trade-journal

Trade Journal

Purpose

Learn from your own decisions rather than from your outcomes. A profitable trade taken against your rules is a bad trade that will be repeated; a losing trade taken correctly is a good one. Without a journal, these are indistinguishable.

When to Use

• Recording a trade at entry.
• Reviewing performance over a period.
• After a losing streak, to determine whether the process or the market changed.
• Identifying recurring mistakes.

Capabilities

• Structured trade recording: thesis, plan, execution.
• Process-versus-outcome separation.
• Pattern identification across trades.
• Rule-adherence tracking.
• Converting findings into rule changes.

Inputs

• The trades: entry, exit, size, and — crucially — the reasoning at the time.
• The plan as it was stated before the outcome was known.
• Market context.

Outputs

• A record that permits honest review.
• Identified patterns, not anecdotes.
• Specific rule changes with a date.

Workflow

1. Record the thesis before the outcome — At entry, in writing: why, where the stop is, where the target is, and what would prove the thesis wrong. Written afterwards, this is a rationalization, and it will be a flattering one.
2. Grade the process, not the profit and loss — Did you follow your rules? That is a binary question with a clear answer, and it is the only one you control.
3. Categorize by setup and by mistake — Not by outcome. "Chased an extended entry" is a category. "Lost money" is not.
4. Review a sample large enough to be meaningful — Twenty trades minimum. Any five trades can be attributed to anything.
5. Look for the pattern, not the story — Are the losses concentrated in one setup? One time of day? Trades taken after a loss? These are behavioral patterns and they recur.
6. Change one rule, and date it — Then measure whether it helped. Changing five rules at once means learning nothing.

Best Practices

• The most common and most costly journaling error is writing the thesis after the outcome is known. Memory is not merely imperfect; it actively reconstructs the past to justify the present.
• Grade every trade against the rules, independently of whether it made money. A rule violation that was profitable is the most dangerous event in trading, because it is reinforced.
• Look for the revenge trade: the position taken immediately after a loss, larger than the rules permit, in a setup you would normally skip. It is nearly universal and it is visible in the data.
• Track the trades you did not take. A rule that keeps you out of losers is doing its job, and it is invisible without a record.
• Screenshot the chart at entry. Your memory of what the setup looked like will drift toward whatever justifies the outcome.
• A journal you do not review is a diary. The review is the entire point.