What Is a Trading Journal? How to Keep One

What is a trading journal? It is a written record of your trades and the reasons behind them. It is not your broker statement. The statement tells you what happened. A journal tells you why you did it, what you were thinking, and whether you followed your own plan.

This guide answers the basic question of what a trading journal is, then covers what goes in it, how to keep one without it turning into homework, and how to review it so it changes your results. It is written for futures and prop firm traders, from a first evaluation to a funded account. All dollar figures are USD and every example is hypothetical, not a record of real results.

What is a trading journal, in plain terms?

A trading journal is a log you fill in for every trade, plus a short review you do on a schedule. Each entry captures the facts (what, when, how big, what result) and the decision (why you entered, whether it matched your plan, how you felt). The log is the raw material. The review is where the value comes from.

Most traders already have the first half. Your platform records every fill. What it cannot record is intent. Two trades can show the same entry, exit and profit, and one was a clean plan-following setup while the other was a lucky impulse. Only the second column, the reason and the state of mind, tells them apart.

Search the topic and you will find the same advice almost everywhere: log trades consistently, write down your reasoning and emotions, and review regularly. That is correct. It is also incomplete, because it rarely says what to do when the review shows you the same mistake for the fifth week running. We cover that below.

Why do traders keep a journal at all?

Because memory is a poor record keeper. After a session you remember the big winner and the painful loser. You forget the six small trades in between, including the ones you took out of boredom or frustration.

A journal gives you three things memory cannot:

• An honest sample. Every trade is in the record, not only the memorable ones.
• Patterns. Which setups pay, which hours hurt, which situations trigger your worst decisions.
• A cost for each habit. Once mistakes are tagged, you can add up what each one cost you in dollars. "I overtrade sometimes" is vague. "Trades past my daily cap lost a net $1,150 this month" is a decision you can act on.

A journal does not make you profitable by itself, and no article can promise that. What it does is replace guessing with evidence about your own behavior.

What does a trading journal actually record?

There are two layers. Keep the first one short and automatic where you can, and spend your effort on the second.

For futures, log the specific contract, because each one has its own tick value and volatility. Record actual fill prices and not your planned levels, since the gap between them is slippage and it affects your real risk-reward. Record size every time, because size changes are where many account-ending mistakes hide. If you want the full field list with futures detail, see what to track in a trading journal for futures traders.

The one field most journals miss

Add a simple yes or no: did this trade follow my plan? Then, for every "no", add a one-word mistake tag such as revenge, oversized, early exit, moved stop or off-plan setup. This single field turns a diary into a measuring tool. Without it you can see that you lost money. With it you can see that the losses came from breaking your own rules.

What should you write in a trading journal entry?

Keep each entry to about a minute. Long entries get abandoned. A workable template has five lines:

1. Setup: the name of the pattern or play you were trading.
2. Plan: where your stop and target were before you entered.
3. Result: the P&L, ideally also in R (your result divided by the amount you risked).
4. Plan check: followed the plan or not, and a mistake tag if not.
5. Note: one specific sentence. "Entered early because I was afraid of missing the move" is useful. "Felt anxious" is not.

Specific beats long. A note you can search for later, like "chased the open", becomes a category you can count. If you want ready-made columns, the trading journal template for futures traders lays them out with formulas for Excel and Google Sheets.

How do you keep a trading journal? A simple routine

Most journals fail because of the routine, not because of the format. Here is a routine that is hard to quit:

1. Before the session (two minutes). Write your plan: the setups you will take, your max trades for the day and the point at which you stop.
2. During the session (seconds per trade). Tag each trade as it closes, even if you only write the setup and a plan check. Memory fades fast.
3. After the session (five minutes). Fill in the notes while the emotions are still fresh. Add a screenshot of any trade you want to study later.
4. Weekly (fifteen to twenty minutes). Review the numbers and the tags. Pick one thing to change next week.
5. Monthly (thirty minutes). Step back. Which setup is carrying you, which habit is costing you, and is any rule worth changing?

The timings above are a practical starting point, not a rule from research. Adjust them to how many trades you take. The point is that logging is quick and the longer thinking happens on a schedule.

Which format is best: notebook, spreadsheet or app?

All three work. The right one is the one you will still be using in three months.

A common path is to start with a spreadsheet for a few weeks so you learn what you actually want to track, then move to an app if the manual entry becomes the thing that stops you. If cost is the worry, our guide to a free trading journal covers what free really means and which limits to check before you commit.

If you use an app, import a real file from your platform during the first week and check that every trade, size and timestamp came through correctly. A journal built on wrong data teaches wrong lessons.

