How to Keep an Investment Journal — Tracking Decisions and Lessons Learned

Why Do the Best Investors Keep a Journal?

Ray Dalio, George Soros, Peter Lynch — they all documented their investment decisions. Not because they loved writing, but because memory is unreliable and emotions distort recollections.

After a successful investment you think: "I knew it from the start." After a loss: "It was bad luck." An investment journal ruthlessly shows the truth — what you actually thought, why you bought and what you missed.

What to Record?

When Opening a Position

1. Date and instrument — what you're buying, for how much, what position size.
2. Investment thesis — WHY you're buying. This is the most important point. Write specifically: "Buying VWRA because I believe in long-term growth of global stocks" or "Buying CD Projekt because Witcher 4 will increase revenue by 40%."
3. Expected scenario — what needs to happen for you to profit?
4. Exit conditions — when will you sell? At what price? After what event?
5. Risk — what could go wrong? How much can you lose?
6. Emotions — how do you feel? Excited? Uncertain? FOMO?

When Closing a Position

1. Date, price, result — profit/loss in PLN and percentage.
2. Why are you selling? — goal realization? Thesis change? Panic?
3. What went well?
4. What went wrong?
5. What would you do differently?

Regular Reviews (monthly/quarterly)

• How many transactions did you execute?
• What percentage was profitable?
• Did you stick to your rules?
• What patterns do you see in your mistakes?

Entry Template

Date: 2026-02-27
Action: BUY
Instrument: VWRA (Vanguard FTSE All-World)
Price: 112.50 EUR
Size: 20 units (2,250 EUR)
Portfolio share: 15%

THESIS: Regular DCA deposit. Global stock market
grows 7-10% annually long-term. Not trying to
time the bottom.

EXIT CONDITIONS: None — holding until retirement
or rebalancing.

RISK: 30-50% drop in recession. Acceptable
given 15+ year horizon.

EMOTIONS: Calm, routine deposit.

Tools for Keeping a Journal

Simple and Free

• Notepad/Google Docs — text works.
• Google Sheets/Excel — tabular format facilitates analysis.
• Notion — templates, database, tags.

Dedicated

• Freenance — portfolio tracking + transaction history in one place.
• TraderSync / Edgewonk — for active traders (mainly English).

Most Common Patterns You'll Discover

After several months of keeping a journal you'll probably notice:

• You buy too late — entering after big rises due to FOMO.
• You sell too early — closing profitable positions fearing decline.
• You hold losses — "it will definitely recover" (no, it won't).
• Overtrading — too many transactions, too many commissions, too much stress.
• Ignoring your own rules — setting a plan and breaking it.

Simply becoming aware of these patterns is worth more than hundreds of hours reading about investing.

5 Rules of Good Journaling

1. Write BEFORE transaction, not after — then you're objective.
2. Be honest — nobody reads this. Admit to FOMO, fear, greed.
3. Review regularly — journal without reviews is a dead file.
4. Don't edit retroactively — don't correct old entries. Let history be authentic.
5. Focus on process, not outcome — good decision with bad result is still a good decision.

How Freenance Can Help?

Freenance automatically tracks your portfolio history — every transaction, every value change. It's an ideal base for keeping an investment journal:

• you see complete history of purchases and sales,
• track performance of each position,
• have numerical data for your lessons learned.

👉 Track your investments and learn from decisions — freenance.io