The Intelligent Investor
The definitive book on value investing — Warren Buffett's favourite.
Read the summary ↓Summary — what The Intelligent Investor is about
Benjamin Graham's classic lays the foundation of value investing: buying securities for meaningfully less than their intrinsic worth and demanding a 'margin of safety'. He separates true investing (analysis and safety of principal) from speculation.
His allegory of 'Mr. Market' — a moody partner who quotes wildly different prices each day — teaches emotional discipline: buy when he's fearful, ignore him otherwise. The book also contrasts the cautious 'defensive' investor with the active 'enterprising' one.
Key lessons & takeaways
- Always invest with a margin of safety.
- Treat 'Mr. Market' as your servant, not your guide.
- Investing requires analysis and safety of principal.
- Decide whether you're a defensive or enterprising investor.
- Price is what you pay; value is what you get.
Chapter-by-chapter / section outline
- 1Investment vs. Speculation — knowing the difference
- 2The Investor and Inflation — protecting purchasing power
- 3A Century of Stock-Market History
- 4General Portfolio Policy: The Defensive Investor
- 5Portfolio Policy for the Enterprising Investor
- 6The Investor and Market Fluctuations — meeting Mr. Market
- 7Margin of Safety as the Central Concept
Big ideas worth remembering
The investor's chief problem — and worst enemy — is likely himself.
Who should read this book
- Serious investors ready for a rigorous, foundational text.
- Anyone who wants value investing from the source.
- Readers who want emotional discipline as much as technique.
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About these notes: This is an original educational summary written by Applica Finance to help you decide what to read and remember the core ideas. It is not a reproduction of the book. If the ideas resonate, please support the author by buying the full book.