Regret is a process problem
Leaving money on the table stings, but chasing the exact top blows up more accounts than early exits ever did. This tool quantifies the miss so you can design a scaling plan instead. Build that ladder on the take-profit ladder calculator.
Pricing both regrets before you exit
Every exit has two possible regrets: selling before a further rally (regret of action) or watching an unbanked gain evaporate (regret of inaction). They're measurable — sell half at +40% and a further 30% rally "costs" you 15% of foregone gain; but a retrace to +10% "saves" you 15% of preserved profit. Most traders only ever price one side, and it's whichever hurt them most recently.
The asymmetry the math exposes: giving back an unrealized +40% costs real money you demonstrably had; missing an additional +30% costs a counterfactual you might have exited before anyway. Weighting evaporation about twice as heavily as missed upside is not cowardice — it matches the realized-vs-hypothetical distinction and the compounding damage of round-tripped gains.
Partial exits are the tool that shrinks both regrets simultaneously: banking half converts the worst case from "lost it all back" to "kept half," while the runner keeps the rally scenario alive. The all-in/all-out exit is the maximum-regret geometry, whichever way price goes next.