Max Loss vs Max Gain

Most retail accounts that blow up do so on a single trade or a small cluster of trades, not on a slow grind. The shape of the disaster is almost always the same: a trader with otherwise reasonable habits takes one position that violates their size discipline, the trade goes against them, and the resulting loss is multiples of their typical winner. The ratio of that worst loss to their best win is the early warning signal.

A healthy distribution has a max-loss-to-max-gain ratio at or below 1, and ideally well below 1 (largest losses smaller than largest winners). When the ratio rises above 1, the trader is implicitly running a strategy where one bad trade can erase weeks of good ones. That asymmetry compounds in the wrong direction over time.

The fix is rarely about taking fewer trades or finding better setups. It is about making the largest losses smaller, which means honoring the stop, sizing consistently, and refusing to add to losers. Each of those is its own measurable habit, and the max-loss-vs-gain ratio is the lagging indicator that confirms whether the habits are taking.