Almost every trader with years in the market agrees on one thing: a trading journal is the tool that improves results the most and the one the fewest people actually use. It isn't an indicator, it doesn't generate signals and it doesn't need special software. It's simply an honest record of what you do, why you do it and how you feel while doing it. And yet it's the difference between repeating the same mistakes for years and fixing them in weeks.
In this guide we explain what to record in a trading journal, how to turn that record into useful metrics, how to review it so it actually helps, and why it's especially valuable if you trade with a prop firm, where every broken rule costs an account.
Why a journal changes your results
Memory is a poor trading record. We remember the spectacular trades and forget the mediocre ones. We credit wins to skill and blame losses on bad luck. We believe we follow the plan when we actually break it twice a week. These are well-known biases, and we cover them in our guide to cognitive biases in trading.
A journal corrects these biases because it forces you to look at the data. When you record each trade with its reason, its result and your emotional state, patterns appear that you couldn't see before: you almost always lose on Friday afternoons, one setup makes far more than the others, or your worst trades come right after a big loss.
There's a second, subtler effect: knowing you'll have to write down the reason for a trade makes you think it through before you place it. Plenty of impulsive trades disappear on that alone.
What to record: before, during and after
A good journal isn't just a list of results. It captures three moments of every trade.
Before entry
- Instrument and direction. What you're trading and whether you're buying or selling.
- Setup. The name of your pattern or strategy: range breakout, pullback to the moving average, rejection at support. Always use the same names so you can group trades later.
- Reason. One or two sentences on why you're entering.
- Planned entry, stop and target.
- Risk in money and as a percentage of the account.
- Emotional state. One word is enough: calm, anxious, bored, euphoric, tired.
During the trade
- Changes you make. If you move the stop, take partials or add to the position, note when and why.
- Temptations. If you felt the urge to close early or move the stop against you, even if you didn't act on it.
After exit
- Exit price and result in money and in multiples of R (explained below).
- Did you follow the plan? Yes or no. This is the most important field in the whole journal.
- What you'd do differently. One lesson in one sentence.
- Chart screenshot at entry and at exit.
A simple template
You don't need a complicated app. A spreadsheet with these columns covers the essentials:
| Field | Example |
|---|---|
| Date and time | 14 Oct, 15:42 |
| Instrument and direction | EUR/USD, long |
| Setup | Pullback to 20 MA |
| Risk | 0.5% ($500) |
| Entry / stop / target | 1.0850 / 1.0830 / 1.0890 |
| Result | +2R (+$1,000) |
| Followed the plan? | Yes |
| Emotion at entry | Calm |
| Lesson | Waiting for the candle close worked |
What matters isn't the tool but consistency. A paper journal you fill in every day beats the best app you open once a month.
Measuring in R: the unit that makes trades comparable
If you only measure results in money, trades aren't comparable: a $300 win can be excellent or mediocre depending on how much you risked. That's why it pays to measure in R, where 1R is the amount you risk on a trade.
- You risk $200 and make $400: +2R.
- You risk $200 and lose $200: -1R.
- You risk $200 and lose $300 through slippage or moving your stop: -1.5R. That "-1.5R" is a warning sign the journal makes visible.
Measuring in R ties directly into the risk/reward ratio, which we cover in our risk/reward guide.
The metrics your journal gives you
With 30 to 50 recorded trades you can already calculate numbers that tell you far more than a general feeling of "it's going well" or "it's going badly".
Win rate and average R
Win rate is the share of winning trades. Average winning R and average losing R tell you how much you make when you're right and how much you lose when you're wrong. On their own they say little; together they say almost everything.
Expectancy
Expectancy is what you make on average per trade, measured in R. It's calculated like this:
Expectancy = (win rate × average winning R) − (loss rate × average losing R)
Example: you win 45% of the time, your winners average 2R and your losers 1R. Expectancy is (0.45 × 2) − (0.55 × 1) = 0.35R. On average, each trade earns you about a third of what you risk. If you risk $500, that's roughly $175 per trade over the long run.
If expectancy is negative, no amount of risk management will fix it: you need to change the strategy or how you execute it.
Results by setup
Group trades by setup name. It's very common to discover that one of your three strategies generates almost all the profit while another destroys it. Dropping the worst one can improve your results more than any fine-tuning.
Results by time and day
Do you win at the London open and lose in the afternoon? Are Mondays your worst days? Only data answers these questions. If you find a bad time slot, the fix can be as simple as not trading it.
