This document discusses different types of stocks including preferred stock and common stock. It provides details on: - Preferred stock features such as cumulative dividends, participating features, voting rights, and call and sinking fund provisions. It also discusses preferred stock valuation using the present value formula. - Common stock as the ultimate ownership in a corporation with rights to income, voting, and potential preemptive rights. It discusses common stock valuation using the dividend discount and constant growth dividend discount models. - Examples are provided to demonstrate the calculations for valuing preferred and common stock.