EIGHTH EDITION FUNDAMENTALS OF FUTURES AND OPTIONS ...

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OPTIONS. MARKETS. John C. Hull. Maple Financial Group Professor of Derivatives and Risk Management. Joseph L. Rotman School of Management.
EIGHTH

EDITION

FUNDAMENTALS FUTURES

AND

OF

OPTIONS

MARKETS

John C. Hull Maple Financial Group Professor of Derivatives and Risk Management Joseph L. Rotman School of Management University of Toronto

PEARSON Boston Columbus Indianapolis New York San Francisco Upper Saddle River Amsterdam Cape Town Dubai London Madrid Milan Munich Paris Montreal Toronto Delhi Mexico City Sao Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo

Contents

Preface

Xv

Chapter 1: 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11

Introduction Futures Contracts History of Futures Markets The Over-the-Counter Market Forward Contracts Options History of Options Markets Types of Trader Hedgers Speculators Arbitrageurs Dangers Summary Further Reading Quiz Practice Questions Further Questions

1 1 2 4 6 7 10 11 11 14 17 18 18 20 20 20 22

Chapter 2: 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11

Mechanics of Futures Markets Opening and Closing Futures Positions Specification of a Futures Contract Convergence of Futures Price to Spot Price The Operation of Margin Accounts OTC Markets Market Quotes Delivery Types of Trader and Types of Order Regulation Accounting and Tax Forward vs. Futures Contracts Summary Further Reading Quiz Practice Questions Further Questions

24 24 25 28 29 32 36 37 38 39 40 42 44 45 45 46 47 v

Contents

VI Chapter 3: 3.1 3.2 3.3 3.4 3.5 3.6

Hedging Strategies Using Futures Basic Principles Arguments lor and Against Hedging Basis Risk Cross Hedging Stock Index Futures Stack and Roll Summary Further Reading Quiz Practice Questions Further Questions Appendix: Review of Key Concepts in Statistics and the CAPM

^9 ^ 5_ ^ ^ ^ (,t)

70 71 72 73 74 76

Chapter 4: 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8

Interest Rates Types of Rates Measuring Interest Rates Zero Rates Bond Pricing Determining Treasury Zero Rates Forward Rates Forward Rate Agreements Theories of the Term Structure of Interest Rates Summary Further Reading Quiz Practice Questions Further Questions Appendix: Exponential and Logarithmic Functions

SI 81 83 85 86 88 90 92 94 97 98 9N 99 100 102

Chapter 5: 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 5.14

Determination of Forward and Futures Prices Investment Assets vs. Consumption Assets Short Selling Assumptions and Notation Forward Price for an Investment Asset Known Income Known Yield Valuing Forward Contracts Are Forward Prices and Futures Prices Equal'.' Futures Prices of Stock Indices Forward and Futures Contracts on Currencies Futures on Commodities The Cost of Carry Delivery Options Futures Prices and the Expected Spot Prices Summary Further Reading Quiz

104 104 105 10(, 107 110 1 |] 1| ] 1 is I Is I |7 12i 124 124 12.S py I -O 129

vii Practice Questions Further Questions

.129 .131

Interest Rate Futures Day Count and Quotation Conventions Treasury Bond Futures Eurodollar Futures Duration Duration-Based Hedging Strategies Using Futures Summary Further Reading Quiz Practice Questions Further Questions Swaps Mechanics of Interest Rate Swaps Day Count Issues Confirmations The Comparative-Advantage Argument The Nature of Swap Rates Overnight Indexed Swaps Valuation of Interest Rate Swaps Estimating the Zero Curve for Discounting Forward Rates Valuation in Terms of Bonds Term Structure Effects Fixed-for-Fixed Currency Swaps Valuation of Fixed-for-Fixed Currency Swaps Other Currency Swaps Credit Risk Other Types of Swap Summary Further Reading Quiz Practice Questions Further Questions

.133 .133 .136 .141 .144 .149 .153 .154 .154 .155 .156 .158 158 164 165 165 169 169 171 171 174 175 178 178 182 183 185 188 189 190 191 192 193

