Famous Investors · definition
Benjamin Graham
Benjamin Graham (1894-1976) was an economist, professor and investor known as the father of value investing and security analysis, and the author of The Intelligent Investor.
Benjamin Graham (1894-1976) was a British-born American economist, investor and Columbia Business School professor, widely called the father of value investing. His two books, Security Analysis (1934, with David Dodd) and The Intelligent Investor (1949), turned security selection from speculation into a discipline with rules, and remain in print today.
Key takeaways
- Graham formalised fundamental security analysis as an academic and professional discipline.
- His core concepts, intrinsic value, margin of safety and the "Mr. Market" allegory, still anchor value investing.
- His students and employees at Graham-Newman included Warren Buffett.
- His "defensive versus enterprising investor" distinction framed investing around temperament and effort.
Life and career
Graham was born in London in 1894 and moved to New York as a child. After graduating from Columbia at twenty, he went to Wall Street, eventually running the Graham-Newman partnership. The crash of 1929 nearly ruined him, an experience that hardened his insistence on protecting against loss before seeking gain. From 1928 he taught at Columbia, where his course became the seedbed of an entire school of investors.
Ideas that lasted
Three Graham ideas dominate his legacy. Intrinsic value: a security has a worth grounded in facts, assets, earnings, dividends, distinct from its quoted price. Margin of safety: buy only at a clear discount to that worth, so analysis errors and misfortune are survivable; Graham called these "the three most important words in investing". Mr. Market: treat market prices as offers from an erratic partner to be exploited when extreme and ignored otherwise. He also distinguished investment, operations promising safety of principal and an adequate return upon thorough analysis, from speculation, a definition still quoted by regulators and textbooks.
Influence
Graham's intellectual descendants include several of the most documented long-term investment records of the twentieth century. Buffett, who worked for Graham-Newman in the 1950s, called The Intelligent Investor "by far the best book about investing ever written" and named his son Howard Graham Buffett after his teacher. Investing Value has profiled investment thinkers since 2001; Graham's entry sits at the root of that family tree.
Frequently asked questions
What was Graham's actual investment record?
The Graham-Newman partnership is estimated to have returned roughly 17-20% annually from 1936 to 1956, versus about 12% for the broad market, figures reconstructed by researchers from partnership reports.
What is the difference between the defensive and the enterprising investor?
Graham's split by effort, not wealth: the defensive investor wants freedom from bother and accepts ordinary results; the enterprising investor treats security analysis as serious, time-consuming work in pursuit of better ones.
Sources
This entry is for education only. Investing Value describes how financial concepts work; it does not provide investment, tax or legal advice, and nothing here is a recommendation to buy or sell any asset.