This finance report, addressing the Fin 200 course, delves into crucial financial concepts. It begins by differentiating between the Security Market Line (SML) and the Capital Market Line (CML), highlighting their distinct approaches to risk and return analysis. The report then explores the significance of Minimum Variance Portfolios (MVP) in portfolio construction, emphasizing their role in risk mitigation. Furthermore, it examines the Capital Asset Pricing Model (CAPM), detailing its formula, assumptions, and relevance in determining the required rate of return for investments. The report underscores CAPM's advantages over other methods, particularly in considering systematic risk and providing a framework for calculating the cost of capital, and concludes by summarizing the key findings on SML, CML, CAPM, and their interrelations.