OTIS, the Online Trading and Investment Simulator, allows students to buy and sell securities using real-world market data without risking real money. This hands-on learning environment allows students to apply the concepts and test the strategies they learn in class, while giving instructors complete control over the parameters of trading and access into their students' portfolios. View a demo of OTIS. For more information, visit OTIS. OTIS is available with any Addison-Wesley Finance title. OTIS is automatically included with Fundamentals of Investing, Tenth Edition, by Lawrence J. Gitman and Michael D. Joehnk.