Chapter 14: Options Markets - Financial Markets and Institutions
Background and Fundamentals of Options
Definition of Options * Call Option: Represents the right to purchase an underlying financial instrument at a specified exercise price (or strike price) within a defined period of time. * In the money: When the current market price of the underlying instrument is greater than the exercise price (). * At the money: When the market price is exactly equal to the exercise price (). * Out of the money: When the market price is less than the exercise price (). * Put Option: Represents the right to sell an underlying financial instrument at a specified exercise price (or strike price) within a defined period of time. * In the money: When the market price is less than the exercise price (). * At the money: When the market price equals the exercise price (). * Out of the money: When the market price is greater than the exercise price ().
Comparison of Options and Futures * Premiums: To obtain an option, the buyer must pay a premium in addition to the price of the financial instrument itself. In contrast, futures contracts primarily involve obligations without an upfront premium of this nature. * Expirations: The owner of an option maintains the choice to let the contract expire on the expiration date without exercising it if the transaction is not favorable. Futures contracts typically represent a binding obligation to fulfill the contract terms.
Markets Used to Trade Options * Chicago Board Options Exchange (CBOE): Established in 1973, it remains the most significant exchange for trading options. * CME Group: Another major venue where options are traded. * Stock Exchanges: As stock options gained popularity, various stock exchanges began listing them. * Listing Requirements: A primary requirement for an option to be listed is a minimum trading volume of the underlying company's stock. * Role of the Options Clearing Corporation (OCC): Serves as the essential guarantor for option contracts traded within the United States to ensure contract fulfillment. * Regulation: Trading is regulated by the Securities and Exchange Commission (SEC) and other regulatory bodies.
Executing Trades * Types of Orders: Investors can utilize market orders (executed at the prevailing price) or limit orders (executed only at a specific price or better) for option transactions. * Online Trading: Option contracts can be conveniently purchased or sold through online platforms.
Institutional Participation in Options Markets
Commercial Banks: Sometimes offer options directly to business clients.
Savings Institutions: Typically take positions in options on futures contracts to hedge against potential interest rate risk.
Mutual Funds: * Stock Mutual Funds: Take positions in stock index options to hedge against declines in the market value of their portfolios. They may also take speculative positions to boost returns. * Bond Mutual Funds: Use options on futures to hedge against interest rate risk.
Securities Firms: Function primarily as brokers, executing stock option transactions on behalf of individuals and businesses.
Pension Funds: * Utilize stock index options to protect their stock portfolios from price declines. * Use options on futures contracts to hedge bond portfolios against adverse interest rate movements.
Insurance Companies: * Employ stock index options for hedging equity portfolios. * Use options on futures to protect bond portfolios from interest rate volatility.
Determinants of Stock Option Premiums
Determinants of Call Option Premiums * Market Price: There is a positive relationship; the higher the existing market price relative to the exercise price, the higher the call option premium. * Stock Volatility: Greater volatility in the underlying stock leads to a higher call option premium because of the increased potential for the price to exceed the strike. * Time to Maturity: The longer the time until expiration, the higher the premium, as there is more time for price favorable movements.
Determinants of Put Option Premiums * Market Price: There is an inverse relationship; the higher the market price relative to the exercise price, the lower the put option premium. * Stock Volatility: Similar to calls, greater volatility results in a higher put option premium. * Time to Maturity: A longer duration until expiration increases the put option premium.
Deriving Volatility through Pricing Formulas * Investors use option-pricing formulas (like Black-Scholes) to estimate a stock's anticipated volatility. * Implied Volatility: By inputting the prevailing market premium and other known factors into the formula, investors can calculate the implied standard deviation or implied volatility.
Indicator Monitoring * Option traders monitor economic indicators because conditions influence cash flows and firm valuations, which in turn impact premiums. * Framework factors include economic conditions, market conditions, and anticipated volatility.
Data and Market Quotations (Exhibits 14.1 - 14.6)
Exhibit 14.1 Company Quotations Sample: * Option 1: Exercise Price , Expiration June, Call Premium , Put Premium . * Option 2: Exercise Price , Expiration September, Call Premium , Put Premium . * Option 3: Exercise Price , Expiration June, Call Premium , Put Premium . * Option 4: Exercise Price , Expiration September, Call Premium , Put Premium .
