Market Overview
Het Belang Van Een Trading Journal
Back to blogs
Trading

The Importance of a Trading Journal

Without data, you can't improve. A trading journal is the difference between random and intentional trading. Learn how to keep one.

T
TradingUnie
10 June 2026
5 min read
#trading journal#trading logboek#trades bijhouden#trading analyse#trading verbeteren#trading data#trading performance

The Importance of a Trading Journal

If you don't track what you do, you'll never learn from your mistakes. A trading journal may be the most important tool that most traders do not use.

What Is a Trading Journal?

A trading journal is a log of all your trades: why you opened them, how they ended, and what you learned from them. It can be a spreadsheet, an app, or just a notebook.

The format doesn't matter. What matters is that you do it.

Why a Journal Is Essential

You See Patterns

Without a journal, your trades seem random. With a journal, you see patterns: 'I usually lose on Friday afternoons' or 'My winning trades are always the breakouts'.

You Can Evaluate Your Strategy

How do you know if your strategy works? Not by feeling — by data. Your win rate, your average profit, your average loss, your risk-reward ratio.

You Learn From Your Mistakes

Repeating the same mistake is costly. A journal ensures that your mistakes are one-time occurrences.

You Build Confidence

If you can see that your strategy has historically worked, you have more confidence to follow it — even after a series of losses.

What Do You Record Per Trade?

At a minimum:

  1. Date and time — when did you open the trade?
  2. Instrument — which currency pair or instrument?
  3. Direction — long or short?
  4. Entry price — where did you enter?
  5. Stop loss — where was your stop?
  6. Take profit — where did you take profit?
  7. Exit price — where did you exit?
  8. Reason for entry — why did you open this trade?
  9. Setup — what setup did you use?
  10. Emotion — how did you feel?
  11. Result — profit or loss?
  12. Lesson — what did you learn?

How Do You Start?

Keep it simple. A spreadsheet with the above columns is enough. It doesn't have to be perfect, but it needs to be consistent.

After each trade, fill in your journal. Not once a week — immediately.

What You Will Discover

After about three months, you'll see things that surprise you:

  • You lose more often at certain hours
  • Some setups work better than you thought
  • Your emotion impacts your results more than your strategy
  • You ignore your own rules more often than you think

These insights are worth their weight in gold. You can't improve what you don't measure.

Conclusion

A trading journal isn't sexy, but it might be the difference between a trader who grows and a trader who stagnates.

You don't need complicated software. A spreadsheet and 2 minutes per trade is enough. Start today.

Free Education Call

Ready to learn trading?

Book a free and no-obligation education call and discover how to avoid the mistakes we describe in our blogs.

No-obligation introduction call
No costs, no obligations
Schedule at your convenience