Friday evening, the week ends with three consecutive losses. You feel like changing everything on Monday: a new indicator, a different time frame, another asset. Before touching anything, open your journal. It remembers what really happened better than you do.

Your memory lies, your numbers don't

The statistics on retail traders are well known, and they are harsh. France's financial markets regulator, the AMF, tracked active clients trading Forex and CFDs for four years. Its study found significant losses among the clients studied. Spain's regulator, the CNMV, likewise reminds traders that investors lose money when they trade CFDs.

Academic research points in the same direction. Studying Taiwanese day traders, Brad Barber, Terrance Odean and their co-authors identified a minority capable of making predictable profits. One detail from their work will resonate with every active trader: the biggest day traders generate gross profits, but not enough to cover their costs.

Two lessons follow. First, you do not know which camp you are in until you measure it. Second, what tips an account into the red is rarely visible at a glance: spread, commissions, slippage and swaps. A well-maintained journal brings these costs to light.

What to record—and nothing more

A journal that is too cumbersome gets abandoned after three weeks. Keep the fields that are useful for analysis and fill them in when you take the trade, not from memory on Sunday. If you are starting from scratch, the free trading journal template, in Excel and PDF gives you a ready-to-use foundation.

Before entering, record:

  • the setup, using a short name that never changes;
  • the entry price, stop and target;
  • the risk in euros and as a percentage of the account;
  • the context: session, broader trend and any upcoming release on the economic calendar.

After closing the trade, add:

  • the result in euros and in R, including fees;
  • a “plan followed” box: yes or no, with no middle ground;
  • if needed, an error tag (early entry, moved stop, premature exit);
  • your state of mind before entry, in one word.

The “plan followed” box is the most valuable. It separates two questions we constantly mix up: does my method work? Did I apply it?

Worn notebooks with colorful tabs arranged on a shelf in a quiet office early in the morning

The numbers that matter

R, your unit of measurement

Express every result as a multiple of the initial risk. A trade that makes twice the amount risked is worth 2 R; a stop-out is −1 R. This unit removes account size and position-sizing changes from the equation. You can therefore compare a trade on gold with a trade on EUR/USD, or your March with your September.

Win rate alone says nothing

A high win rate feels reassuring. But it can hide a losing method if losses are much larger than gains. Conversely, a strategy that loses more often than it wins can still be profitable if its winners are large. Always read win rate alongside average gain and average loss, in R.

Expectancy brings all three together. Multiply the win rate by the average gain, then subtract the loss rate multiplied by the average loss. The result is what you win or lose, on average, per trade, in R. When positive, it signals an edge. When negative, it tells you that every additional trade costs you.

Profit factor completes the picture: total gains divided by total losses. Above 1, you make more than you lose.

Drawdown, the number that makes you quit

Drawdown measures the decline from an account high to the subsequent low. It is what pushes traders to abandon a sound method at the worst possible time. Record your maximum drawdown in R and calculate the longest losing streak that your win rate makes plausible. A losing streak you expect can be endured. One that surprises you leads to mistakes.

On a prop firm account, this figure becomes critical. The daily loss limit and maximum permitted loss can be read directly in R: how many full stops stand between you and disqualification?

The small-sample trap

Ten trades tell you almost nothing. A good week may be luck, and so may a bad one. Be especially wary of subcategories: a setup traded six times with five winners may look like a gem, but it is still only a hypothesis. The more you break down your data, the more fragile each segment becomes.

Friday review, step by step

Set aside a fixed time slot, with the markets closed and away from your live charts. Always follow the same order.

  1. Fill the gaps. Every trade should have its R, its fees and its “plan followed” box.
  2. Count your deviations from the plan. How many trades were outside the plan? What did they return compared with compliant trades?
  3. Review your worst trades. Reopen the chart. Did the stop follow the rule or chance? Did you wait for the signal before entering?
  4. Review the best ones too. An off-plan winner is a bad trade that got lucky. Do not let it become a habit.
  5. Update your rolling statistics. Expectancy, win rate and drawdown, by setup and session, across your entire history.
  6. Write one sentence. What you will correct next week. One thing only.

This last point matters more than it may seem. Make three resolutions at once, and you will keep none of them.

From numbers to rules

A statistic is useless until it changes an action. Translate every finding into a written rule using the “if… then…” format. “I trade badly on Friday afternoons” is a regret. “If it is Friday after lunch, I take no new positions” is a rule.

A rule is not a conviction. It is a hypothesis you commit to testing, with a review date set in advance.

Four principles keep your journal from becoming a superstition factory:

  • One rule at a time. Change three, and you will never know which one made the difference.
  • A trial period. Set a number of trades before judging, and stick to it.
  • A discard criterion. Decide from the outset what would prove the rule does not work.
  • Behavior first. Eliminating off-plan trades often pays off faster than optimizing a setup.

Data entry and calculations discourage many traders before they even reach their first review. A tool can help. Edgyx's AI trading journal imports your trades, calculates statistics by setup and session, and its Ora coach identifies gaps between your plan and execution. The decision is still yours.

In brief

  • Record a small number of fields, always the same ones, at the time of the trade, including fees.
  • Express everything in R: it is the only unit that allows comparisons.
  • Read win rate alongside average gain and loss; expectancy settles the question.
  • Anticipate your worst losing streak before it arrives.
  • Conduct a weekly review, ending with one written correction.
  • Turn every finding into an “if… then…” rule, tested over a predefined period.