Securitization and the Credit Crisis of 2007 Securitization The U.S. Housing Market What Went Wrong? The Aftermath Summary Further Reading Quiz Practice Questions Further Questions

195 195 199 203 205 206 207 208 208 208

Mechanics of Options Markets Types of Option

210 210

Contents

viii 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 9.10 9.11 9 12

Option Positions Underlying Assets Specification of Stock Options Trading Commissions Margin Requirements The Options Clearing Corporation Regulation Taxation Warrants, Employee Stock Options, and Convertibles Over-the-Counter Options Markets Summary Further Reading Quiz Practice Questions Further Questions

13 " 1

-—4 — ^'S 226 —7 —

Chapter 10: 10.1 10.2 10.3 10.4 10.5 10.6 10.7

Properties of Stock Options Factors Affecting Option Prices Assumptions and Notation Upper and Lower Bounds for Option Prices Put-Call Parity Calls on a Non-Dividend-Paying Stock Puts on a Non-Dividend-Paying Stock Effect of Dividends Summary Further Reading Quiz Practice Questions Further Questions

232

Chapter 11: 11.1 1.2 1.3 1.4 11.5

Trading Strategies Involving Options Principal-Protected Notes Strategies Involving a Single Option and a Stock Spreads Combinations Other Payoffs Summary Further Reading Quiz Practice Questions Further Questions

254 254 256 258 266 269 269 270 270 271 271

Chapter 12: 12.1 12.2 12.3 12.4 12.5 12.6

Introduction to Binomial Trees A One-Step Binomial Model and a No-Arbitrage Argument Risk-Neutral Valuation Two-Step Binomial Trees A Put Example American Options Delta

273 273 277 279

236 236 240 244 24."^ 248 249 250 2.M) 251 252

2S"(

Contents

ix

12.7 Determining it and d 12.8 Increasing the Number of Time Steps 12.9 Using DerivaGem 12.10 Options on Other Assets Summary Further Reading Quiz Practice Questions Further Questions Appendix: Derivation of the Black-Scholes-Merton Option Pricing Formula from Binomial Tree Chapter 13: 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9 13.10

285 286 287 287 292 292 292 293 294 296

Valuing Stock Options: The Black-Scholes-Merton Model Assumptions about How Stock Prices Evolve Expected Return Volatility Estimating Volatility from Historical Data Assumptions Underlying Black-Scholes-Merton The Key No-Arbitrage Argument The Black-Scholes-Merton Pricing Formulas Risk-Neutral Valuation Implied Volatilities Dividends Summary Further Reading Quiz Practice Questions Further Questions Appendix: The Early Exercise of American Call Options on Dividend-Paying Stocks

298 299 302 303 304 306 307 309 311 312 314 316 317 318 318 320 321

Chapter 14: 14.1 14.2 14.3 14.4 14.5

Employee Stock Options Contractual Arrangements Do Options Align the Interests of Shareholders and Managers? Accounting Issues Valuation Backdating Scandals Summary Further Reading Quiz Practice Questions Further Questions

323 323 325 326 328 329 331 331 332 332 333

Chapter 15: 15.1 15.2 15.3 15.4 15.5 15.6

Options on Stock Indices and Currencies Options on Stock Indices Currency Options Options on Stocks Paying Known Dividend Yields Valuation of European Stock Index Options Valuation of European Currency Options American Options

334 334 337 339 341 344 345

X Summary Further Reading Practice Questions Further Questions Chapter 16: 16.1 16.2 16.3 16.4 16.5 16.6 16.7 16.8 16.9 16.10 16.11

Futures Options Nature of Futures Options Reasons for the Popularity of Futures Options European Spot and Futures Options Put-Call Parity Bounds for Futures Options Valuation of Futures Options Using Binomial Trees A Futures Price as an Asset Providing a Yield Black's Model for Valuing Futures Options Using Black's Model Instead of Black-Scholes -Merlon American Futures Options vs. American Spot Options Futures-Style Options Summary Further Reading Quiz Practice Questions Further Questions

