Risk of ruin in gold trading

Risk of ruin is the chance that an account falls to a level from which it cannot realistically recover, whether that is zero, a prop firm’s drawdown limit, or the point where the trader gives up. It depends on three things: the method’s win rate, its average win relative to average loss, and the fraction of the account risked per trade. Of these, risk per trade is the one the trader controls directly.

How it applies to gold trading

Gold’s leverage and volatility make it easy to risk far more per trade than intended. Two traders use the same method with a 45% win rate and 1:2 trades. One risks 1% per trade; over a losing streak of ten, which will happen, the account falls about 9.6%. The other risks 10%; the same streak costs about 65%, and recovery requires nearly tripling what is left. Same strategy, very different survival odds.

Risk of ruin falls sharply as risk per trade falls, which is the mathematical reason educational material repeats “1% or less”. It is also why a funded account’s drawdown limit matters: ruin is defined by the rule, not by zero.

A realistic ruin threshold for most traders is not zero but the drawdown at which they abandon the method or the account, which is often around 30% to 50%, so the calculation should use that level.

A common mistake

Calculating risk of ruin with the planned stop but ignoring slippage, correlated positions and the occasional trade taken without a stop. Those are what actually blow accounts up.

See also: Risk per trade, Drawdown, Expectancy, Stop-out.

Frequently asked questions