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Derivatives Essentials

An Introduction to Forwards,
Futures, Options, and Swaps

ARON GOTTESMAN

 

 

 

Title Page

For my wife Ronit and our children
Libby, Yakov, Raphi, Tzipora, and Kayla

Preface

This book provides an in-depth introduction to derivative securities. A derivative security is an agreement between two counterparties whose payoff depends on the value of an underlying asset. There is extensive interest in derivative securities due to their usefulness as tools through which investors can monetize views and transform exposures. Yet many that pursue an understanding of derivative securities can be frustrated with educational material that assumes the learner has sophisticated quantitative skills. Further, those with sophisticated quantitative skills can be frustrated with educational material that derives equations with little insight into the economic nature of derivative securities products and strategies.

This book focuses on helping you develop a meaningful understanding of derivative securities products and strategies and how to communicate your understanding both conceptually as well as through equations. You will learn about each product and strategy and the reasons for investing in them. You will learn about quantitative pricing and valuation models and will develop a deep understanding as to why the models represent price and value. You will learn of the great importance of the sensitivity measures known as the “Greeks” and learn how to use them to understand and characterize products and strategies.

Quantitative modeling is an important element of derivative securities, and this book will present quantitative models. However, this book does not assume that you have sophisticated quantitative or finance skills beyond the ability to add, subtract, multiply, divide, raise to a power, and rudimentary familiarity with time value of money concepts. Any other quantitative concept that is required to understand the material in this book will be introduced before it is required. Further, this book does not intend to provide comprehensive mathematical derivations nor provide quantitative overviews of each of the myriad of derivative securities variations in existence. Instead, the quantitative analysis in this book focuses on several key products through which we will explore conceptual and quantitative insights that are broadly applicable to other products and, most importantly, enable you to verbally communicate a deep understanding of products and strategies.

There are five parts to this book:

Part One introduces forwards, futures, and options. Forwards and futures are agreements that obligate counterparties to transact in the future. Options are agreements that provide one of the counterparties a right, and not an obligation, to transact in the future. In Part One you will learn about the key characteristics of forwards, futures, and options and each position's cash flows, payoffs, and P&L (profit and loss). You will also learn why forwards, futures, and options are described as zero-sum games and the concepts of moneyness and counterparty credit risk.

Part Two explores pricing and valuation of forwards and options. In Part Two you will learn to distinguish between price and value and explore models of price and value for each position, including the Black-Scholes and binomial option pricing models. You will also learn about the assumptions that these models make, risk-neutral valuation, and why the models represent price and value. You will also be introduced to the concepts of implied volatility and volatility surfaces.

Part Three explores the “Greeks,” which are measures of product and strategy sensitivity to change in the determinants of their value. In Part Three you will learn how to define, calculate, and interpret the Greeks and why they can be inaccurate. You will also develop a deep understanding of how the Greeks can be used to understand and describe sensitivity; why a given Greek will be positive, negative, or zero; and why its magnitude can change.

Part Four explores trading strategies. In Part Four you will learn how to describe and implement price and volatility trading strategies, create synthetic positions, and implement protective, yield enhancing, and spread trading strategies. The trading strategies that will be explored in Part Four include straddles, strangles, protective puts, covered calls, collars, bull spreads, bear spreads, risk reversals, butterfly spreads, and condor spreads, among others. You will also learn advanced concepts related to moneyness and put-call parity.

Part Five introduces swaps. A swap is an exchange of cash flows between two counterparties over a number of periods of time. In an interest rate swap the counterparties exchange fixed and floating interest rates. In a credit default swap periodic payments of spread are exchanged for a payment contingent on a credit event. In a cross-currency swap the counterparties exchange interest payments in different currencies. In Part Five you will learn about the key characteristics of these swaps, their sensitivities and cash flows, and how they can be used to transform exposures.

Most of the chapters in this book build on the material in previous chapters. It is therefore important that you truly understand each chapter before advancing to the next. To allow you to test your understanding, there are more than 650 Knowledge check questions throughout the book, the solutions to which are provided in the appendix. The Knowledge check questions can be used to ensure absorption of the material both when you learn the material for the first time and also when you review.

I hope this book provides you with a deep understanding of derivative securities and an enjoyable and valuable learning experience!

Acknowledgments

I want to acknowledge the contribution of Bill Falloon of John Wiley & Sons. This book would not have been brought to completion without Bill's critical support. I also want to acknowledge Meg Freeborn, Michael Henton, and Chaitanya Mella of Wiley, Kevin Mirabile of Fordham University, and my colleagues at Pace University including Niso Abuaf, Lew Altfest, Neil Braun, Arthur Centonze, Burcin Col, Ron Filante, Natalia Gershun, Elena Goldman, Iuliana Ismailescu, Padma Kadiyala, Maurice Larraine, Sophia Longman, Ray Lopez, Ed Mantell, Matt Morey, Jouahn Nam, Richard Ottoo, Joe Salerno, Michael Szenberg, Carmen Urma, PV Viswanath, Tom Webster, Berry Wilson, and Kevin Wynne. I also want to acknowledge Niall Darby, Stephen Feline, Allegra Kettelkamp, John O'Toole, Patrick Pancoast, Carlos Remigio, Lisa Ryan, and the entire team at Intuition. I further want to acknowledge Moshe Milevsky, Eli Prisman, and Gordon Roberts of York University and Gady Jacoby of the University of Manitoba who helped spark my career. Thank you to my many students from whom I've learned tremendously. Finally, thank you to my wife Ronit, a woman of valor, and our children Libby, Yakov, Raphi, Tzipora, and Kayla for providing so much love and support.

About the Author

Aron Gottesman is Professor of Finance and the Chair of the Department of Finance and Economics at the Lubin School of Business at Pace University in Manhattan. He holds a PhD in Finance, an MBA in Finance, and a BA in Psychology, all from York University. He has published articles in academic journals including the Journal of Financial Intermediation, Journal of Banking and Finance, Journal of Empirical Finance, and the Journal of Financial Markets, among others, and has coauthored several books. Aron Gottesman's research has been cited in newspapers and popular magazines, including The Wall Street Journal, The New York Times, Forbes Magazine, and Business Week. He teaches courses on derivative securities, financial markets, and asset management. Aron Gottesman also presents workshops to financial institutions. His website can be accessed at www.arongottesman.com.

Part One

Introduction to Forwards, Futures, and Options