size creep

Slowly making your trades bigger and bigger after some wins, without meaning to.

The fuller meaning

The gradual, unplanned increase of position size, typically during a hot streak when overconfidence grows. It raises risk exactly when luck may be flattering results; rulebooks fix size by formula so it changes only by the written rule.

size creep.

Related words

anchoring · boredom trading · chasing · cognitive bias · confirmation bias · consistency · cool-down rule · discipline · disposition effect · emotion