What Is a Trading Journal? What to Record and Why

A trading journal is a record of every trade you take: what you traded, where you got in and out, how much you risked, why you took it, whether you followed your rules and how you felt. A broker statement tells you what happened. A journal tells you why, and that turns a pile of results into something you can learn from: which setups pay, which mistakes cost you, and whether you're trading the plan you wrote.

#What is a trading journal for?

A journal answers three questions a P&L figure can't:

1. Is my edge real? Do the setups you trade actually make money over a decent number of trades, or does one lucky day hide a losing pattern?
2. Am I following my rules? Were the losses trades you planned, or trades you shouldn't have taken?
3. What is costing me the most? Moving stops, trading the open, oversizing after a loss: a journal puts a number on each one.

Without a record, you're relying on memory, and memory is kind to winners and vague about losers. Writing each trade down when it happens takes hindsight out of it.

#What should you record for each trade?

Think of it in four layers. The first can usually be imported from your platform; the other three only you can add.

#1. The facts

• Date and time of entry and exit
• Market or contract (for example MNQ, ES or EURUSD)
• Long or short, and size (contracts or lots)
• Entry price, exit price, fees, and the P&L

#2. The plan

• Your initial stop. This is the most important number in the journal, because it defines your risk on the trade.
• Your risk in money, which becomes 1R (see below)
• Your target, if you had one
• The setup's name, from a short list of setups you trade on purpose

#3. The process

• A checklist of the setup's rules, ticked or not
• A grade for how well you executed, judged on the rules rather than the result
• Any mistakes, named consistently (for example "moved stop", "early exit", "no setup")

#4. The context

• How you felt before and during the trade: calm, rushed, frustrated, fearful of missing out
• What else was going on: a news release, the first minutes of the session, a losing streak earlier in the day
• A screenshot of the chart at entry and exit
• One line on what you'd do again or differently

Field	Example	Why it matters
Initial stop	20,980.00	Defines 1R, so every trade can be compared
Setup	Opening range break	Lets you see which setups pay
Rules kept	3 of 4	Separates good process from good luck
Feeling	Frustrated after a loss	Reveals patterns like revenge trading
Note	"Entered before the candle closed"	The lesson, in your own words

#Why measure trades in R?

An R multiple is a trade's result divided by what you planned to risk. If you risk $200 and make $500, that's +2.5R; if you're stopped out as planned, it's −1R. R puts every trade on the same scale whatever the contract or size, so a one-lot day and a five-lot day can be compared fairly. It also shows at a glance whether your losses stay at −1R or quietly grow beyond it.

Our guide on how to calculate R multiple walks through the formula with futures examples.

#Why track rules and feelings, not just P&L?

Because the outcome of a single trade is partly luck. A trade that followed every rule and lost is a good trade; a trade that broke your rules and won is a habit that will cost you later. If you only look at P&L, you reward the wrong behaviour.

Rules and feelings are also where most patterns hide. Once you have a few weeks of data you can ask questions like:

• What's my average R when I kept every rule, against when I broke one?
• How do trades taken straight after a loss perform?
• Do I do worse in the first 15 minutes of the session?

These are questions about you, not the market, which is why a journal is useful whatever you trade.

#Why does keeping a journal work?

There's nothing magic about it. It works because it creates a feedback loop:

• Record each trade honestly, at the time.
• Review regularly, in R, grouped by setup and by mistake.
• Change one thing and measure whether it helped.

Two cautions. Small samples mislead: ten trades of a setup tell you very little, so let numbers build before you drop or double down on anything. And a journal only helps if it's complete; skipping the bad days removes exactly the trades you most need to see.

#Paper, spreadsheet or app: which should you use?

#A paper notebook

Quick to start and good for writing down reasoning and feelings in the moment. The downside is that you can't sort or total anything, so reviewing a month means reading every page.

#A spreadsheet

Free, flexible and yours to design. You can add an R column, filter by setup and chart your results. The cost is time: you type or paste every trade, keep the formulas working, and build each analysis yourself. Spreadsheets also struggle with fills; turning a scaled entry and two partial exits into one trade by hand is fiddly. If you go this way, our trading journal spreadsheet template has the columns and formulas.

#A journal app

An app imports trades from your platform, works out the statistics for you and keeps screenshots and notes with each trade. You pay a subscription, and you should check where your data is stored and whether you can export it. Marble, for example, reads the export from Tradovate, TopstepX, Rithmic, NinjaTrader, MetaTrader, cTrader or Interactive Brokers and pairs the fills into trades, so you only add the setup, the rules and how it felt.

Whichever you choose, the best journal is the one you'll keep up on your worst days as well as your best.

#How to start a trading journal today

1. Write down your setups. Two or three is plenty. For each, list the rules that must be true before you enter; see how to write a trading setup playbook.
2. Decide your fields. Use the four layers above. Keep it short enough that you'll fill it in every time.
3. Log every trade the same day, including the ones you'd rather forget.
4. Review once a week. Our weekly trade review routine takes about 45 minutes.
5. Change one thing at a time, then check next week whether it worked.

If you trade a funded or evaluation account, add the firm's limits to your daily notes too; see how to journal a prop firm evaluation.

---

Marble is a trading journal that imports your trades and grades each one on the rules you kept. See how it works.

Marble is a trading journal. Nothing here is financial advice.