Start with the business, not the price
Answer these before you look at any chart or score.
- What does this company sell, to whom, and why do they buy it?
- How does it make money, and where does profit actually come from?
- Is revenue growing, and is that growth profitable?
- Does reported profit convert into cash?
- How much debt is there, and what happens in a downturn?
- Who competes, and what stops them from winning?
- What would make me conclude I was wrong?
Then add context
Only after the business is understood do valuation, ownership evidence and momentum become useful. Applied first, they encourage you to justify a price you already liked.
Write it down
A written thesis with a falsification condition is a practical protection against rewriting your reasoning after a price move.
Key concepts
Select a term to read its definition.
Investment thesis
A written explanation of why you own something, what evidence supports it and what would show it is wrong.
View in the glossaryFalsification
The pre-written condition that would tell you your investment reasoning was wrong.
View in the glossaryDue diligence
The research done before a decision: reading filings, checking facts and understanding the risks.
View in the glossary
Why this matters
A repeatable process makes your conclusions comparable across companies and across years.
Check your understanding
No score is recorded. This is only here to test whether the lesson landed.
0 of 3 answered. Answer every question to see the answers.
Key takeaways
- Understand the business itself before looking at any score or chart
- Apply valuation and other context only after the business is understood
- A written thesis with a falsification condition prevents rewriting your reasoning later
Optional next reading
Not required for this level or the certificate.
- Where Reliable Information Comes From · 5 min
Primary sources versus opinions and marketing.
- Building an Investment Thesis · 5 min
Write down why you own something and what would change your mind.
Related concepts
- Written by
- Pro Investor Academy Research Team
- Content type
- Educational article
- Published
- 2026-09-13
- Last reviewed
- 2026-09-13
Sources
- Intelligent Accumulation methodology — Pro Investor Academy
Pro Investor Academy methodology
- EDGAR full-text and structured filing data — U.S. Securities and Exchange Commission
Regulatory document · U.S.
Educational content only. This lesson is not investment, tax or legal advice and does not recommend buying or selling any specific investment. All investing involves the risk of loss.
