Chapter 21: How to Build and Manage a Stock-Picking Portfolio
This is Chapter 21 of my book Mastering Value Investing: Practical Strategies for Real-World Results . Go there for links to the other chapters. Most value investors spend enormous amounts of time asking one question: What stock should I buy? But finding an undervalued company is only the beginning. The harder question is what happens after you buy it. How many stocks should you own? When should you sell? And perhaps most importantly, what should you do when markets fall and your carefully selected stocks fall with them? My approach starts from a principle that differs from conventional portfolio theory. I build my portfolio stock by stock, based on business fundamentals and the gap between price and value. I am more concerned about permanent loss of capital than short-term volatility. But conviction does not mean betting everything on your best idea. I control risk through position sizing and diversification across geography, sectors, company sizes and different types of i...