Customer Quote by John C. Bogle
“The mistakes we make as investors is when the market's going up, we think it's going to go up forever. When the market goes down, we think it's going to go down forever. Neither of those things actually happen. Doesn't do anything forever. It's by the moment.”
About This Quote
Source Book: Common Sense on Mutual Funds, John C. Bogle, 1999
Investors overreact to short‑term market moves, assuming trends will last forever, but markets are always changing.
In simple terms: People think market trends are permanent, but they aren't.
Key Takeaway
Focus on long‑term fundamentals, not short‑term swings.
Themes
investing
behavioral finance
market cycles
Mood
cautious
reflective
Type
advice
educational
When to use this quote
- portfolio planning
- retirement saving
- daily market monitoring
- financial education
Key Concepts
cognitive bias
probability
risk management
Questions to Reflect On
- How can you guard against trend‑following bias?
- What strategies keep you disciplined during volatility?
A Different Perspective
Assuming permanence can lead to poor timing and missed opportunities.
