Edge & Error

For traders who know the rules and still break them

Find the edge.
Log the error.

We have all been there. Months learning setups, indicators and patterns. Then the same few decisions keep costing money: the moved stop, the revenge trade, the size you swore you would not take. The Error Log puts a price on each one, so you fix the costly one first, before you pay for another course, mentorship or challenge you will not use.

Try the live demo → or get the free starter kit

Illustration of a return distribution: a fat left tail of losses in red, a small right-hand edge in green Error · the fat tail Edge · what you keep Losses Gains
Illustration, not data. Most results live in the middle. The money is lost in the red tail and earned in the thin green edge, so most of the work is cutting the red.

Learning the market vs learning yourself

You spent months on the basics. How long did you spend on yourself?

97%

kept going, still lost

Of everyone who day traded Brazil's equity futures for more than 300 days, 97% lost money. Persistence alone did not fix it. Chague, De-Losso & Giovannetti, 2019.

<1%

reliably profitable

Fifteen years of Taiwan day-trading data: less than 1% of day traders earned predictable profits after fees. Barber, Lee, Liu & Odean, 2014.

1–3 yrs

for those who make it

Traders who do get there usually describe years, not weeks, and the same two habits: a system they follow, and a journal they actually read.

1

question that changes it

Was this trade planned, or was it a reaction? Traders who tag that honestly often find the planned trades were fine. The reactions drained the account.

See what your mistakes cost →

The shelf

Few products, each one finished properly.

  1. No. 01 · EN

    The Error Log

    Most journals record trades. This one finds the leak. Tag the one mistake behind each trade and the Error Log puts a price on it: which error cost you the most, in money and in R, and what your results look like without it. Your mental state is tracked too, so you see which moods make you money and which cost you.

    Web app for phone and PC, also works offline · 25-page field manual on the psychology behind trading errors · Excel and Google Sheets version · no extra account, no subscription, your data stays on your device

    Get the Error Log → · Try the live demo →

    Available now$39 · one-time
  2. No. 02 · EN

    Position Sizing & Risk Toolkit

    How much to risk, where the stop goes and how losing streaks really behave, with calculators instead of rules of thumb.

    Manual + sizing calculator + drawdown simulator

    Planned2027
  3. No. 01 · RO

    Declarația Unică pentru investitori

    For investors in Romania: how to declare gains and dividends from XTB, Trading 212, Revolut and others, with worked examples and a calculator. Romanian edition →

    PlannedFebruary 2027

How we make things

The opposite of a 200-page PDF nobody finishes.

01

Sourced, not generated

Every claim traces back to data, research or a rule you can check. Sources are listed at the end of each guide.

02

Tools that compute

Each guide ships with a spreadsheet or template that does the maths for you, with your own numbers.

03

Short on purpose

Worked examples instead of filler. If a chapter does not change what you do, it is cut.

04

Kept current

Each guide carries a version and a changelog. Buyers get every update to their edition free.

Free starter kit

Find your costliest mistake in five minutes.

Four Error Cards, the pre-trade checklist and a five-minute exercise on your last ten trades. Free, as an 8-page PDF.

Get the free starter kit →

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