How do you review a trading journal?

Reviewing is the part people skip, and it is the part that matters. Logging without review is bookkeeping. A review has two jobs: find patterns and decide on one change.

Start with the plan-check tags, not with the P&L. Count how many trades broke your plan and add up their dollar result separately from the plan-following trades. Here is a hypothetical month to show what that looks like:

In this example the trader's plan was profitable. The month lost money anyway, because 19 trades that broke the rules cost $2,690. The fix is not a new strategy. It is a rule that stops the three behaviors. That is the insight a statement alone could never give you, and it is why the best question in a review is "which mistake cost me the most this month?"

After the numbers, read your notes for the worst three trades. Ask what was happening just before you entered and what you would do differently. Then write one specific change for the coming week, for example "no new trade within 30 minutes of a loss". One change at a time is easier to test than five.

What patterns should you look for?

Over a few weeks a good journal starts showing the same families of mistakes. These are the ones that tend to matter most for futures traders, and each has a deeper guide:

• Revenge trading, entering straight after a loss to get the money back. See how to stop revenge trading in futures and why you keep revenge trading.
• Overtrading, taking more trades than your plan allows. See overtrading in futures.
• Cutting winners early, leaving profit on the table because the open gain feels fragile. See why you cut winners early.
• Moving your stop, widening it mid-trade so a loss never feels final. See moving your stop loss.
• Losing streak behavior, where a normal run of losses turns into a spiral. See what to do after a losing streak.

You do not need to track all of them on day one. Pick the one you suspect is costing you the most, tag it for two weeks and see what the numbers say.

How does a journal help on a prop firm account?

Evaluation and funded accounts add rules that leave little room for error, and rules differ by firm and change over time, so always read your own firm's current rules on its own website. What a journal adds is a record of how you behave near those limits: do you trade bigger after a loss, do you take extra trades when you are close to a target, do you break your own daily stop. Those are habits, and habits show up in the journal long before they show up as a failed account.

Setting your own limits a little tighter than the firm's, and logging every time you break them, gives you early warning. A journal cannot stop you placing a trade. It can show you, in dollars, what breaking your rules costs.

What mistakes make a journal useless?

• Logging too much. Twenty fields per trade means you will stop by week two. Start with the five lines above.
• Logging only losers. You need winners too, so you can see what your best trades have in common.
• Writing vague notes. If you cannot count or search a note, it will not help you.
• Never reviewing. A journal you never open is a diary.
• Judging yourself. The goal is evidence. Treat a mistake as a data point, not a verdict.
• Changing too many things at once. You will not know what worked.

Key takeaways

• A trading journal records your trades and the reasons behind them, so it captures decisions that a broker statement cannot.
• Keep two layers: trade facts (often importable) and decision notes (only you can write).
• Add a "followed the plan?" tag and a one-word mistake tag. This is the field that turns a log into a measuring tool.
• Keep entries to about a minute, review weekly and monthly, and change one thing at a time.
• Use the format you will actually keep up: notebook, spreadsheet or app all work.
• Put a dollar figure on each mistake pattern. It shows where the money really goes.

Frequently asked questions

What is a trading journal?

A trading journal is a record of every trade you take plus the reasoning, plan and emotions behind it, reviewed on a regular schedule. It differs from a broker statement because it records why you traded, not only what happened.

What should I include in a trading journal?

At minimum: date and time, contract or instrument, direction, size, entry, exit, P&L, the setup, your planned stop and target, whether you followed your plan and a one-line note. Add a mistake tag whenever you break a rule.

How often should I update my trading journal?

Tag each trade soon after it closes while you remember it, and write fuller notes after the session. Do a short review weekly and a longer one monthly. Frequent short updates beat long entries you skip.

Does a trading journal actually help?

It helps when you review it and act on what you find. It will not make a strategy profitable, and there is no guarantee of results. What it does is show your real patterns, so you change habits based on evidence and not on how the last trade felt.

Is a notebook, spreadsheet or app better?

None is best for everyone. A notebook is quick, a spreadsheet is flexible and free, and an app saves entry time by importing trades. Pick the one you will keep using and test any import with a real file.

How long does it take to keep a trading journal?

Plan on about a minute per trade, five minutes after the session and fifteen to twenty minutes for the weekly review. These are practical starting points and you can adjust them to your own trade volume.

Do prop firm traders need a trading journal?

It is not a firm requirement, but it is useful because evaluations leave little room for repeated mistakes. A journal shows whether your rule-breaking habits are growing, long before they cost you an account. Check your firm's current rules on its own site.

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