Understand it
Markets contain uncertainty. A correct process does not imply every trade will win, and a lucky profit does not justify violating a rule. Evaluate decisions using what was known beforehand: whether the signal was valid, size was in bounds, the risk limit was respected, and the exit matched the documented plan. Outcome statistics matter across many trades, but they are a different question.
A trader doubles size in frustration and wins. That profit does not make the sizing decision sound. Another trader takes a planned stop and loses; that can still be a high-quality execution.
Watch for this misconception
Grading every individual decision solely by whether it earned money.
Describe a trade that would be counted as a process success despite a financial loss.
Trading plan builder ↗Which is strongest evidence of decision quality?
Check the sources
Hypothetical educational examples. Verify current product specifications and rules before making decisions.