This document discusses portfolio management. It defines a portfolio as a group of financial assets like stocks, bonds, and mutual funds that are combined to reduce risk. Portfolio management is the process of creating and maintaining investment portfolios. There are active and passive approaches to portfolio management. The key phases of portfolio management are security analysis, portfolio analysis, selection, revision, and evaluation. Models like the Capital Asset Pricing Model (CAPM), Capital Market Line (CML), and Security Market Line (SML) are used to calculate risk and return of portfolios and individual securities.