After each portfolio decision, investors should record the thesis, sizing logic, time horizon, key risks, and the specific signals that would prove the decision right or wrong. Learn the practical framework, the common mistakes, and the signals that matter most for portfolio decision journaling.
After each portfolio decision, investors should record the thesis, sizing logic, time horizon, key risks, and the specific signals that would prove the decision right or wrong.
A portfolio journal turns memory into a process asset instead of a source of hindsight bias.
Without written context, it becomes difficult to distinguish a good process with a bad outcome from a bad process that happened to work once.
Keep the note short and repeatable: why the position exists, what could change the thesis, and what evidence would justify adding, trimming, or exiting.