Benjamin Graham
The father of value investing, Buffett’s teacher, the originator of the margin of safety concept
👤 Brief Introduction
Benjamin Graham (1894-1976) is the founder of value investing and author of Security Analysis and The Intelligent Investor. He proposed two core concepts — “安全边际” (margin of safety) and “市场先生” (Mr. Market) — which deeply influenced Buffett, and through him, Duan Yongping. Graham’s core method is to find stocks where market price is far below intrinsic value, thereby obtaining a margin of safety.
💡 Duan Yongping’s Evaluation of Benjamin Graham
- Graham is the source of value investing: 85% of Buffett’s investment philosophy comes from Graham, 15% from Fisher. Graham’s three core principles — good business, good management, good price — form the foundation of all value investing. (Source: Investment Logic Volume)
- Graham’s methods are more suitable for smaller capital: Graham’s investment philosophy is very quantitative, teaching you how to find cheap stocks, making it more suitable for small-scale investment. As capital scale increases, Buffett increasingly adopted Fisher’s philosophy: seeking quality enterprises rather than blindly pursuing cheap ones. (Source: Investment Logic Volume)
- “In the short term the market is a voting machine, in the long term it’s a weighing machine”: This quote from Graham has been cited by Duan Yongping many times and is core to understanding the 市场先生 concept. (Source: Investment Logic Volume, 2011-11-15)
📖 Core Contributions (Impact on Duan Yongping’s Investment System)
安全边际: Graham proposed that purchase price should be well below intrinsic value; this gap is the margin of safety. Duan Yongping’s 毛估估 method essentially seeks out these “obviously cheap” opportunities.
市场先生: Graham used the “Mr. Market” metaphor to explain that markets are emotional in the short term but return to value in the long run. This is one of the theoretical foundations of Duan Yongping’s 平常心 and 长期主义.
“The Superinvestors of Graham-and-Doddsville”: In his 1984 speech, Buffett listed 9 super-investors from Graham’s lineage to prove that value investing’s effectiveness is not accidental. Duan Yongping included this complete speech in his book, regarding it as one of the most important documents in value investing.
💬 Excerpts from Original Text
“In the short term the market looks like a voting machine, in the long term it’s a weighing machine. — Graham” (Source: Duan Yongping Investment Q&A Record (Investment Logic Volume), 2011-11-15)
“Buffett once said that 85% of his investment philosophy comes from Graham, 15% from Fisher… Graham’s investment philosophy is very quantitative, teaching you how to find cheap stocks, making it more suitable for small-scale investment… He increasingly adopted Fisher’s investment philosophy: seeking quality enterprises rather than blindly pursuing cheap ones.” (Source: Duan Yongping Investment Q&A Record (Investment Logic Volume))
“Actually, this summary by him (Buffett) still covers Graham’s three points: good business, good management, good price. It means buying stock in excellent publicly traded companies with first-class business and first-class management at prices quite cheap relative to their intrinsic value.” (Source: Duan Yongping Investment Q&A Record (Investment Logic Volume))
“True investors can hardly wait for volatility — Benjamin Graham, The Intelligent Investor” (Source: Duan Yongping Investment Q&A Record (Investment Logic Volume))
📚 Recommended Reading
Graham’s works recommended by Duan Yongping:
- The Intelligent Investor
- Security Analysis
🔗 Related Notes
格雷厄姆
价值投资的鼻祖，巴菲特的老师，安全边际概念的提出者
👤 人物简介
本杰明·格雷厄姆（Benjamin Graham，1894-1976），价值投资的奠基人，著有《证券分析》和《聪明的投资者》。他提出了”安全边际”和”市场先生”两个核心概念，深刻影响了巴菲特，进而影响了段永平。格雷厄姆的核心方法是：寻找市场价格远低于内在价值的股票，以此获得安全边际。
💡 段永平对格雷厄姆的评价
- 格雷厄姆是价值投资的源头：巴菲特的投资理念85%来自格雷厄姆，15%来自费雪。格雷厄姆的三点核心——好业务、好管理、好价格——是所有价值投资的基础。（来源：投资逻辑篇）
- 格雷厄姆的方法更适合小资金：格雷厄姆的投资理念非常量化，教你如何寻找廉价股票，更适合小规模投资。随着资金规模增大，巴菲特越来越多地采用费雪的理念：寻找优质企业，而不是一味追求廉价。（来源：投资逻辑篇）
- “市场短期是投票器，长期是称重机”：这句话来自格雷厄姆，被段永平多次引用，是理解市场先生概念的核心。（来源：投资逻辑篇，2011-11-15）
📖 核心贡献（对段永平投资体系的影响）
安全边际：格雷厄姆提出，买入价格应该远低于内在价值，这个差距就是安全边际。段永平的毛估估方法，本质上就是在寻找这种”明显便宜”的机会。
市场先生：格雷厄姆用”市场先生”这个比喻，说明市场短期是情绪化的，长期才会回归价值。这是段永平平常心和长期主义的理论基础之一。
“格雷厄姆多德式投资部落”：巴菲特在1984年的演讲中，列举了9位来自格雷厄姆门下的超级投资者，证明价值投资的有效性不是偶然。段永平在书中完整收录了这篇演讲，视之为价值投资最重要的文献之一。
💬 原文摘录
“市场短期看是投票器，长期看是称重机。——格雷厄姆”（来源：段永平投资问答录(投资逻辑篇)，2011-11-15）
“巴菲特曾说过，他的投资理念85%来自格雷厄姆，15%来自费雪。……格雷厄姆的投资理念非常量化，教你如何寻找廉价股票，更适合小规模投资。……他越来越多地采用费雪的投资理念：寻找优质企业，而不是一味地追求廉价企业。“（来源：段永平投资问答录(投资逻辑篇)）
“其实，他（巴菲特）这一句概括的还是格雷厄姆的三点：好业务、好管理、好价格。就是用相对于内在价值来说相当便宜的价格买入业务一流而且管理一流的优秀上市公司的股票。“（来源：段永平投资问答录(投资逻辑篇)）
“真正的投资人喜欢波动都还来不及，本杰明·格雷厄姆《聪明的投资者》“（来源：段永平投资问答录(投资逻辑篇)）
📚 推荐书目
段永平推荐的格雷厄姆著作：
- 《The Intelligent Investor》（聪明的投资者）
- 《Security Analysis》（证券分析）