Every piece of advice about markets eventually says keep a journal, and almost nobody explains what to write in it or what to do with it afterwards. So people start one, record thirty entries, find it tells them nothing, and stop.
The problem is usually that they recorded the wrong things. Your broker already stores what you bought and at what price. The journal exists for what the broker cannot know.
What your broker already has
Start here, because it removes most of the work people do manually.
Your broker's statements already hold the instrument, quantity, entry and exit prices, timestamps, charges, and realised profit or loss. The annual tax P&L summarises all of it. Copying any of that into a spreadsheet by hand is effort that produces nothing new.
What the broker cannot know is why. Why you entered, what you expected, what your exit plan was, and what you were thinking when you did something other than the plan.
That is the entire content of a useful journal, and it is why one that takes ten minutes a day is usually worse than one that takes ninety seconds per position and captures the reasoning.
The six fields that matter
Written at entry, not afterwards. Recording your reasoning after seeing the outcome produces a record of what you wish you had thought.
1. The setup. Which rule or condition triggered this, named the same way every time. If you cannot name it, that is itself the most useful entry you will make.
2. What you expected. Roughly where you thought it would go and over what period. Not a prediction to be graded — a record of whether your expectations are systematically wrong in one direction.
3. Where the exit is. The stop and the target, as numbers, written before entry. This field alone changes behaviour, because writing a stop you have not decided is uncomfortable enough to make you decide it.
4. Size, and how you arrived at it. Not just the quantity, but whether it came from your formula or from how the last position went.
5. How you felt. One word. Confident, uncertain, impatient, annoyed. It sounds soft and it is the field that eventually shows you the pattern — most people find their worst results cluster under one particular word.
6. Afterwards: did you follow the plan? A yes or no, filled in at exit, kept strictly separate from whether the position made money. These are different questions and conflating them is how bad habits get reinforced by good luck.
The distinction that makes a journal worth keeping
Field six is the one that does the work, so it is worth expanding.
Every position falls into one of four boxes: you followed the plan and made money, followed it and lost, broke it and made money, or broke it and lost.
The first two are both fine. A good process produces losses, and a loss taken according to plan is the system working.
The third is the dangerous box. Breaking the rules and being rewarded for it teaches you to break them again, and the market will collect on that lesson later. Anybody with a full box three has a problem regardless of what the account balance says.
The fourth is at least honest.
Without a journal you cannot separate these, because outcome is all you remember. With one, the ratio of box three to box one tells you more about your future than your profit and loss does.
Reviewing it, which is the part people skip
A journal nobody reads is a diary. Set a cadence and answer specific questions rather than reading it through.
Weekly, ten minutes. How many positions broke the plan, and why? That is the whole weekly review.
Monthly, half an hour. Group by setup name. Which ones actually made money after costs, and which ones you keep taking despite them not working? Almost everybody has one setup they are emotionally attached to that the numbers do not support.
Quarterly. Group by the feeling word, and by size. Two patterns show up reliably: results cluster badly under one emotional state, and the largest positions are frequently the worst ones because size crept up on conviction rather than on the formula.
If a review produces no changes for three months running, either you are unusually disciplined or you are not asking the questions honestly.
Keeping it small enough to survive
The most common failure is not a bad format. It is a format so thorough that it is abandoned in three weeks.
Ninety seconds per position, maximum. Six short fields. If it takes longer you will stop, and an abandoned complete journal is worth less than a sustained sparse one.
A spreadsheet is enough. One row per position, one sheet per year. No application required, and it exports for the times you want to sort it.
Do not duplicate the broker. Record a reference to the order, not the numbers you can download.
Write the entry fields before placing the order. Not after. This is the single rule that decides whether the journal is a record or a rationalisation.
If you run an automated system, the equivalent is a log line per decision with the inputs that produced it — and the same discipline applies about recording the intent, since a program's log tells you what happened but not why the rule existed.
The raw data underneath all of this comes from your broker, which is also where the statements you should not be copying by hand already live.
Let the broker keep the numbers
Your journal only needs the reasoning the statements cannot hold. Account free to open
Building a routine you can sustain, including the review cadence above, is part of our Stock Market for Beginners course at Rs 2,500 — one payment, permanent access, free demo on WhatsApp first.
We sell no tips and no signal group, we manage nobody's money, and we promise no returns. Trading carries a real risk of loss.
Disclosure: the account-opening link on this page is under Atul Shrivastava's Zerodha Authorised Person registration (NSE AP Reg: AP2516003481; Zerodha Broking Ltd. SEBI Reg: INZ000031633) and earns a revenue share. TheFinBaba is not a SEBI-registered Investment Adviser — this content is educational, not investment advice.
Frequently Asked Questions
What should I write in a trading journal?
What your broker cannot know - the setup name, what you expected, where the exit is, how you arrived at the size, how you felt in one word, and afterwards whether you followed the plan. The prices and charges are already in your statements.
Why keep a journal if my broker shows my P&L?
Because the P&L records outcome and the journal records process. Without the reasoning you cannot tell a position that lost while following the plan from one that made money by breaking it, and the second is the dangerous one.
How long should a journal entry take?
Ninety seconds at most. The usual failure is a format so thorough it gets abandoned in three weeks, and a sustained sparse journal is worth far more than an abandoned complete one.
How often should I review it?
Weekly for ten minutes on how many positions broke the plan. Monthly for half an hour grouped by setup, to see which ones actually work after costs. Quarterly grouped by emotion and by size, where the clearest patterns usually show up.
Do I need journal software?
No. A spreadsheet with one row per position and one sheet per year is enough, and it sorts and exports when you want it to. Record a reference to the order rather than duplicating numbers you can download.
Does an automated system need a journal?
It needs the equivalent - a log line per decision with the inputs that produced it. A program's log tells you what happened but not why the rule existed, so recording the intent behind each strategy version still matters.
Related Reading
- Risk management in trading
- Common algo trading mistakes
- How to read a balance sheet
- Hedging with futures in India
- Stock Market for Beginners - full syllabus
Disclaimer: TheFinBaba provides educational content only - this is not investment advice. Trading involves risk of loss.
