IN THIS LESSON
Purpose
Teach investors the behaviors and decisions that consistently lead to poor results — regardless of intelligence, education, or market conditions.
These mistakes are behavioral, not analytical.
They come from emotion, impatience, and lack of discipline.
1. Overtrading
Most investors trade too much because they:
chase every market move
react to news
mistake activity for progress
try to “optimize” instead of hold
Overtrading increases:
fees
taxes
mistakes
And it destroys the compounding that creates wealth.
2. Emotion-Driven Decisions
The most common pattern in market history:
Buy during excitement
Sell during fear
This flips the compounding engine upside-down.
Emotional decisions cause investors to:
panic in drawdowns
buy at market tops
sell right before recoveries
anchor to headlines instead of fundamentals
Temperament is more important than IQ.
3. FOMO
FOMO shows up as:
chasing hot stocks
chasing “AI winners”
buying high because price is rising
confusing popularity with quality
FOMO turns markets into stampedes.
And stampedes always end the same way.
4. No Sell Discipline
Great investors know exactly:
why they bought
what would invalidate the thesis
what signals require trimming or exiting
Most investors never write down a thesis.
So they don’t know when they’re wrong — and don’t know why they sold.
A clear sell framework protects returns.
5. No Investment Thesis
Owning something without understanding it leads to:
reacting to volatility
copying others
misunderstanding risks
holding low-quality businesses
selling strong businesses too early
If you do not know:
what the company does
why it wins
how it makes money
why earnings will grow
what valuation implies
— you cannot hold it through volatility.
Thesis clarity = conviction = long-term returns.
Why This Lesson Matters
Skill-based investing succeeds when you:
think independently
understand what you own
control your behavior
avoid the traps most investors fall into
You don’t need perfect predictions.
You need to avoid the mistakes that consistently destroy compounding.
-
Add a short summary or a list of helpful resources here.