Exhibit 14.3 Tesla, Inc. Call Premium vs. Exercise Price (April Expiration): * Exercise : Premium * Exercise : Premium * Exercise : Premium * Exercise : Premium * Exercise : Premium
Exhibit 14.4 Tesla, Inc. Call Premium vs. Maturity ( Strike): * June 23: Premium * July 21: Premium * August 18: Premium
Exhibit 14.5 Tesla, Inc. Put Premium vs. Exercise Price (June Expiration): * Exercise : Premium * Exercise : Premium * Exercise : Premium * Exercise : Premium * Exercise : Premium
Exhibit 14.6 KSR Stock Put Premium vs. Maturity ( Strike): * June 23: Premium * July 21: Premium * August 18: Premium
Speculating with Stock Options
Speculating with Call Options: Used when an investor expects the price of the underlying stock to increase. If the stock price rises above the strike price plus premium, the investor realizes a profit.
Speculating with Put Options: Used when an investor expects the price of the underlying stock to decrease.
Case Study: Steelco Potential Returns (Exhibit 14.10): * Option 1 ( strike, premium): Profit per unit ranges from (at stock price ) to (at stock price ). Percentage return from to . * Option 2 ( strike, premium): Profit ranges from to . Percentage return from to . * Option 3 ( strike, premium): Profit ranges from to . Percentage return from to .
Managing Speculative Risk: * Firms must monitor employees to ensure trading stays within internal guidelines. * Separation of reporting and trading functions is critical so traders cannot hide losses. * Firms should evaluate positions closely when receiving margin calls.
Hedging Strategies using Options
Covered Call Strategy: * Involves selling a call option on a stock already owned by the investor. * Downside Protection: The premium received from the call sale partially offsets losses if the stock price declines. * Upside Limitation: If the stock price increases significantly, the call will be exercised, and the investor must sell the stock at the strike price, capping gains.
Hedging with Put Options: Portfolio managers use put options to protect against temporary declines in a stock's value. The put sets a floor on the potential loss.
Long-term Equity Anticipations (LEAPs): * Options with expiration dates ranging from two to three years from their listing date. * Available for large-capitalization stocks and are more effective for long-term hedging than short-term options.
Options on ETFs and Stock Indexes
Overview: Options are available on various exchange-traded funds (ETFs) and major stock indexes, allowing for speculation on broader market movements.
Settlement: These provide the right to trade the index at a specified price by the expiration date.
Examples of Available Instruments (Exhibit 14.13): * ETFs: iShares Nasdaq Biotechnology, iShares Russell 1000 Value, Financial Select Sector SPDR, Health Care Select Sector SPDR. * Indexes: S&P 500, S&P 100, Nasdaq 100, Dow Jones Industrial Average, Russell 2000, Emerging Markets Asia Index.
Dynamic Asset Allocation: Managers switch between risky and low-risk positions based on market expectations. Index options are used to adjust market exposure efficiently.
Measuring Market Risk: A stock index's implied volatility can be derived from its index options, providing insight into market-wide risk sentiment.
Options on Futures Contracts
Definition: Gives the owner the right (but not the obligation) to purchase or sell a specific futures contract at a set price within a set period.
Speculation on Interest Rates: * Decline in Rates: Speculators purchase call options on Treasury bond (T-bond) futures. * Increase in Rates: Speculators purchase put options on Treasury bond futures.
Hedging Interest Rate and Stock Risk: * Banks hedge mortgage/bond portfolios with interest rate futures options. * Investors hedge stock portfolios with index futures options to offset potential losses while retaining some upside potential.
Exhibit 14.14 Hedging Results (T-Bond Put Options): * Scenario 1 (Rates Rise): T-bond futures price declines to . Decision: Exercise put option. Result: Sale at minus Purchase at minus Premium equals Net Gain of . * Scenario 2 (Rates Fall): T-bond futures price increases to . Decision: Do not exercise. Result: Net loss of (the premium paid).
Executive Compensation and Globalization
Options as Executive Compensation: * Purpose: To align executive incentives with the firm's stock performance. * Drawbacks: Programs often ignore general market conditions. Executives may be tempted to manipulate stock prices for short-term gain at the expense of long-term stability.
Globalization of Options: * Currency Options: Provide the right to buy (call) or sell (put) a specific currency at a set price. * Speculation: Buyers pick calls for strengthening currencies and puts for weakening currencies. * International Business: Firms use currency options to hedge future payables and receivables in foreign markets. Every buyer requires a seller (writer) to form a contract.