Chapter 17: 17.1 17.2 17.3 17.4 17.5 17.6 17.7 17.8 17.9 17.10 17.11 17.12 17.13 17.14

The Greek Letters Illustration Naked and Covered Positions A Stop-Loss Strategy Delta Hedging Theta Gamma Relationship Between Delta, Theta, and Gamma Vega Rho The Realities of Hedging Scenario Analysis Extension of Formulas Creating Options Synthetically for Portfolio Insurance Stock Market Volatility Summary Further Reading Quiz Practice Questions Further Questions

Chapter 18: Binomial Trees in Practice 18.1 The Binomial Model for a Non-Dividend-Paying Stock 18.2 Using the Binomial Tree for Options on Indices^ Currencies, and Futures Contracts 18.3 The Binomial Model for a Dividend-Paying Stock

^ ^50

35."> 358 360 -W 361 362 362 362 364 365 365 366 366 368 375 377 380 381 183 384 3X4 3S6 388 31)| ^ ^ 3% V)o 4():> 406

Contents

xj

18.4 Extensions of the Basic Tree Approach 18.5 Alternative Procedure for Constructing Trees 18.6 Monte Carlo Simulation Summary Further Reading Quiz Practice Questions Further Questions Chapter 19: 19.1 19.2 19.3 19.4

410 412 412 414 415 415 416 417

Volatility Smiles Foreign Currency Options Equity Options The Volatility Term Structure and Volatility Surfaces When a Single Large Jump Is Anticipated Summary Further Reading Quiz Practice Questions Further Questions Appendix: Why the Put Volatility Smile is the Same as the Call Volatility Smile

418 418 421 423 425 426 427 428 428 429 431

Chapter 20: 20.1 20.2 20.3 20.4 20.5 20.6 20.7 20.8

Value at Risk The VaR Measure Historical Simulation Model-Building Approach Generalization of Linear Model Quadratic Model Estimating Volatilities and Correlations Comparison of Approaches Stress Testing and Back Testing Summary Further Reading Quiz Practice Questions Further Questions

433 433 436 440 443 448 450 456 456 457 458 459 459 461

Chapter 21: 21.1 21.2 21.3 21.4 21.5 21.6 21.7

Interest Rate Options Exchange-Traded Interest Rate Options Embedded Bond Options Black's Model European Bond Options Interest Rate Caps European Swap Options Term Structure Models Summary Further Reading Quiz Practice Questions Further Questions

463 463 465 465 467 469 475 478 479 480 480 481 482

xii Chapter 22: 22.1 22.2 22.3

Exotic Options and Other Nonstandard Produe: Exotic Options Agency Mortgage-Backed Securities Nonstandard Swaps Summary Further Reading Quiz Practice Questions Further Questions Chapter 23: Credit Derivatives 23.1 Credit Default Swaps 23.2 Valuation of Credit Default Swaps 23.3 Total Return Swaps 23.4 CDS Forwards and Options 23.5 Credit Indices 23.6 The Use of Fixed Coupons 23.7 Collateralized Debt Obligations Summary Further Reading Quiz Practice Questions Further Questions Chapter 24: Weather, Energy, and Insurance Derivatives 24.1 Weather Derivatives 24.2 Energy Derivatives 24.3 Insurance Derivatives Summary Further Reading Quiz Practice Questions Further Question Chapter 25: Derivatives Mishaps and What We Can Learn From Them 25.1 Lessons for All Users of Derivatives 25.2 Lessons for Financial Institutions 25.3 Lessons for Nonfinancial Corporations Summary Further Reading Answers to Quiz Questions Glossary of Terms DerivaGem Software Major Exchanges Trading Futures and Options Table for N(x) When x ^ 0 Table for N(x) When x > 0 Index

Contents 483 " 4J0

' 4W 5(W ^03 504 508 512 514 514 515 516 51V 519 520 520 521 522 522 523 526 527 528 52S 529 529 530 530 534 539 541 541 542

589 591