The Post-Mortem — Every Exit Gets an Autopsy

The ritual

For every closed trade, four questions: (1) Did I follow the plan? (fidelity — day 59) (2) Was the THESIS right? (analysis quality) (3) Was the EXECUTION good? (entry/exit quality vs plan) (4) What is the ONE improvement? The four answers sort every trade into: good-trade-good-outcome (ideal), good-trade-bad-outcome (variance — day 31), bad-trade-good-outcome (the dangerous one — luck masquerading as skill), bad-trade-bad-outcome (the lesson).

The dangerous quadrant

Bad-trade-good-outcome is where bad habits are born: the chased entry that "worked," the averaged-down rescue that "came back." The market pays randomness generously enough to reinforce any behavior occasionally — which is why the post-mortem grades PROCESS, not P&L. Reinforce the process; the P&L follows over samples.

The aggregation

Individual post-mortems feed the monthly review (day 38): expectancy by setup, fidelity trend, bias recurrence (day 38's diagnosis drill). The compounding asset is not any single insight — it is the RATE of insight per trade, which only a systematic autopsy produces.

Sources

• Trading in the ZoneMark Douglas
• Trade Your Way to Financial FreedomVan K. Tharp