Stop distance versus spread: the ratio that decides survival
Posted: Fri Oct 30, 2026 7:38 am
A 2 pip stop with a 1 pip spread is a trade that starts half-dead. The spread alone consumes half the room, and normal noise handles the rest.
Think of the stop as having two parts: the cost of getting in, which is the spread, and the actual room for price to be wrong. On a 5 pip stop with a 0.5 pip spread, the room is 4.5 pips. On a 2 pip stop with the same spread, it's 1.5, a third as much.
Stops that are too tight relative to cost and noise produce a long string of small losses and a win rate that collapses. The strategy seems to fail, but the real problem is geometry.
A rule of thumb used by some scalpers: stop distance at least ten times the spread, and at least equal to a typical wick length for the timeframe.
What's the current ratio of stop distance to spread, and has widening the stop ever improved results?
Think of the stop as having two parts: the cost of getting in, which is the spread, and the actual room for price to be wrong. On a 5 pip stop with a 0.5 pip spread, the room is 4.5 pips. On a 2 pip stop with the same spread, it's 1.5, a third as much.
Stops that are too tight relative to cost and noise produce a long string of small losses and a win rate that collapses. The strategy seems to fail, but the real problem is geometry.
A rule of thumb used by some scalpers: stop distance at least ten times the spread, and at least equal to a typical wick length for the timeframe.
What's the current ratio of stop distance to spread, and has widening the stop ever improved results?