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Not investment advice. Educational reading. See Disclaimer.
L.8 · BEGINNER · 2 MIN

Mr. Market: Graham's Core Insight

Benjamin Graham created an allegory called Mr. Market in 1949. It remains the most important mental model in investing 75 years later.

Quiz · 5 questions ↓

Mr. Market: your moody business partner

Imagine you own a private business with a partner named Mr. Market. Every day, he offers to buy your share or sell you his. Some days he is euphoric and offers absurdly high prices. Other days he is depressed and will sell for almost nothing.

You are never obligated to trade with him

The key insight: you are not obligated to trade with Mr. Market. His mood swings are your opportunity, not your guide. If his price is too high, sell to him. If too low, buy from him. If neither, do nothing.

How to respond to each of Mr. Market's moods

Mr. Market Is...He Offers...Smart Investor Does...
Euphoric (greedy)To buy at absurd premiumsSells or holds
RationalFair pricesDoes nothing
Depressed (fearful)To sell at deep discountsBuys more

Reacting to a pundit's crash prediction

Your friend is anxious because a popular TV pundit said 'stocks will crash 40% this year — sell everything now.' His portfolio is diversified index funds he's held for 8 years. What does Graham's Mr. Market framework suggest?

Voting machine short-term, weighing machine long-term

The stock market is a voting machine in the short run and a weighing machine in the long run. Mr. Market votes with his emotions. Your job is to weigh with your analysis.

Where to practice the Mr. Market mindset

For applied practice, the Personal Finance & Value Investing course works this same framework through real scenarios in its Businesses, Not Tickers and Intrinsic Value vs. Price modules (pfvi-8, pfvi-9).

Check your understanding

Sit with the ideas.

A high-quality company with growing earnings and strong cash flow drops 25% in two weeks because the overall market is in a panic about interest rates. The company has no debt. What would Benjamin Graham likely say?

Why:
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