It is not a universal target or proof of a good strategy.

How to read the number

• Above 1: the winning total was larger than the losing total in the selected sample.
• Equal to 1: the two totals were equal before any excluded costs.
• Below 1: the losing total was larger than the winning total.

These statements describe the selected records. They do not predict the next period.

What if the sample has no losing trades?

If the total losing amount is zero, the formula cannot produce a normal finite ratio. A platform may show infinity, a very large value, a blank, or another special result. Check the platform's reporting method instead of treating that display as proof of exceptional performance.

A no-loss result can also come from a very small sample. Keep the trade count and dates visible.

What profit factor does not show

• Sequence: it does not show losing streaks or when drawdown occurred.
• Sample concentration: one unusually large win can move the ratio sharply.
• Excluded costs: a gross report may not include every spread, commission, swap or fee.
• Rule adherence: a positive sample can still contain trades that broke the plan.
• Future performance: historical profit factor does not guarantee the ratio will continue.

Compare like with like

Use the same dates, closed trades, currency, grouping method and cost treatment when comparing two periods. Read profit factor beside trade count, average win, average loss, expectancy, drawdown and the equity curve.

The trading performance metrics guide connects these numbers using this same fictional XAUUSD sample.