| name | trade-journal |
| description | Use when reviewing trading performance and decisions. Covers what to record, separating process from outcome, identifying real patterns in your own behavior, and turning a review into a rule change. |
| metadata | {"category":"finance","version":"1.0.0","tags":["journal","review","process","postmortem","discipline"]} |
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
- 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.
- 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.
- Categorize by setup and by mistake — Not by outcome. "Chased an extended entry" is a category. "Lost money" is not.
- Review a sample large enough to be meaningful — Twenty trades minimum. Any five trades can be attributed to anything.
- 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.
- 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.
Examples
A trade record that permits an honest review:
## 2026-06-14 | LONG NVDA | Momentum breakout
**Written at entry, before the outcome.**
Thesis : Breaking out of an 8-week base on 2.3x average volume. Relative
strength +6% vs SPY over 63 days. Earnings are 5 weeks away.
Entry : 118.40
Stop : 112.80 (below the base low; the breakout is invalid below it)
Target : 134.00 (the measured move; 2.8:1 reward-to-risk)
Size : 340 shares. Risk $1,904 = 0.95% of equity. Within the rules.
Invalidation: A close below 112.80, or a failed breakout that closes back
inside the base.
Regime check: trend up, volatility contracting. Breakouts are favored. PASS.
Pre-trade gate: PASS (stop set, risk within limit, sector exposure 18%/30%).
---
**Written at exit.**
Exit : 113.10 on 2026-06-21. Stopped out. -$1,802 (-0.90%).
Process grade: A. The setup met every criterion. The stop was where the thesis
was invalidated. The size was correct. It was executed as
planned and it did not work.
Outcome : Loss.
Lesson : NONE. This is what a losing trade taken correctly looks like.
Do not change anything on the basis of this trade. The breakout
failed. Some do.
The review that finds the actual pattern:
Q2 review: 47 trades.
By outcome: 21 winners, 26 losers. Net +2.1%.
By process grade: 38 followed the rules, 9 did not.
The finding is in the second line, not the first:
Rule-following trades (38): +8.4% win rate 55% avg R +0.31
Rule-breaking trades (9): -6.3% win rate 22% avg R -0.70
Every rule-breaking trade shares one characteristic: it was entered within
90 minutes of closing a losing position. Seven of the nine were in a setup
graded "C" or worse. Six were oversized.
This is a revenge-trading pattern. It is not a strategy problem; the strategy
made 8.4% this quarter. It is a behavioral problem that cost 6.3%.
Rule change, effective 2026-07-01:
No new position within 2 hours of closing a losing trade. No exceptions,
no override. This is a hard gate, enforced in the pre-trade checklist,
not a resolution to be more disciplined.
Measure: count rule-breaking trades next quarter. Target: zero.
Notes
- The revenge-trading pattern in the example is close to universal among discretionary traders and is invisible without a journal — every individual instance feels justified in the moment.
- The rule change is a mechanical gate, not a resolution. "I will be more disciplined" has never worked for anyone. A rule that cannot be overridden has.
- This is educational material about trading process and review, not financial advice.
