What a Sloppy Journal Cannot Tell You

[Fairman]

What a Sloppy Journal Cannot Tell You

A journal has five columns: date, pair, buy or sell, profit in dollars, and a note reading "good setup" or "bad luck." Ask which questions it can answer, and which it cannot.

It can answer: total profit in dollars, the number of trades, the win rate, and the best and worst trades by dollar result.

It cannot answer: the result in R, because there is no stop or risk recorded. Whether the trader followed the plan, because there is no flag. Which setup performs best, because there is no setup tag. Which session or hour is best, because there is no time. How costs affect results, because spreads and swaps are not recorded. Whether losses exceeded the plan, because there is no planned risk. Whether sizing was consistent. How the trader felt.

The dollar profits are also misleading when size varies. A 150-dollar win on 1.0 lots and a 150-dollar win on 0.2 lots are very different decisions.

The notes, "good setup" and "bad luck," are outcome-biased labels. A trade that lost is called bad luck, one that won is a good setup. Neither is checked against rules.

Fix with a minimal upgrade. Add entry time, stop price, exit price, lot size, setup tag, spread, a followed-plan flag, and a one-word emotion. With those, you can compute R, costs, and behavior, as in earlier drills.

Do it for the next trade. Then retroactively fill the last ten from your platform history.

Exercise: list five questions you want your journal to answer, and check that each has a column.