『Beating the Street』要約

Peter Lynch’s "Beating the Street," published in 1993, is the follow-up to his bestselling "One Up on Wall Street" and draws directly on his 13-year record running Fidelity’s Magellan Fund, where he averaged roughly 29 percent annual returns. The book is organized around what Lynch calls the "story" of a company: the idea that individual investors should buy businesses they can understand and then track whether the underlying story is improving or deteriorating, rather than reacting to daily price swings. A central framework is his "cash-on-cash" analysis and the price-to-earnings-to-growth relationship, alongside his practice of reading annual reports closely and checking inventory, store traffic, and product quality firsthand—research he calls "kicking the tires." Several chapters walk through his personal portfolio in detail, including his "Million Dollar Portfolio" for a school class, his reasons for buying and selling specific holdings, and the "St. Agnes" investment club experiment, in which a group of students assembled a portfolio that outperformed the market and many professionals. Lynch devotes substantial space to mutual funds, explaining how to evaluate a fund’s consistency and how to build a portfolio of diversified funds rather than chasing recent winners. He also discusses timing, arguing that investors waste effort trying to predict recessions or interest rates, and he revisits the savings-and-loan crisis as a case study in buying unloved sectors when fundamentals improve. The book closes with his "25 Golden Rules," including advice to invest in what you already know and to avoid being talked out of a good stock by market noise. Throughout, the tone is plainspoken and example-driven, aimed at convincing ordinary savers that disciplined, research-backed stock picking is within reach.