价值投资的四个理念，你做到了么？｜投资小知识

Group 1 - The core idea emphasizes focusing on companies that can generate profits over the long term, as many stocks may underperform or only occasionally yield profits [2][3]. - The concept of margin of safety is introduced, defined as purchasing an asset worth 1 unit for only 0.6 units [3]. - Various valuation metrics are discussed, including price-to-earnings (P/E) ratio and price-to-book (P/B) ratio, along with absolute valuation methods like discounted cash flow [4]. Group 2 - The article describes the stock market's volatility, likening it to a "Mr. Market" who is erratic and provides daily price quotes, suggesting that investors should not be swayed by short-term fluctuations [7]. - It is advised to establish a personal investment philosophy and understand the intrinsic value of investments to identify undervalued opportunities [7]. - The concept of a "circle of competence" is mentioned, indicating the importance of investing within areas of expertise [8].