The article "Portfolio Risk Analysis" explores different ways to predict and manage risks in investment portfolios. It discusses various models used by financial experts to understand how assets behave in different economic situations. The authors focus on practical applications and real-world examples to help readers grasp complex financial concepts. They cover topics like factor models, volatility index, and different types of risks like credit and liquidity risk. The article is a valuable resource for anyone interested in financial markets, whether they are professionals, researchers, or students looking to improve their understanding of how investments work.