The fundamental concept behind value investing is to invest in securities that are undervalued in the market, with the expectation that their true value will be recognized over time. This strategy often involves a comprehensive analysis of a company's financial health, including its earnings reports, dividends, and competitive position. Investors often look for stocks with low price-to-earnings (P/E) ratios, high dividend yields, and strong fundamentals. The method is widely popularized by legendary investors like Benjamin Graham and Warren Buffett.