How to Keep a Trading Journal: What to Track and Why
October 6, 2026 · 5 min read
A trading journal is a record of your sessions: what you traded, what happened, and how you felt. It sounds simple, and it is. It is also one of the most useful habits a trader can build, because it replaces guesses with facts. This article explains what to track, how to review it, and what kinds of patterns a journal can reveal.
Why keep a journal?
Memory is a poor trading record. Most people remember their best days and their worst days, and forget everything in between. They also tend to remember wins as skill and losses as bad luck. A journal fixes both problems by showing you what actually happened.
With a few weeks of entries, you can answer questions that matter:
- What is my real win rate, on trades and on full days?
- Am I profitable this month, or does it only feel that way?
- What do my worst days have in common?
- Do I follow my own rules, or only some of the time?
What to track
The minimum
If you track nothing else, record the date and the net result of each session: how much you made or lost. This alone lets you see your monthly result, your winning and losing days, and your best and worst days.
Useful additions
- Number of trades in the session.
- Whether you reached your target or hit your loss limit.
- Whether you followed your plan. A simple yes or no is enough.
- Your state of mind before the session: rested, tired, stressed, rushed.
- One sentence of notes: what went well, or what you would do differently.
Keep it short. A journal you fill in every day beats a detailed one you abandon after a week.
When to write in it
Record your result right after the session ends, before you do anything else. The details are fresh, and the act of writing it down is a clear signal that the session is over. This is especially important on days when you reach your daily target, because writing the result helps you stop instead of continuing.
Record losing days too. It is tempting to skip them, but they are the most valuable entries in the journal.
How to review your journal
Once a week, spend 10 minutes looking back. Once a month, look at the bigger picture. Useful things to check:
- Monthly net result: the only number that tells you if you are making progress.
- Winning days vs. losing days: your day-level win rate.
- Best and worst day: if one bad day erases many good ones, your losses are too large compared to your wins.
- Days you broke your rules: compare their results with the days you followed them.
Patterns a journal often reveals
- Overtrading: sessions with many trades tend to end worse than short, planned sessions.
- Revenge days: a loss followed by more trading the same day, ending in a bigger loss. See why to take a 24-hour break after a loss.
- Giving back profits: days that were up early and ended down because there was no clear stopping point.
- Time-of-day effects: some traders do much better at certain hours, or much worse when tired.
Tools
A notebook or a spreadsheet works. A calendar view is especially helpful, because you can see good and bad days at a glance, color-coded, and spot streaks. Martingale Tracker includes a free calendar journal: when you finish a session, you can save the result to that day with one tap and see your monthly total, annual total, win rate and best and worst days.
The bottom line
A trading journal turns your experience into information. Record the result of every session, add a few notes, and review it every week. Within a month, you will know more about your trading than any strategy video can tell you.
Risk warning: This article is for education only and is not financial advice. Trading involves a high risk of loss. Only trade with money you can afford to lose.
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