The short answer
Write down the decision, not only the result. For every trade record the setup by name, the stop and size you planned, the stop and size you actually used, the result in R, and whether each of your standing rules was kept. For every day record the goal before the open and a short review after the close. Once a week, count rules kept as a percentage of trades. That is the whole journal: nine fields per trade, four lines per day, one number per week. Most journal templates are a profit and loss table with a notes column, and a profit and loss table tells you what the market did. The fields below tell you what you did, which is the only part you can change on Monday.
Why keep a trading journal at all?
Because the market is a bad teacher. In a setting where feedback is fast and accurate, experience alone makes people better. Hogarth, Lejarraga and Soyer call that a kind learning environment, and they call the opposite a wicked one: feedback that is delayed, noisy or misleading, where a bad decision is often rewarded and a good one punished. A single trade is exactly that. You can break every rule you own and be paid for it by lunch.
The outcome data says the same thing from the other side. Chague, De-Losso and Giovannetti followed everyone who began day trading Brazilian equity futures between 2013 and 2015, and found no evidence that traders learned by day trading. Time at the screen did not improve results.
A journal is how you build the feedback the market does not give you. It separates the decision from the outcome, so a rule kept on a losing trade is recorded as a rule kept.
Does a trading journal actually work?
The honest answer has two halves. Nobody has run a controlled trial showing that journaling makes traders profitable, and any page that says otherwise is selling something. What has been tested, many times, is whether writing down progress toward a goal helps people reach it. Harkin and colleagues pooled 138 experimental studies with 19,951 participants and found that prompting people to monitor their progress did promote goal attainment. Two details from that analysis matter for a trader. The effect was larger when the information was physically recorded than when it was only noticed, and larger again when it was reported or made public.
So the evidence supports three habits: monitor the behaviour you want to change, write it down, and show it to someone. It does not support the idea that a journal finds you an edge.
What to write for every trade
Nine fields. The first five are written before or at the entry; the rest after the exit.
| Field | Example | Why it is there |
|---|---|---|
| Setup, by name | Opening range break, long | A trade with no named setup is the first thing to count |
| Conditions that held | 3 of 4 | Makes "was that an A setup" a number |
| Planned stop | 4,512.00 | The decision, fixed before the outcome |
| Planned size | 2 contracts | Size chosen from the stop, not from the last trade |
| Planned or unplanned | Planned | Unplanned trades get their own total at the end of the week |
| Actual stop and size | Stop moved to 4,508.00 | The difference from the plan is the most important field |
| Result in R | −1.4R | Comparable across days and account sizes |
| Rules kept | Stop moved: no. Size: yes. Limit: yes | The count the weekly review is built on |
| One tag | Moved stop | From a fixed short list, so it can be counted |
Result in R means the result divided by what you planned to risk. A trade that was meant to risk $200 and lost $280 is −1.4R, and that number says something that −$280 does not: the stop did not hold. The arithmetic is worked through in risk management for day traders. The free loss budget and position size calculator does the division before the entry, which is where the planned stop and planned size come from.
Keep the tag list short and fixed. Eight tags you reuse beat forty you invent, because the review depends on counting them.
What to write for every day
Four lines, two before the open and two after the close.
- Before: the one thing you are working on today. One, not five.
- Before: the day's limits. The loss budget, the number of trades, and how many losses in a row end the day.
- After: did the limits hold. Yes or no for each.
- After: one sentence on the trade you would take back, and what the rule is that it broke.
Write the after lines on the day. A review written on Saturday is written by someone who no longer remembers what 11:40 felt like.
How do you review a trading journal?
Weekly, at a fixed time, with the platform closed. Start with one number: rules kept as a percentage of trades. Then results in R by setup, then the tag that appeared most, then the worst day. Choose one change for next week. The full method, including how many trades it takes before the numbers mean anything, is in how to learn to trade properly, and the case for judging the week on those numbers rather than on money is in process over profit.
Then show the week to someone. That is the part of the research most traders skip, and it is the part with the larger effect.
Why do most trading journals get abandoned?
Three reasons, in the order they usually arrive.
Typing. If every fill has to be entered by hand, the journal becomes a clerical job, and it is dropped in the first busy week. Fills should come from the broker on their own, or from an export, so that your part is only the decision.
Bad days. People look at their accounts less when the news is bad. Karlsson, Loewenstein and Seppi named this the ostrich effect after finding that investors checked their portfolios less often in falling markets. The journal version is the blank row on the worst day of the month, which is the row that mattered.
No consequence. A journal that only records is a diary. It starts to change behaviour when a number from it decides something: size stays where it is until rules kept is above a line you chose, or the day ends at the limit you wrote down that morning.
Where Degen Pro fits
Degen Pro is a Mac app for Interactive Brokers, and its journal is built on the fields above. Options fills arrive from Interactive Brokers as they happen and futures come in from a Tradovate or TradingView export, so the typing is not yours to do. Each trade is graded on setup, execution and risk, marked for rules kept and whether it was planned, and tagged for what went wrong and what you did right. Setups are written as conditions, must be true, makes it better, stand down, and each trade is scored against its setup. The day gets a report card graded on process, not money, and a review the app writes from the record; the week gets a card with rules kept, grades and R and no dollar figure, made to share with a mentor or a pod. It gives no signals and makes no claim about your results. It needs a Mac; without Interactive Brokers the journal, the limits and the grades still work from an export. A spreadsheet with the nine fields above, filled in every day, does the same job for nothing, and is the right place to start if you are not sure you will keep it up.
Start with tomorrow's first trade
Copy the table. Before the first entry tomorrow, fill in the first five rows. After the exit, fill in the rest. Do that for twenty trading days before you change anything about how you trade, and then count.
None of this is investment advice. Trading involves risk of loss, and a journal does not change that. It only makes it visible.