Results when you follow the plan versus when you don't
This is the most revealing metric. Split trades into those where you followed the plan and those where you didn't. For most traders, the first group has positive expectancy and the second negative. If that's you, you know your problem isn't the strategy but discipline. We work on that in our guide to discipline.
The emotional journal
Alongside the technical data, note how you feel. You don't need a paragraph: one word before and one after each trade is enough. Over time you'll see clear links, for example that trades opened out of boredom or to win back a loss perform much worse.
A short note at the end of the day helps too: how you slept, whether something was on your mind, whether you traded in a rush. Trading doesn't happen in a vacuum, and your general state affects every decision. To go deeper, we have a guide to emotions in trading.
How to review your journal so it's useful
A journal you never review is just a file. Review is where improvement happens.
Daily review (5 minutes)
When you close the session, fill in any missing fields and answer one question: did I follow my plan today? If not, write down which rule you broke.
Weekly review (30 minutes)
Look at all the week's trades. Calculate the result in R, the share of trades that followed the plan, and the best and worst trade. Pick one thing to improve next week. One, not five.
Monthly review (one hour)
Calculate the full metrics: expectancy, results by setup, by time of day and by emotion. Compare with the previous month. This is the time for bigger decisions: dropping a setup, changing your trading hours or adjusting risk.
A weekly review in practice
To see how it works, picture a week with 14 recorded trades. The total is -1.5R: a losing week. Without a journal, the usual conclusion would be "the market was weird" or "my strategy has stopped working". With a journal, the review tells a different story:
- Of the 14 trades, 10 followed the plan and 4 didn't.
- The 10 trades within the plan add up to +2.5R.
- The 4 trades outside the plan add up to -4R.
- Three of those four were opened on Thursday after a -1R loss, with the emotion logged as "frustrated".
- The fourth was a trade without a stop that ended at -1.5R because the exit was moved.
The strategy worked. What failed was one stretch of one afternoon in which the trader tried to win back a loss. The improvement for next week is obvious and very specific: after a loss, a mandatory 30-minute pause before the next trade. None of that would have come from memory.
Screenshots: what they should show
A chart screenshot is worth a lot of words, but only if it shows what matters. For each trade, save two images:
- At entry: the chart on your execution timeframe, with entry, stop and target marked and enough context to see why you entered.
- At exit: the same chart after closing, to see what price did after you left.
Over time, reviewing dozens of screenshots of the same setup trains your eye better than any course. You'll see what the winners have in common and which details keep showing up in the losers. If you trade pure technical analysis, this part of the journal is gold. We cover it in our price action guide.
Why it matters even more at a prop firm
On a funded account, a journal has extra uses many traders miss:
- Tracking limits. Writing down your daily loss floor and distance to maximum drawdown at the start of each day prevents surprises. We explain this in our drawdown guide.
- Watching consistency. If your firm has a consistency rule, the journal shows how much your best day weighs against total profit before you request a payout. More in our consistency rule guide.
- Justifying your trades. If the risk team asks for an explanation before approving a payout, a journal with the reason for each trade is the best defence you can have.
- Keeping the same strategy. Some firms watch for strategy changes between the evaluation and the funded account. The journal helps you stay consistent.
- Learning from a failed challenge. If you fail, the journal tells you why. Without it, all you have is a feeling. We discuss this in how to recover from a failed challenge.
Common journaling mistakes
- Only recording the good trades. The journal exists precisely for the bad ones.
- Filling it in days later. By then memory has already rewritten the reasons and emotions.
- Too many fields. If each entry takes 10 minutes, you'll give up. Start with the basics and add fields only if you use them.
- Never reviewing it. The value is in the review, not the record.
- Setup names that keep changing. If you call it "breakout" one day and "range break" the next, you can't group them.
- Lying to yourself. Ticking "yes, I followed the plan" when you didn't defeats the whole exercise.
How to start today
- Open a spreadsheet with the template columns.
- Fill it in for every trade for two weeks, no exceptions.
- At the end of each week, spend 30 minutes reviewing it.
- Once you have 30 trades, calculate your expectancy and results by setup.
- Pick one improvement and measure it the following month.
Conclusion
A trading journal isn't glamorous, but it's the tool that turns experience into learning. It shows you what works, what doesn't and, above all, when you break your own plan. At a prop firm, where every broken rule costs an account, that knowledge is worth far more than any indicator. Start with a simple template, be honest with the data and review every week. Within a few months you'll have something very few traders have: evidence of what you do well. If you're looking for a firm to put it to work, the firm directory lets you compare their rules before choosing.
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