Why I Keep a Trading Journal

A man sits thoughtfully with a tablet at an outdoor table, illustrating reflection, data and iteration in a trading journal.

I do not want every trade to disappear into the rear-view mirror the moment I close it. I want to learn from it. That is why I keep a trading journal.

Before I enter, I record what I am trying to do: the setup, entry, target, stop, thesis and risk/reward. That matters because it captures what I believed before I knew the outcome.

Afterward I record what actually happened. Where did I really enter and exit? Did I follow the strategy? Did I chase? Move the stop? Sell too early? Hang on too long? What did the stock do, and what did I do?

This helps me separate process from outcome. A profitable trade is not automatically a good trade. I can break every rule, get lucky and still make money. I can also execute a reasonable setup with discipline and lose. Markets do not owe me a win because I followed my process.

Over time, the journal starts showing me patterns in my own behaviour. Maybe I am better at breakouts than swings. Maybe my stops are consistently too tight. Maybe I keep giving back gains because I am reluctant to sell. Without records those are impressions. With records I can study them.

Writing the trade down also slows me down just enough to make me articulate what I am doing. That is very different from seeing something move, feeling FOMO and throwing money at it.

The goal is not to become somebody who never makes a mistake. It is to stop making the same mistake without learning anything from it.

Plan it. Trade it. Review it. Improve it. That is really the system.

Read How I Think About Trading and Plan the Trade Before You Enter It. I also built a Day Trading Journal Template for Notion around the same principle.

This article reflects my personal trading approach and is for educational purposes only. It is not financial or investment advice. Trading involves risk.

Chad McMillan, creative entrepreneur and strategic advisor
Chad McMillan

Chad McMillan is a creative entrepreneur and strategic advisor with over 20 years of experience in and around the capital markets, focused on finding hidden potential in companies, ideas, markets and people, and advancing what they can become.

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