Choose a publicly traded company that interests you. If you don't know how to choose a company, think of IBM, DELL computer, Nike, Apple computer, GM, Ford, Nokia, Home Depot, and on and on. Think of the companies that make things you use everyday. Choose one from them. Part A. Go to COMPUSTAT Research Insights, Reuter's, Thomson Financial Service, or Bloomberg Financial (E-Trade Financial Learning Center has them all) or any other financial database such as Yahoo Finance to download the historical closing prices (five years) of your company on the monthly basis (twelve data points a year). Use Microsoft Excel to chart the historical prices (like the one below) based on the monthly data.