Mr. Market
Benjamin Graham’s Mr. Market allegory portrays the stock market as a moody business partner who offers to buy or sell shares each day. Investors can compare those offers with their assessment of the business’s value and choose whether to trade.
THE IDEA
Mr. Market
Mr. Market’s job is to provide you with prices; your job is to decide whether it is to your advantage to act on them. You do not have to trade with him just because he constantly begs you to.
—Benjamin Graham, The Intelligent Investor
Benjamin Graham introduced the Mr. Market allegory in The Intelligent Investor in 1949. It separates the price offered by the market from an investor’s assessment of a business’s value.
Graham asks us to imagine the market as a moody business partner. Every day, this partner—Mr. Market—tells you what he thinks your shares are worth and offers either to buy your stake or to sell you a portion of his own at that price.
- On euphoric days, Mr. Market is exuberant and names a price far above the company’s intrinsic value; an investor may choose to sell.
- On depressed days, Mr. Market is gloomy and offers a price far below intrinsic value; an investor may choose to buy.
- Most of the time, his prices are in a reasonable range, and you are free to ignore him.
The true investor is the one who is in every position when he owns one common share. You can take advantage of the daily prices of the quotes or disregard them, carried out by your own judgment and inclination.
The allegory draws attention to the influence of emotion on stock prices. The most realistic distinction between an investor and a speculator is their attitude toward market movements: the speculator tries to anticipate and profit from fluctuations, while the investor aims to acquire and hold securities at adequate prices.
The investor still has to assess value. A price that has fallen may reflect a damaged business, and an apparently cheap share can become cheaper.
When to use it
An investor stays calm during a market crash, viewing it as Mr. Market’s depressive episode and an opportunity to buy undervalued assets.
An advisor uses the allegory to explain why daily price changes need not dictate a client’s decisions, while discussing the risks of the investments themselves.
A value investor compares daily prices with business fundamentals and decides whether the gap justifies a trade.
A portfolio manager sets predetermined buy/sell rules based on intrinsic value gaps to mechanically exploit Mr. Market’s mood swings without emotional interference.
FROM THEORY TO EVERYDAY LIFE
In practice
Euphoric Day
Mr. Market offers to buy your shares at $150 each, though your analysis shows the company’s intrinsic value is only $100. You sell because his euphoria has inflated the price beyond fair value.
Depressed Day
Mr. Market offers to sell you his shares at $50 each for a business you know is worth $100. You buy because his depression has created a margin of safety.
The 2000 Dot-Com Bubble
During the dot-com bubble, Mr. Market was wildly euphoric about technology stocks, driving prices to unsustainable levels. Investors who sold overvalued shares avoided the subsequent crash.
The 2008 Financial Crisis
In the panic of 2008, Mr. Market became deeply depressed, throwing away shares of sound companies at bargain prices. Value investors who bought then earned handsome returns as the market recovered.
A MOMENT TO REFLECT
Put it to work.
When have you responded emotionally to market swings, acting like Mr. Market’s servant rather than his master?
How can you determine whether a current market price reflects irrational euphoria or depression, relative to a business’s intrinsic value?
How does the Mr. Market concept help you resist herd mentality during booms and busts?
Often confused with
References
- The Intelligent Investor — Benjamin Graham (1949)
CONTINUE THE CONVERSATION
Source texts
- Wisdom Theory 100 Mental Models (2020) (Wisdom Theory)