How to Keep a Trading Journal: What to Log and Why

Updated October 25, 2026 · 5 min read

Educational content only. This guide explains how to record and review your own trades. It contains no trading signals or strategy recommendations and is not financial advice. Trading involves a substantial risk of loss.

Memory is a poor record of trading. Winning trades feel like skill, losing trades feel like bad luck, and after a few weeks it is hard to say what really happened. A trading journal fixes that by writing down every trade with the same set of facts, so you can review your own process with real data instead of impressions. A journal cannot make a strategy profitable or remove risk, but it can show you whether you followed your own rules, where your mistakes repeat and how much you are actually risking.

Why keep a trading journal?

What to log for every trade

Use the same fields every time, and fill in the plan before you enter, while your reasoning is not yet influenced by the result.

Before the trade

After the trade

How to calculate the R-multiple

The R-multiple expresses a trade's result in units of the risk you planned to take. "1R" is the amount you would have lost if the stop had been hit.

R-multiple = result of the trade ÷ planned risk

Example: you buy 100 shares at $50 with a stop-loss at $48. Your planned risk is 100 × ($50 − $48) = $200, so 1R = $200. On a $10,000 account, that is 2% of the account.

R makes trades of different sizes comparable and immediately exposes a problem many journals reveal: losses bigger than −1R, which usually mean the stop was moved or ignored. Remember to include fees; in this example, $2 of commissions would turn a $300 gain into $298.

Sample journal row

DateInstrumentSideEntryStopSizeRiskExitNet resultRRules?
2026-11-02Stock XYZLong$50.00$48.00100$200 (2%)$53.00+$298+1.5Yes

The ticker is a placeholder; the row only shows how the fields fit together.

Review metrics, weekly and monthly

Logging is half the work. The other half is a regular review. Once a week, read through your trades and notes. Once a month, calculate a few numbers. Small samples are noisy, so read them as a description of the past, not a forecast.

An example of why these numbers belong together: suppose 20 trades had a 40% win rate, an average win of +1.5R and an average loss of −1R. Expectancy = 0.4 × 1.5 − 0.6 × 1 = 0R. Before costs, that period broke even, and after fees it lost money, even though some individual wins looked impressive. For drawdown: if an account rose to $10,500 and later fell to $9,800 before making a new high, the maximum drawdown was $700, or about 6.7% of the peak.

Also sort trades by setup, instrument, day of week and the "rules followed" column. Comparing trades that followed the plan with those that did not is often the most useful part of the review.

Common journaling mistakes

  1. Logging only some trades. Skipping the embarrassing ones makes every statistic misleading.
  2. Writing the reason after the result. Record the plan before entry so hindsight cannot rewrite it.
  3. Ignoring costs. Fees, spreads and commissions belong in the result.
  4. Collecting data but never reviewing it. Schedule the weekly and monthly reviews in advance.
  5. Drawing big conclusions from a few trades. A handful of results can be pure chance.

FAQ

Should I journal demo or paper trades?

Yes. Journaling practice trades builds the habit and the rule-checking routine before real money is involved.

Spreadsheet or notebook?

Either works. A spreadsheet can calculate R, win rate and expectancy for you, which makes monthly reviews faster; a notebook is fine if you review it consistently.

Will a trading journal make me profitable?

No tool can promise that. A journal is a record that helps you understand your own decisions and risk. Results depend on many factors, and losses are always possible.

Risk disclaimer

This article is for educational purposes only and is not financial, investment or trading advice, nor a recommendation to buy or sell any instrument. Trading stocks, currencies, futures, crypto assets and derivatives involves a substantial risk of loss and is not suitable for everyone. With some leveraged products, losses can exceed your initial deposit. Past results, including those in your own journal, do not guarantee future results. Only trade with money you can afford to lose, and consider consulting a licensed professional.