The document discusses the capital asset pricing model (CAPM) and its use in valuing securities and selecting investments. It aims to examine if any shares are undervalued, calculate expected versus actual returns using the security market line, and suggest an optimal portfolio mix. Both primary data collected directly from sources and secondary data from journals, newspapers and the internet will be used. The scope is limited to using the security market line as an investment selection tool. Some limitations of CAPM are that it relies on unrealistic assumptions and beta is not stable over time.